Additional Formats
Achromat Corrector
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Planetary Achromat
Additional Formats
[Incl c.ltr BHRule to Gordon Wares; ltr Robert L. Milkis to ISB; c.ltr WABaum to Max Bray; ltr WABaum to ISB; memo "Preliminary Tests on New Color-Correcting Lens for 24-Inch Lowell Refractor," by WABaum]
Bowen
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Wynne Spectrograph
Additional Formats
[Incl ltr C. C. Wheeler {Perkin-Elmer} to ISB. folded]
Bowen
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H -- MISCELLANEOUS (Holmberg-Hulburt) [26]
Additional Formats
[Erik Holmberg {incl note EPHubble to ISB}; C. H. Holton; Robert E. Holzer; Edwin P. Hubble; C. M. Huffer {incl c.ltr CMH to NUMayall}; Edward O. Hulburt]
Bowen
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P -- MISCELLANEOUS [39]
Additional Formats
[J. L. Pawsey; Cecilia Payne-Gaposchkin; Richard S. Perkin {ltr RSP to DOHendrix; note DOHendrix to ISB}; R. M. Petrie; Ivan Peyches {incl ltr Eugene C. Sullivan (Corning) to ISB; ltr Ed. Condon to ISB}; John G. Phillips; Philosophical Library {Robert E. Pike; Ralph B. Winn}; H. H. Plaskett {incl c.ltr HWBabcock to HHP}; L. Plaut; Harry E. D. Pollock; Daniel M. Popper; Lloyd C. Pray; Nathan M. Pusey {re Harvard College Observatory directorship. Incl ltrs McGeorge Bundy to ISB]
Bowen
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X, Y, Z -- MISCELLANEOUS [44]
Additional Formats
[J. P. Yountz; Fritz Zwicky {incl c.ltr FZ to VBush; ltr ISB to VBush; c.ltr VBush to FZ; 4 ltrs VBush to ISB; general memo from APogo; note LAD to ISB; c.2 ltrs FZ to SBNicholson; c.2 ltrs FZ to LAD; c.ltr SBNicholson to FZ}]
Bowen