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Joint Meeting of Commissions 8, 23, 24, 25, 27, 28, 29, 30, 32 and 33 for a Discussion on Galactic Structure

Published online by Cambridge University Press:  25 April 2016

B. J. Bok

Abstract

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Type
Part IV Meetings of Commissions
Information
Transactions of the International Astronomical Union , Volume 6 , 1939 , pp. 446 - 461
Copyright
Copyright © International Astronomical Union 1976 1939

References

page no 452 note * Meanwhile the Agfa has put on the market red-sensitive emulsions of similar speed, of which the Superpan Press film should be mentioned especially because it combines extreme speed in the red and blue with a remarkably fine grain.