TABLE OF CONTENTS. 



A.— INTRODUCTION. 



Historical sketch of fish- culture in the United States 5 



B.— INVESTIGATION.* 

 I.— Commissions and societies engaged in the investigation of 



QUESTIONS RELATING TO FISH-CULTURE. 



1. Portraits and photographs of prominent fish-culturists 20 



United States Fish Commissioner 20 



State fish commissioners 20 



Members of American Fish-Cultural Association 21 



Private fish-culturists 22 



II. — Results of inquiry. 



"2. Publications - 22 



Publications of the U.S. Fish Commission 22 



Publications of the State fish commissions 26 



Publications of the American Fish-Cultural Association 36 



Publications of private fish-culturists .". 37 



3. Collections •. 37 



Spermaries and ovaries of important food-fishes, illustrating the time 



and place of spawning 37 



C— PROTECTION. 



III. — Legislation. 



4. Fishery laws 47 



IV.— Assistance to fish in reaching their spawning-grounds. 



5. Fish-ways or ladders 47 



Pool fish-ways 47 



Chute or trough fish-ways 48 



Deflected current fish-ways 49 



Counter-current fish-ways 52 



V. — Purification of streams. 



6. Cleansing residuum from manufacturing establishments, &c 53 



*For apparatus employed in scientific research see Sec. G. 

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