Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Additional Formats
[Alvin S. Haag; Bill Hale; George Hall {incl copy memo Byron Hill to GH}; L. A. Hall; Leita Harmon; Guillermo Haro; John W. Harrington; Leonard Harrison; Teiho Hashida; Takeo Hatanaka; Otto Heckmann; Barklie Henry {incl copy ltr BH to Walter S. Gifford; ltr PAS to BH; copy ltr BH to PAS}; George H. Herbig]
Bowen
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Additional Formats
[Byron Hill {incl c.ltr Photo Lab (Mt. Wilson) to BH}; W. A. Hiltner; Erik Holmberg; Robert E. Holzer; Edwin P. Hubble; C. M. Huffer; M. L. Humason; J. Allen Hynek {incl ltr PWMerrill to JAH}]
Bowen
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Additional Formats
[Joseph Herczegh {incl ltr Joseph Lassanyi to ISB; ltr ISB to JLassanyi}; Hilger & Watts, Ltd. {J. W. Perry}; Byron Hill; Erik Holmberg; Alice W. Hood; A. van Hoof {icl ltr Louise Lowen to AvH; copy ms "On a Possibility to Resolve Spectroscopically Several Spectroscopic Binaries," by AvH}; Edwin E. Hudson; Ernest B. Hugg; H. C. van de Hulst {incl copy ltr Robert F. Bacher to HCvdH}; Milton L. Humason; Muhammad Hus-ain {folded}; Viola Hutchinson]
Bowen
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Additional Formats
[Josephine W. Herrick; Byron Hill {incl memo BH to JMiller; ltr Robert F. Heilbron to BH; ltr ISB to RFHeilbron}; W. A. Hiltner; Yasuji Hirota; Arthur A. Hoag; C. Hoffmeister; W. L. Holladay; J. Houtgast {c.ltr MMinnaert to ISB}; Eskil Hultin; J. Allen Hynek {incl c.ltr JAH to Lubos Perek}]
Bowen
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Additional Formats
[John S. Hall {c.ltr JSH to John Irwin}; Robert Hardie {c.ltr WABaum to RH}; Emerson Hartong {ltr of passage ISB}; Sherwood K. Haynes; John F. Heard {folded}; George H. Herbig; Byron Hill {incl ltr MtWilson & Palomar staff to ISB}; W. A. Hiltner {c.ltrs BHRule to WAH}; W. G. Hingston; Arthur R. Hogg; Holiday {Carl L. Biemiller}; Erik Holmberg; Ralston Holmes; J. Hopmann; Fred Hoyle; Edwin P. Hubble; C. M. Huffer; Milton L. Humason]
Bowen
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Additional Formats
[Ernest J. Valley; Robert Valverde {incl 1 ltr Evan V. Shute to ISB}; E. H. Vestine; A. N. Vyssotsky {incl 1 copy ltr ANV to V.Bush; 1 ltr ISB to PAS}
Bowen