The University of Chicago Library > The Hanna Holborn Gray Special Collections Research Center > Finding Aids > Guide to the University of Chicago Yerkes Observatory Logbooks and Notebooks 1892-1988
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The Yerkes Observatory Logbooks and Notebooks were processed and preserved with support from the John Crerar Foundation.
| Title: | University of Chicago. Yerkes Observatory. Logbooks and Notebooks |
|---|---|
| Dates: | 1892-1988 |
| Size: | 26.5 linear feet (53 boxes) |
| Repository: |
Hanna Holborn Gray Special Collections Research Center |
| Abstract: | The collection contains logbooks and observations notebooks compiled by astronomers at the Yerkes Observatory. The majority of notebooks date from 1892 to 1947, though All the notebooks are in excellent condition and their information is very accessible. |
This collection is open for research.
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When quoting material from this collection, the preferred citation is: Yerkes Observatory. Logbooks and Notebooks, [Box #, Folder #], Hanna Holborn Gray Special Collections Research Center, University of Chicago Library
Yerkes Observatory, located in Williams Bay, Wisconsin, is a facility of the University of Chicago's Department of Astronomy and Astrophysics. The observatory opened in 1897 as the joint creation of three founders: William Rainey Harper, the first president of the University of Chicago; Professor George E. Hale, the observatory’s first director; and Charles T. Yerkes, a wealthy Chicago businessman who provided funds for the erection of the observatory building. On the shores of Lake Geneva, this observatory was designed by Henry Ives Cobb, with landscape architecture by John Olmsted.
Yerkes became known in the astronomical community as the home of the last of the great refracting telescopes, a 40-inch instrument first exhibited at the World’s Columbian Exposition in 1893. The observatory housed the university's Department of Astronomy and Astrophysics until the 1960s, and was the site of some of the most significant research in modern astronomy and astrophysics.
The collection is divided in two series. The first series includes all the notebooks that include the research observations of a clearly identifiable author. The second series contains all notebooks and logbooks that were intended for general use or were unclassifiable. Hence, most of the logbooks and notebooks of this series have multiple authors or unidentifiable authors.
Logbooks compiled by Edward Emerson Bernard, W. W. Morgan and Philip Fox may be found with their papers, also held by the Special Collections Research Center.
University of Chicago. Committee on Social Thought. Records
Series I: By Author |
Subseries 1: E. C. Arbogast |
| Box 1 Folder 1 | Transit, July 1899-July 1901 |
| Box 1 Folder 2 | Notebook for Sky Standard Spectrograms and Radial Velocities Measures, April 17th 1909 to August 22nd 1911 |
Subseries 2: Sherborne W. Burnham |
| Box 1 Folder 3 | Book 1, September, 1897-October, 1898 |
| Box 1 Folder 4 | Book 2, October, 1898-June, 1900 |
| Box 1 Folder 5 | Book 3, 1900-1901 |
| Box 1 Folder 6 | Book 4, March-July, 1901 |
| Box 2 Folder 1 | Book 5, July-October, 1901 |
| Box 2 Folder 2 | Book 6, November, 1901-August, 1902 |
