The Practical Astronomer, by Thomas Dick 54420 [Subtitle: Comprising illustrations of light and colours--practical descriptions of all kinds of telescopes--etc, etc.] [Link: http://www.gutenberg.org/5/4/4/2/54420 ] [Files: ; 54420-0.txt; 54420-h.htm] Thanks to Chris Curnow, Wayne Hammond and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) Regards, Al