(Continued from front flap) 



Earthworm and Its Environment," includ 

 the earthworm in nature and in scient 

 literature. Part II presents "The Ear 

 worm Under Control," revealing the me 

 ods which have enabled the author to t 

 a barren desert hillside into a luxuriant p; 

 disc. The photographs, charts, diagra 

 and working drawings are valuable aids 



". . . . the directions for culture and 

 on either small or large scale, are spec 

 and concise." American Library Asso, 

 tion Booklist. 



ABOUT THE AUTHOR 



Thomas J. Barrett was born in Coll 

 Grove, Tennessee, in 1884. Educated 

 Ruskin University, Northwestern Acadei 

 American College of Osteopathic Medic 

 and Surgery, and Chicago College of Mi 

 cine and Surgery, he has been physic 

 printer, reporter, editor, soldier, and : 

 lance news photographer in Canada, Mex 

 and the United States. Trained for map 

 production in the field he served throi 

 World War I with the lllth United St; 

 Engineers. In 1936 he began earthworm ; 

 soil-building research, establishing "Ear 

 master Farms," Roscoe, Calif., as an exp 

 mental center. He spent nearly 3 years ; 

 laboratory assistant in plant physiology 

 California Institute of Technology. He 

 contributor to Magazine Digest, Encyt 

 [n'dia Britannica, Jr., and other publicatic 

 He is the author of Eartbivorms: Their 

 tensive Propagation and Use in Biolog 

 Soil -Build ing, The Pruning Knife, 

 other scientific and popular writings. I 

 ture articles about "Earthmaster Farn 

 with pictures, have appeared in many le 

 ing newspapers and magazines through 

 the world. 