| Box 2 Folder 3 | Book 7, 1905-1906 |
| Box 2 Folder 4 | Book 8, February, 1903-June, 1903 |
| Box 2 Folder 5 | Book 18, 1906 |
| Box 2 Folder 6 | Book 19, 1906-1907 |
| Box 3 Folder 1 | Book 20, 1907 |
| Box 3 Folder 2 | Book 21, 1907 |
| Box 3 Folder 3 | Book 22, 1907-1908 |
| Box 3 Folder 4 | Book 23, 1908 |
| Box 3 Folder 5 | Book 24, 1908 |
| Box 3 Folder 6 | Book 25, 1908-1909 |
| Box 4 Folder 1 | Book 26, 1909 |
| Box 4 Folder 2 | Book 27, 1909 |
| Box 4 Folder 3 | Book 28, 1909-1910 |
| Box 4 Folder 4 | Book 29, 1910 |
| Box 4 Folder 5 | Book 30, 1910-1911 |
| Box 4 Folder 6 | Book 31, 1911 |
| Box 5 Folder 1 | Book 32, 1911 |
| Box 5 Folder 2 | Book 33, 1911-1912 |
| Box 5 Folder 3 | Book 34, 1912-1913 |
| Box 5 Folder 4 | Book 35, 1913 |
Subseries 3: Ferdinand Ellerman |
| Box 5 Folder 5 | Scale Errors Determination on Zriss Comparator, 1899 |
| Box 5 Folder 6 | Series "R", Spectrographic Observations with 2-foot Reflector, 1901-1902 |
| Box 5 Folder 7 | Stellar Spectroscopic Observations, Hale-Ellerman, Yerkes Observatory, Series G, 1897-1901 |
Subseries 4: Edwin B. Frost |
| Box 6 Folder 1 | Bruce Spectrograph, Vol. 1. 1901 |
| Box 6 Folder 2 | Frost Edwin B., Bruce Spectrograph, Observations, 1898-1900 |
Subseries 5: George Ellery Hale |
| Box 6 Folder 3 | Notebook 1, Solar Work, Yerkes Observatory, September 14th 1899 |
Subseries 6: Norton A. Kent |
| Box 6 Folder 4 | Logbook, Spectrum Measurements, Series "S" I, July, 1901-June, 1902 |
| Box 6 Folder 5 | Logbook, Spectrum Measurements, Series "S" II, June, 1902-October, 1902 |
| Box 6 Folder 6 | Logbook, Spectrum Measurements, Series "S" III, October, 1902-February, 1903 |
| Box 6 Folder 7 | Laboratory Note Book II, Also Spectrum Measurements continued from Book III, 1902-1903 |
Subseries 7: Gerard P. Kuiper |
| Box 6 Folder 8 | McDonald Observatory, Radiometric Program, 1940 |
Subseries 8: John A. Parkhurst |
| Box 7 Folder 1 | P. 1, Type IV Spectrum Measures, 1899-1901 |
| Box 7 Folder 2 | P. 2, Type IV Measures, 1901 |
| Box 7 Folder 3 | P. 3, Reductions Type 4, 1900 |
| Box 7 Folder 4 | P. 4, Type IV Measures, 1901 |
| Box 7 Folder 5 | P. 5, 152 Sch Measures, 1901 |
| Box 7 Folder 6 | P. 6, Identifications, 1902 |
| Box 7 Folder 7 | P. 7, Mean Wave Lengths, undated |
| Box 8 Folder 1 | P.8, 132 Schy, 1901 |
| Box 8 Folder 2 | P.9, 74 Schy, 1900 |
| Box 8 Folder 3 | P.10, Type IV Classification, 1903 |
| Box 8 Folder 4 | P.11, 78 Schy, 1900 |
| Box 8 Folder 5 | P.12, +68°617=318 Birm, 1901-1902 |
| Box 8 Folder 6 | P.13, Mean Wave Lengths, undated |
| Box 8 Folder 7 | P.14, 280 Schy, 1902 |
| Box 9 Folder 1 | 12, Variables, June 20 1894 - December 1898 |
| Box 9 Folder 2 | 14, Micrometer, May 5th 1896 - September 17th 1897 |
| Box 9 Folder 3 | P.15, 115 Schy, 1902 |
| Box 9 Folder 4 | 15 Variable Stars, 1893 - 1897 |
| Box 9 Folder 5 | P.16, Type IV Mean Wave Lengths, 115 Schy, 19 Pisc, undated |
| Box 9 Folder 6 | P.17, Type IV, Radial Velocity, 1902 |
| Box 9 Folder 7 | 18 Micrometer, Results, April 18th 1895 - 1921 |
| Box 10 Folder 1 | P. 19, Ephemeirs Long Periods, 1897-1899 |
| Box 10 Folder 2 | P. 20, Variable Stars, Results, Nov. 1 1896-1899 |
| Box 10 Folder 3 | P. 21, Observing Lists, 1896 - 1903 |
| Box 10 Folder 4 | P. 22, Missing D.M. Stars, 1897 - 1898 |
