At the meeting of the Astronomical and Physical Society of 1896 March 3, Mr. George E. Lumsden proposed putting a number of bromide sheets under the tube. Several radiographs were thus taken at once. See TAPST 1896, p.7.
Check out what's up in the sky this week, courtesy of our friends at SkyNews.
© 2014 The Royal Astronomical Society of Canada
The internet connection for this site is provided courtesy the Department of Astronomy and Physics at Saint Mary's University.