T.L.A. 



Price $12.50 



The LOWER ANIMALS 



Living Invertebrates of the World 



By Raljih Biiclisi)auin and Loriis J. Milne 

 in collaboration with Mildred Buchsbaum and 

 Margery Milne 



With 315 illustraticms, including 144 

 ill full color 



XwO outstanding teams of scientists here draw on 

 their rich experience for a fascinating review of the 

 lower groups of the Animal Kingdom. Together, the 

 text and pictures form an unsurpassed introduction 

 to the life of land and water, the creatures of beach 

 drift, tidal pool and open sea, and the organisms in 

 living tissue. 



Although generally less familiar than such other 

 groups as mammals and birds, the invertebrates, that 

 is, animals without a spinal column, are by far the 

 most diverse. Thus this book ranges from the micro- 

 scopic radiolarians and other one-celled organisms 

 to the giant squids that do battle with whales, from 

 the spider on the highest mountains to the sea 

 cucumber of the deepest seas. Both text and illustra- 

 tions present an extraordinary variety of living 

 things: coral animals that build South Sea atolls, 

 poisonous jellyfishes (as well as harmless ones), the 

 earthworms and clam worms that fishermen fancy, 

 the beauty of mollusk shells that delight the beach- 

 combers, the scallops, snails, crabs and lobsters 

 prized by gourmets, and those curious creatures that 

 have become "living fossils." There are few more 

 arresting stories than that of the cuttlefish that es- 

 cape from enemies by emitting an inky cloud, the 

 sea worms that swim in a water ballet at the dark 

 of the moon, or the great clams that raise plants as 

 food in special "greenhouses." 



As in earlier books in this series, the text is illus- 

 trated with a matchless collection of 292 photographs 

 (and 23 drawings) from all over the world. 



THE AUTHORS 



Ralph Buchsbaum is Professor of Zoology at the 

 University of Pittsburgh and author of the widely 

 used textbook, Aninuils wiihout Backbones. His 

 wife is also a zoologist and has worked with him in 

 researches in America, Europe and Southeast Asia. 



Lorus J. Milne, Professor of Zoology at the Uni- 

 versity of New Hampshire, and his wife Dr. Margery 

 Milne have investigated the role of vision in inverte- 

 brates in North, Central and South America and in 

 Africa. Together they have written many books, in- 

 cluding The World of Night, Paths Across the Earth, 

 and a popular textbook. The Biotic World and Man. 



Jacket design based on a 

 photograph by ALLEN KE A ST 