| Box 10 Folder 5 | P. 24, Notes for Popular Astronomy, 1895-1898 |
| Box 10 Folder 6 | P. 25, Comparison Stars, 1895 |
| Box 10 Folder 7 | P. 26, Reductions 2, 1897 |
| Box 11 Folder 1 | P.28, Yerkes Observatory, Postdam Photom A.M., 1898 |
| Box 11 Folder 2 | P.29, Yerkes Observatory, 1900 |
| Box 11 Folder 3 | P.30, Spectroscope, 1893-1901 |
| Box 11 Folder 4 | P.31, Notes, 1899 |
| Box 11 Folder 5 | P.32, Variables Observations, 1899 |
| Box 11 Folder 6 | P.34, Photometer, Comp. Stars, Wheel Photometer, Rumford Work, April 26 September13th, 1900 |
| Box 11 Folder 7 | P.35, Index 2, 1904 |
| Box 12 Folder 1 | P.36 Yerkes 40 inch, 1900 |
| Box 12 Folder 2 | P.37 Variables Observations, January 1st -December 11th, 1900 |
| Box 12 Folder 3 | P.38 Observations with 12’’, 1900 |
| Box 12 Folder 4 | P.39 Photometer No. 2, September 21st 1900 to March 16th 1901 |
| Box 12 Folder 5 | P.40 Nova Persei, February 1901 to April 2nd, 1902 |
| Box 12 Folder 6 | P.49 Index to Variables, 1903 - 1904 |
| Box 12 Folder 7 | P.56, Journal 6 inch Stars, 1899-1900 |
| Box 13 Folder 1 | P.57, Journal 12 inch Stars, 1897-1902 |
| Box 13 Folder 2 | P.58 Journal, 40’’ Stars, 1902 |
| Box 13 Folder 3 | P.60 Reductions No.3, Bloodgood, undated |
| Box 13 Folder 4 | P.61 Reductions No.3, Bloodgood, undated |
| Box 13 Folder 5 | P.65, Photometer, 1902-1903 |
| Box 13 Folder 6 | P.66, Nova 2 Persei, 1902-1903 |
| Box 14 Folder 1 | P.67, Photometer, 6-inch Reflector Variables, 1903-1904 |
| Box 14 Folder 2 | P.68, Rumford Fields, 6-inch, 1903-1904 |
| Box 14 Folder 3 | P.69, Nova Gem, 1903 |
| Box 14 Folder 4 | P.70, Comstocks Zöllner, Photometer, 1903 |
| Box 14 Folder 5 | P.71, Nova Persei Reductions, 1901-1905 |
| Box 14 Folder 6 | P.72, Photometer Variables, 12-inch, 1903-1905 |
| Box 14 Folder 7 | P.73, Photometer Wedge V, by Zöllner, 1904 |
| Box 15 Folder 1 | P.74, Rumford Fields, 6-inch, 1904 |
| Box 15 Folder 2 | P.75, Photometer, 6-inch Reflector Variables, 1904-1905 |
| Box 15 Folder 3 | P.76, Comstock’s P.M. Stars, 1904 |
| Box 15 Folder 4 | P.77, Photometric Index, undated |
| Box 15 Folder 5 | P.78, Photometer, Rumford Photographs, 1905-1916 |
| Box 15 Folder 6 | Charts of Schonfeld’s, Southern Durchmosterung, Catalog in Bonn VIII, 1891 |
| Box 15 Folder 7 | Eclipses, 1918-1925 |
| Box 16 Folder 1 | Laboratory Note Book I, 1901-1902 |
| Box 16 Folder 2 | Micrometer Results #2, 1899-1900 |
| Box 16 Folder 3 | Misc. Notes, Items for Astronomical Journals and Popular Astronomy, 1893-1895 |
| Box 16 Folder 4 | Oppolzer Banhbessmerz, 1892 |
| Box 16 Folder 5 | Photographic Memoranda, Limit of 61/2’’ Reflector, J.A. Parkhursrt, undated |
| Box 16 Folder 6 | Rumford Fields 12 inch, 3, 1903-1905 |
| Box 16 Folder 7 | Rumford Work I, May 14th 1900 - May 6th 1905 |
| Box 16 Folder 8 | Rumford Work IV, August 1st 1905 - November 18th 1905 |
| Box 17 Folder 1 | Variables, Reductions, Bloodgood 4, undated |
| Box 17 Folder 2 | Wedge Constant II and IV, Pleiades and Wheel Photometer, December 10th 1903 - November 30th 1904 |
| Box 17 Folder 3 | Yerkes Observatory, 1896-1905 |
| Box 17 Folder 4 | 30 SS Cygni, 1899-1900 |
| Box 17 Folder 5 | 30 RJ Cygni, April 24th 1894 - June 23th 1906 |
Subseries 9: H. M. Reese |
| Box 18 Folder 1 | Spectrum Measurements, 1904 |
