rected main- conspicuous ones, it is necessary to submit the photo- so as to illuminate the particular circle required. ly from his designs and it was the first observatory graphic plate to their feeble rays for a prolonged New slow motions have been designed, and in some to be equipped with the… … the counterbalancing weights move up and in the great 7%-inch heliometer, which was NEW EQUATORIAL TELESCOPE AT BADCLIFFE OBSERVATORY, OXFOBD, ENO,
Patents · Machine · Railroad · Naval · Nickel plate · Scientific American · American supplement · Tire wheel · Horse power · Park avenue · Wireless telegraphy · Basket machine · Trade marks · York central
Internet Archive · Public domain (published before 1931). Free to use for anything.
