ONE DRAWBACK TO THE SHEEP INDUSTRY 



Dogs have always been an enemy of sheep, and have made the industry unprofitable in 

 many regions. But with the present "boom" in sheep breeding, many States are trying 

 to end this nuisance. Illinois now gives the farmer the right to shoot any dog he finds on 

 his land without asking any questions. With extension of such legislation, scenes like the 

 above, showing the result of a night's carnival by the neighbor's dogs, will no longer be 

 possible. Photograph from the U. S. Department of Agriculture. (Fig. 6.) 



much more costly, men will not buy 

 new suits so frequently, and the clothing 

 industry will, therefore, suffer. 



Besides the clothiers, so many other 

 interests will be benefited by a more 



widespread sheep industry, that a 

 "boom" is not surprising. If it is 

 guided wisely, it should make the sheep 

 as much a feature of mixed farming as 

 is the cow, pig, or hen. 



Studies in Animal Behavior 



STUDIES IN ANIMAL BEHAVIOR, by 

 S. J. Holmes, Ph.D., associate professor of 

 zoology, University of California. Pp. 266. 

 Boston, Richard G. Badger Co., 1916. 



The manifestations of instinct and 

 intelligence in animals have a wide- 

 spread interest, but popular accounts 

 are likely to be highly unscientific; 

 and this is even more true of popular 

 accounts of the evolution of intelligence. 

 So scholarly and readable a volimie as 

 that of Dr. Holmes is therefore of 

 particular value. He surveys a wide 



field, from detailed studies of tropisms 

 to the evolution of parental care, the 

 recognition of sex, and "the mind of a 

 monkey." Instinct is universal among 

 animals but intelHgence, which he de- 

 fines as "the power of forming associa- 

 tions, or associative memory" has its 

 beginnings very far down in the scale, 

 and is a development of instinct. _ No 

 matter how much developed the intel- 

 ligence is, instinct still furnishes the 

 fundamental springs of action, even in 

 man. 



393 