| Box 18 Folder 2 | Y.O. Spark Room, 1903 |
| Box 18 Folder 3 | Y.O. Spark Room; 1903-1905 |
Subseries 10: Frank E. Ross |
| Box 18 Folder 4 | Astrometry, 1931 |
| Box 18 Folder 5 | Blink, Vol. 1, 1924-1925 |
| Box 18 Folder 6 | Blink, Vol. 2, 1925-1926 |
| Box 18 Folder 7 | Blink, Vol. 3, 1926 |
| Box 18 Folder 8 | Blink, Vol. 4, 1926-1927 |
| Box 18 Folder 9 | Blink, Vol. 5, 1927-1928 |
| Box 19 Folder 1 | Blink, Vol. 6, 1928-1930 |
| Box 19 Folder 2 | Blink, Vol. 7, 1937 32 |
| Box 19 Folder 3 | Bruce 1, 1924-1925 |
| Box 19 Folder 4 | Bruce 3, 1928-1939 |
| Box 19 Folder 5 | Bruce 4, 1928-1929 |
| Box 19 Folder 6 | Bruce 5, 1930-1931 |
| Box 19 Folder 7 | Bruce 6, 1931-1932 |
| Box 19 Folder 8 | Bruce 7, 1932-1934 |
| Box 19 Folder 9 | Bruce 8, 1937 |
| Box 20 Folder 1 | Diameter of Venus, Mt. Nelson, 1927 |
| Box 20 Folder 2 | Lovell 13" PV, Photometry with T.E.P. 1932 |
| Box 20 Folder 3 | Magnitudes, 1926 |
| Box 20 Folder 4 | Microphotometer, 1925 |
| Box 20 Folder 5 | Photometric Color Camera, 1925 |
| Box 20 Folder 6 | Photometric, Ross 3" P&G, measures on T.E.D., 1933 |
| Box 20 Folder 7 | Stellar, Reduction Factor of Photometer, 1937 |
| Box 20 Folder 8 | Star Counts and Photometric Notes, 1927 |
| Box 20 Folder 9 | T.E.P. General Notes, 1932 |
| Box 20 Folder 10 | Venus, 1927 |
| Box 20 Folder 11 | Wright Effect or Decrease in Photographic Diameter of Mars in Infra Red, 1926 |
| Box 21 Folder 1 | W. Ross 5" T.E. Photometry, 1932 |
| Box 21 Folder 2 | Yerkes 3" PV, Photometry, 1933 |
| Box 21 Folder 3 | 5" W.A. Lens, 1929-1932 |
| Box 21 Folder 4 | 40" with Enlarging Camera, 1933 |
| Box 21 Folder 5 | 40" Notebook Rough, 1892 |
Subseries 11: Thornton Page |
| Box 21 Folder 6 | Record Book, Microphotometric Tracings,1940 |
| Box 21 Folder 7 | Observing Book I, June 1939 - September 1939 |
| Box 21 Folder 8 | Observing Book II, June 1939 - September 1939 |
| Box 21 Folder 9 | Photographs from Yerkes Logbooks, Observing Book 1, 1939-1940 |
Subseries 12: George A. Van Biesbroeck |
| Box 22 Folder 1 | 4, 82" Reflector,1943-1944 |
| Box 22 Folder 2 | 5, 82" Reflector,1944 |
| Box 22 Folder 3 | 6, 82" Reflector, 1944 |
| Box 22 Folder 4 | 7, 82" Reflector, 1944-1945 |
| Box 22 Folder 5 | 8, 82" Reflector, 1945-1946 |
| Box 22 Folder 6 | 9, 82" Reflector, 1946-1948 |
| Box 22 Folder 7 | 10, 82" Reflector, 1948 |
| Box 22 Folder 8 | 11, Texas, 1950-1951 |
| Box 22 Folder 9 | 12, Texas, 1951-1952 |
| Box 22 Folder 10 | 13, 82", 1952-1953 |
| Box 22 Folder 11 | 14, 82", 1953-1954 |
| Box 23 Folder 1 | 15, 1953-1954 |
| Box 23 Folder 2 | 16, Observing Book, 1954-1955 |
| Box 23 Folder 3 | 17, Observing Book, 1955-1956 |
| Box 23 Folder 4 | 19, Observing Book, 1957-1958 |
| Box 23 Folder 5 | 20, Observing Book, 1958-1959 |
| Box 23 Folder 6 | 21, Observing Book, 1959 |
| Box 23 Folder 7 | 22, Observing Book, 1959-1960 |
| Box 23 Folder 8 | 23, Observing Book, 1960-1961 |
| Box 23 Folder 9 | 24, Observing Book, 1961-1962 |
| Box 24 Folder 1 | Book I, 1915-1916 |
| Box 24 Folder 2 | Book II, 1916-1918 |
| Box 24 Folder 3 | Book III, 1918 |
| Box 24 Folder 4 | Book IV, 1918-1919 |
| Box 24 Folder 5 | Book V, 1919-1920 |
| Box 24 Folder 6 | Book VI, 1920 |
| Box 24 Folder 7 | Book 7, 1920-1921 |
| Box 24 Folder 8 | Book 8, 1921 |
| Box 25 Folder 1 | Book 9, 1921 |
