Astronomy and Astrophysics – Astronomy
Scientist
Astronomy and Astrophysics
Astronomy
Scientist
A new micrometer machine for measuring photographic films of meridian circle division marks.
An Interesting Sun-dial (with Plate IV)
Canadian Scientists Report (III. Time Changes Old and New
Photographic Registration of Circle Settings with the Ottawa Meridian Circle Telescope (with Plates VII to IX)
PROBLEMS IN ASTROMETRY: Position astronomy at Dominion Observatory, Ottawa, Canada
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