29 



the laws protecting fish and game. " We have generally had 

 hearty and generous co-operation," he said. " In Eaton 

 County four prominent citizens were convicted of violating the 

 laws, despite the fact that the evidence was not conclusive, and 

 they were given the full penalty of the law. In the County of 

 Clare we were given the greatest opposition. A deputy came 

 upon a man spearing fish. The violator refused to submit to 

 arrest. The deputy lugged him off eight miles to a justice, 

 where he was speedily acquitted. The work of enforcing the 

 laws has been studiously carried on. The people demand their 

 execution and the results are gratifying to all." 



THE PROPAGATION OF NATURAL FOOD FOR 



FISH, WITH SPECIAL REFERENCE 



TO FISH-CULTURE. 



BY M. E. O'BRIEN. 



The subject "natural food offish " is one that has received 

 but meagre attention from the older naturalists, and our 

 knowledge regarding this most important factor in fish-culture 

 is but in its infancy, merely a passing glance having been 

 bestowed on it by both naturalists and fish-culturists of the 

 present day. Undoubtedly much good work has been done 

 within the last five years towards investigating the food of the 

 various species of marine food-fish, the result of examinations 

 made on fish caught by steam trawlers and line boats ; but in 

 reference to fresh-water species, migratory and non-migratory, 

 as far as I am aware, little effort has been made in this 

 direction. 



The present system of aiding the growth and development 

 of fish by supplying them with various kinds of artificial foods, 

 such as liver, coagulated blood, vegetables, etc., may produce 

 results of a kind, but it is a system open to many objections. 



First — It is unnatural. 



Second — It has a tendency to render the water putrid, and 

 consequently injurious to fish. 



Third — It favors the introduction of disease. 