| Box 25 Folder 2 | Book 10, 1921-1922 |
| Box 25 Folder 3 | Book 11, 1922 |
| Box 25 Folder 4 | Book 12, 1922 |
| Box 25 Folder 5 | Book 13, 1923 |
| Box 25 Folder 6 | Book 14, 1923-1924 |
| Box 25 Folder 7 | Book 15, 1924 |
| Box 25 Folder 8 | Book 16, 1924-1925 |
| Box 25 Folder 9 | Book 17, 1925-1926 |
| Box 25 Folder 10 | Book 18, 1926-1927 |
| Box 26 Folder 1 | Book 19, 1927-1928 |
| Box 26 Folder 2 | Book 20, 1928-1930 |
| Box 26 Folder 3 | Book 21, 1930-1932 |
| Box 26 Folder 4 | Book 22, 1932-1933 |
| Box 26 Folder 5 | Book 23, 1933-1934 |
| Box 26 Folder 6 | Book 24, 1915-1916 |
| Box 26 Folder 7 | Book 25, 1915-1916 |
| Box 26 Folder 8 | Book 26, 1915-1916 |
| Box 27 Folder 1 | Book 27, 1938-1939 |
| Box 27 Folder 2 | Book 28, 1939-1941 |
| Box 27 Folder 3 | Book 29, 1941-1943 |
| Box 27 Folder 4 | Book 30, 1943-1948 |
Series II: General |
| Box 27 Folder 5 | 2, Astronomical Observations, July 19th 1888 - May 19th 1890 |
| Box 27 Folder 6 | 3, Astronomical Observations, May 1890 - October 1890 |
| Box 27 Folder 7 | 4, Astronomical Observations, November 1890 - December 1891 |
| Box 28 Folder 1 | 9, Results of Latitude Determination from Zenith Telescope from Wisconsin Line, December 5th 1889 - April 1890 |
| Box 28 Folder 2 | 10 1891-1892 |
| Box 28 Folder 3 | 10, Transit, December 28th 1891 - July 29 - 1897 |
| Box 28 Folder 4 | 11, Variables, May 16th 1893 - 1896 |
| Box 28 Folder 5 | 13, Micrometer, April 19th 1895 - June 27th 1896 |
| Box 28 Folder 6 | 104 Short Period Variables Photographic, 1904-1905 |
| Box 28 Folder 7 | 12’’ Telescope, Moon, Clusters, Asteroids, 1903-1934 |
| Box 28 Folder 8 | 24" inch Reflector, Star Colors from Disk Diameters, 1905 and Spurge Sensitometer, 1912 |
| Box 29 Folder 1 | 40" Observing Parallax Camera, 1938-1939 |
| Box 29 Folder 2 | 82" Reflector, 3, 1943 |
| Box 29 Folder 3 | Air, 1898 |
| Box 29 Folder 4 | Astronomical Lectures, undated |
| Box 29 Folder 5 | Comets and Double Stars, Leavenworth F.P., July-September, 1914 |
| Box 29 Folder 6 | Direct Photographs of the Sun, Moving Picture Camera on 40 inch, 1935-1940 |
| Box 29 Folder 7 | Direct Photography of Aurora, 1959 |
| Box 30 Folder 1 | Direct Solar Photographs with the 40 inch, 1933-1946 |
| Box 30 Folder 2 | Double Stars, Leavenworth F.P., June-September, 1916 |
| Box 30 Folder 3 | Double Stars, Leavenworth F.P., September-October, 1914 |
| Box 30 Folder 4 | Double Star Photographs, 40" Refractor with D.S. Camera, undated |
| Box 30 Folder 5 | Double Star Program, 1968 |
| Box 30 Folder 6 | E1, Measures of Stellar Spectra, George E. Hale, Observer: Hale George E., undated |
| Box 30 Folder 7 | E2, Measurements and Reductions of Photographs of IV Type Spectra and of Photographs of the Spectrum of the Iron Spark Taken with the Concam Granig, Observer: Hale George E., undated |
| Box 31 Folder 1 | E3, Measurements of Stellar Spectra, Observer: Hale George E., undated |
| Box 31 Folder 2 | E4, Measures, Observer: Hale George E., undated |
| Box 31 Folder 3 | E5 Measures of IV Type Stellar Spectra, Observer: Ellerman Ferdinand, undated |
| Box 31 Folder 4 | E6 Measures of IV Type Spectra, Observer: Ellerman Ferdinand, undated |
| Box 31 Folder 5 | Enlarging Camera for 40 inch, 1926-1928 |
| Box 31 Folder 6 | Errors of Comparator Scale, undated |
