"A review of astronomy" (varies).

DigiCat Publishing presents to you this special edition of "Telescopic Work for Starlight Evenings" by William F. Denning. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.