Publications of the Dominion Observatory, Ottawa, Volume 5

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Department of Energy, Mines and Resources, Observatories Branch., 1922 - Astronomy
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A Speotrographic Study of Early Class B Stars by F Henroteau Ph D and J P Henderson M A
The Effect of Cooling on a Cement Pier by Ernest A Hodgson M A
A Spectrographic Study of Early Class B Stars Second Paper by F Henroteau Ph D

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