| Box 32 Folder 1 | Express and Freight, 1908-1926 |
| Box 32 Folder 2 | Fabry Photometer 40 inches, 1935-1940 |
| Box 32 Folder 3 | Fuess Spectrometer, 1911 |
| Box 32 Folder 4 | Grating, 1911 |
| Box 32 Folder 5 | Greenstein-Henyey Camera, 1957-1960 |
| Box 32 Folder 6 | Hartmann Reduction Curves, Seed 27, Cramer Trichromatic, undated |
| Box 33 Folder 1 | HCO Objective Prism on 12 inch/ Reflector Quartz Spectograph, 1901-1905, Reflector Quartz Spectrograph May 8th 1905 |
| Box 33 Folder 2 | Index, Measures Commencing, 1906 |
| Box 33 Folder 3 | Infrared, March, 1924 |
| Box 33 Folder 4 | Journal, 1904 |
| Box 33 Folder 5 | Lamps for Hartmann, J.A. Parkhurst, Eclipse, Sept. 10, 1923 |
| Box 33 Folder 6 | Lemon-Brace, 1921 |
| Box 33 Folder 7 | Lemon-Brace Spectrophotometer and Hess-Ives Tint Photometer, July, 1920 |
| Box 33 Folder 8 | List of Plates, undated |
| Box 33 Folder 9 | Logbook for 16 mm, Wide Angle Camera, 1952-1956 |
| Box 33 Folder 10 | Loose Pages from Logbook: Fuess Spectrometer, 1911 |
| Box 33 Folder 11 | Loose Pages from Logbook: Scale Error Determinations of Zriss Comparator, 1899 |
| Box 34 Folder 1 | Magnetometer, Record, 1958-1960 |
| Box 34 Folder 2 | Measures of Double Stars, Photographs, 1925 |
| Box 34 Folder 3 | Measures of Nova Persei, 1901 |
| Box 34 Folder 4 | Measures of Sun Spots on Ey & Edf Plates, 1928-1932 |
| Box 34 Folder 5 | Meteorological Observations, 1901-1902 |
| Box 34 Folder 6 | Meteorological Observations, 1898-1901 |
| Box 34 Folder 7 | Micrometer Results 3, 1900 |
| Box 34 Folder 8 | Milky Way, 1953 |
| Box 35 Folder 1 | Negatives with UV Camera, I, Observer: J.A. Parkhurst J.A., December 26th 1905 to January 25th 1915 |
| Box 35 Folder 2 | Negatives with the UV Camera, II, 1905-1927 |
| Box 35 Folder 3 | Negatives with the UV Camera, III, 1928 - 1930 |
| Box 35 Folder 4 | Negatives with the UV Camera, IV, 1935 |
| Box 35 Folder 5 | Notes on Photographs of Swifts (1892), Brooks (1893), Gales (1894) |
| Box 35 Folder 6 | Objective Prism, OP - UV Camera, 1933-1936 |
| Box 36 Folder 1 | Observing Book, 1950 |
| Box 36 Folder 2 | Observing Book, 32, 1949-1950 |
| Box 36 Folder 3 | Observing Book, 35, 1949-1950 |
| Box 36 Folder 4 | Parallax Series K, Plates 1, February 1906 - July 1906 |
| Box 36 Folder 5 | Patrol Cameras, 1956 - 1957 |
| Box 36 Folder 6 | Personal Account, George E. Hale, Edwin Frost, 1900-1916 |
| Box 36 Folder 7 | Photographs from Yerkes Logbook: The Milky Way, 1953 |
| Box 36 Folder 8 | Photographic Photometry, 101, March 1st 1904 - January 26th 1906 |
| Box 37 Folder 1 | Photometer 4, 1900-1902 |
| Box 37 Folder 2 | Photometry, 3" Twin Lenses, 1930 |
| Box 37 Folder 3 | Plate Book, 109, 1909-1922 |
| Box 37 Folder 4 | Prime Focus Camera I, 82", 1939-1941 |
| Box 37 Folder 5 | Prime Focus Camera II, 82", 1941-1942 |
| Box 37 Folder 6 | Pocket Notebooks, 1926-1928 |
| Box 37 Folder 7 | Record of Prominences with the "Scout," 1922-1925 |
| Box 38 Folder 1 | Record of Temperature in Standard Shelter, 1917-1921 |
| Box 38 Folder 2 | Record of Temperature in Standard Shelter, 1922-1925 |
| Box 38 Folder 3 | Reduction Tables for Marengo Observatory, undated |
| Box 38 Folder 4 | Reflector Notebook, 1920 |
| Box 38 Folder 5 | I, Reflector Plates, Plates 1- 2039, 1922-1926 |
