Philosophical transactions of the Royal Society of London (1666)
Royal Society (Great Britain), United States. Patent Office. Scientific Library, former owner. DSI · London : Royal Society of London · leaf 366
/sw.-,_/W Mlin-c/teX/,. … of the prismatic Colours to heat and illuminate Objects. 283 communicated, the glasses have met with no accident. How-ever, when the sun is at a considerable altitude, it will beadvisable to lessen the aperture a little, in telescopes that haveso much light as my 10-feet reflector; or, which will…
Science
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
