5 good reasons for joining the 
Natural Science Book Club 
I 
* P S» 
Fifib Ed«i» D 
1. Van Nostrand’s Scientific Encyclopedia 
Edited by Douglas M. Considine. Nearly 200 experts have contributed to this thor- 
oughly revised and greatly expanded fifth edition of the most authoritative single- 
volumesourceofscientificknowledgeever assembled. Enormous9' i" x 12" volume 
contains 2.2 million words, 2382 pages, 2500 photographs, draw ings, and charts, and 
500 tables. 7200 articles cover everything from the earth and space sciences to energy 
technology, from the life sciences to mathematics, from the information sciences to 
physics and chemistry. “. . . an amazing book . . . for both the general and scientific 
reader .” — The New York Times. Publishers' Price $69.50 
2. Archaeology Library 
Two extensively illustrated volumes provide a panoramic overview of ancient cul- 
tures. The Cambridge Encyclopedia of Archaeology — an oversized reference with 
more than 400 photos, drawings, maps, and plans. Includes writings by 55 experts. 
Discovery of Lost Worlds— the major archaeological finds of the past 300 years 
recreated in the writings of well-known scholars. Beautifully illustrated. Publishers' 
Price $69.90 
• Basic Astronomy Library 
hour books that w ill prov ide you with a basic, well-rounded library. Start with Cata- 
logue of the Universe. Three-volumes-in-one: an atlas, encyclopedia and book of 
descriptive astronomy. Surveys over 220 astronomical objects. More than 300 photo- 
graphs. Black Holes: The Edge of Space, The End of Time. Whitney's Star Finder 
enables you to identify every major star in the sky over North America. The Illustra- 
ted Encyclopedia of Astronomy and Space contains over 1000 entries and 150 pho- 
tographs and illustrations. Publishers' Price $60.80 