| Box 38 Folder 6 | II, Reflector Plates, No. 2040-3999, 1927-1931 |
| Box 39 Folder 1 | III, Reflector Plates, No. No. 4000-6200, 1931 |
| Box 39 Folder 2 | IV, Reflector Plates, No. No. 6201-8301 |
| Box 39 Folder 3 | V, Reflector Plates, 1919-1920 |
| Box 39 Folder 4 | Rolls Yerkes I, Roll No. 3351-3375, July 1, 1957-January 2, 1958 |
| Box 39 Folder 5 | Rolls Yerkes II, Roll No. 3376-3400, January 3, 1958- July 8, 1958 |
| Box 39 Folder 6 | Rolls Yerkes III, Roll No. 3401-3425, July 10, 1958- January 2, 1959 |
| Box 39 Folder 7 | Rolls Yerkes IV, Roll No. 2276-2300, January 3, 1959- June 3, 1959 |
| Box 39 Folder 8 | Rolls Yerkes V, Roll No. 4751-4775, June 4, 1959- November 27, 1959 |
| Box 39 Folder 9 | Rolls Yerkes VI, Roll No. 4776-4800, November 28, 1959- April 1, 1960 |
| Box 39 Folder 10 | Rolls Yerkes VII, Roll No. 2926-2950, April 2, 1960- October 6, 1960 |
| Box 40 Folder 1 | Rolls Yerkes VIII, Roll No. 5551-5575, October 7, 1960- March 3, 1961 |
| Box 40 Folder 2 | Rolls Yerkes IX, Roll No. 5576-5600, 1961 |
| Box 40 Folder 3 | Rolls, 2 All-Sky Camera Logs, Blank, undated |
| Box 40 Folder 4 | Rolls, Completed Patrol Spectrograph Log Forms, 1960-1961 |
| Box 40 Folder 5 | Rolls, Patrol Spectrograph Logs, Blank, undated |
| Box 40 Folder 6 | Rolls, Records, undated |
| Box 40 Folder 7 | Rolls, Shingleton I, 1957 |
| Box 40 Folder 8 | Rolls, Shingleton II, 1958 |
| Box 40 Folder 9 | Rolls, Shingleton III, 1958 |
| Box 40 Folder 10 | Rolls, Shingleton IV, 1959 |
| Box 40 Folder 11 | Rolls, Shingleton V, 1959 |
| Box 41 Folder 1 | RS Series, Slitless Spectrograph on 24 inch Reflector, 1940-1941 |
| Box 41 Folder 2 | Screw Errors Carnagie-Gaertner Machine, Parkhurst-Short, 1914-1915 |
| Box 41 Folder 3 | Series OP: Negatives with objective Prism, 1906-1918 |
| Box 41 Folder 4 | Series R, Book IV a Series R, Reflector, Series R5269-5435, Observer: P.C. Keenan, 1932-1935 |
| Box 41 Folder 5 | Series R, Book IV b Series R, 24’’ Dome, Styfert Kuiper, 1936 -1937 |
| Box 41 Folder 6 | Sector Spectral Sens, Iteney Calibration, 1942 |
| Box 42 Folder 1 | Shingleton All-Sky Camera Records, 1957 |
| Box 42 Folder 2 | Shingleton G-H, 1953-1954 |
| Box 42 Folder 3 | Solar Negatives, Series Σ df, 1902-1932 |
| Box 42 Folder 4 | Solar Negatives, Series Σ s I, 1899-1906 |
| Box 42 Folder 5 | Solar Negatives, Series Σ s II, 1906-1910 |
| Box 43 Folder 1 | Solar Negatives, Σs III, 1911-1919 |
| Box 43 Folder 2 | Solar Negatives, Σs IV, 1919-1932 |
| Box 43 Folder 3 | Solar Negatives, Miscellaneous, Σs Σd Σss ΣL Σdb, 1905-1925 |
| Box 43 Folder 4 | Spectrograph, 12" Stellar Spectra, 1930 |
| Box 44 Folder 1 | Solar Spectra 40" Telescope, Σp, 1930-1935 |
| Box 44 Folder 2 | Spectroheliograph, Book, Σs 109830-11502, January 23rd 1933 -September 24th, 1935 |
| Box 44 Folder 3 | Spectrohelioscope, Book 2, 1929-1930 |
| Box 44 Folder 4 | Spectrohelioscope, Book 3, Nov. 19th 1930 to July 7th, 1931 |
| Box 44 Folder 5 | Spectrohelioscope, Book 4, 1931-1932 |
| Box 44 Folder 6 | Spectrohelioscope, Book 5, Observer: P.C. Keenan February 3, 1932- August 10, 1932 |
| Box 44 Folder 7 | Spectrohelioscope, Book 6, August 13, 1932- January 23, 1933 |
| Box 45 Folder 1 | Spectrohelioscope, Book 7, January 24, 1933- August 21, 1933 |
| Box 45 Folder 2 | Spectrohelioscope, Book 8, August 22, 1933- May 14, 1934 |
| Box 45 Folder 3 | Spectrohelioscope, Book 9, May 15, 1934- October 19, 1934 |
| Box 45 Folder 4 | Spectrohelioscope, Book 10, October 22, 1934- July 22, 1935 |
| Box 45 Folder 5 | Spectrohelioscope, Measures of Prominences, ΣHα - Films - Spectrohelioscopic, 1934 |
| Box 45 Folder 6 | Spectroscope, 12", Observer: W.W. Morgan, 1928-1929 |
| Box 45 Folder 7 | Speed of Plates Sector Machine, 1909-1924 |
| Box 46 Folder 1 | Schlesinger Frank, Notebook, 1900 |
| Box 46 Folder 2 | Standard Diary, 1896 |
| Box 46 Folder 3 | Sun Spots, October 1928 and Sun Spot Calculations for March, 1931 |
| Box 46 Folder 4 | Sun Spots, Reductions of Postion of Spots Measured on 12’’ Plates, 1927 |
| Box 46 Folder 5 | The Pup, Sky Patrol, 1916-1928 |
| Box 46 Folder 6 | The Pup, Preliminary Notebook for the Pup, 1916-1917 |
| Box 47 Folder 1 | Transit Corridor, Weather Records, 1920-1921 |
| Box 47 Folder 2 | Transit Corridor, Weather Records, 1922-1923 |
| Box 47 Folder 3 | Transit Corridor, Weather Records, 1924-1925 |
| Box 47 Folder 4 | Transit Corridor, Weather Records, 1926-1927 |
| Box 47 Folder 5 | Transit Corridor, Weather Records, 1928-1929 |
| Box 47 Folder 6 | Transit Corridor, Weather Records, 1930-1931 |
| Box 47 Folder 7 | Transit Corridor, Weather Records, 1932-1933 |
| Box 48 Folder 1 | Tracings, Photometer, 1935-1938 |
| Box 48 Folder 2 | Transit Instrument, Star Constants of the Berlines Jahrbuch Stars, 1900 |
| Box 48 Folder 3 | Trial and Solar Plates, Bruce Spectrograph, 1901-1906 |
| Box 48 Folder 4 | TV Series, 4’’X5’’ Plates Taken with the Bruce, September 1933 - September 1940 |
| Box 48 Folder 5 | TV Series: Tikhov Plates with the Bruce Telescope, February 25th 1937 - August 17th 1952 |
| Box 48 Folder 6 | Type IV, Catalogue of λs, undated |
| Box 48 Folder 7 | Type IV, Identifications 2, 1900-1901 |
| Box 49 Folder 1 | Ultraviolet Extrafocal, Miscellany 106, Density Reading of Wedge p. 90, 1906 |
| Box 49 Folder 2 | USAF Wide Angle Patrol Camera, Cusino Wildlife Experiment Station, Shingleton, Michigan, 1953-1954 |
| Box 49 Folder 3 | UV Series No. 3, Popper Series: Texas: March 1940, August, 1942 Yerkes: July, 1946 |
| Box 49 Folder 4 | Wallace Spectroscope, Halley, 1910-1922 |
| Box 49 Folder 5 | Weather Record, 1903-1904 |
| Box 49 Folder 6 | Weather Record, 1905-1906 |
| Box 50 Folder 1 | Weather Record, 1907-1908 |
| Box 50 Folder 2 | Weather Record, 1909-1910 |
| Box 50 Folder 3 | Weather Record, 1911-1912 |
| Box 50 Folder 4 | Weather Record, 1913-1914 |
| Box 50 Folder 5 | Weather Record, 1915-1916 |
| Box 50 Folder 6 | Weather Record, 1917-1918 |
| Box 51 Folder 1 | Weather Record, 1919-1920 |
| Box 51 Folder 2 | Yerkes B Spectrograph Galactic Emission Regions and Nebulae, H.M. Johnson, 1951-1953 |
| Box 51 Folder 3 | Yerkes Magnetometer Record, 1958-1960 |
| Box 51 Folder 4 | µ Classification, 1894-1905 |
| Box 51 Folder 5 | µ Perse, 1892 - 1904 |
| Box 51 Folder 6 | Untitled Chart, undated |
| Box 51 Folder 7 | Untitled, Logbook, 1895-1900 |
| Box 51 Folder 8 | Untitled, Notebook, undated |
| Box 52 Folder 1 | Untitled, 2 Untitled Ledger Notebooks, undated |
| Box 52 Folder 2 | Larger Untitled Notebook, undated |
| Box 52 Folder 3 | Larger Untitled Notebook, undated |
| Box 53 Folder 1 | Untitled, Large Binder Notebook, undated |