CONTENTS. 



Page. 



17. Comparative vai.ce of different groups of food-fishes xsxv 



Of resident species xxsv 



Liinitatiou by necessity of feeding xxxvi 



Black bass xxxvi 



Of anadromous or migratory species xxxviii 



No feeding required xxxix 



Shad, herring or alewives, and salmon xxxviii 



Of catadromous species xxxix 



The eel xxxix 



Iv. Different methods of multiplying fish xl 



Transfer of living fisli from one locality to another xl 



Confining fishes in particular localities for natural spawning xli 



Collecting eggs and embryos natui'ally spawned xli 



Artificial impregnation and hatching of eggs xlii 



Different methods of securing the parents xlii 



Catching while on spawning-beds xlii 



Penning-up on spawning-beds, (Wilmot's method) xliii 



Transferring to temporary iuclosures, ( Atkins's method) xliii 



Impregnation of the eggs xlii 



Hatching out of the young fish xliii 



Disposal of the young fish in stocking waters xliv 



Anadromous fish always return to place of birth or deposit xliv 



Influence of obstructions xliv 



19. Treatment of certain species xlv 



Hatching of shad xlv 



Hatching-boxes xlv 



Hatching of white-fish, trout, salmon, &c xlvi 



Holton's tray xlvii 



Hatching of striped bass xlvii 



20. Fishes especially worthy of multiplication xlviii 



1. The shad xlviii 



Distribution xlviii 



Migration and movements xlviii 



Early abundance xlviii 



Subsequent decrease li 



Influence of dams, gratings, &c li 



Dr. Yarrow's report lii 



Artificial increase lii 



Labors of Dr. Daniel in 1848, (transfer of eggs to the Alabama River) Hi 



Labors of Mr. Gesner and others in 1858, (transfer of eggs and young to the Ala- 

 bama River) lii 



"Work of Seth Green in 1867 liii 



Action of the Xew England and other States liii 



Action on the part of the United States Government li v 



Suggested by the American Fish Culturists' Association liv 



Intended to siipplement action of other States liv 



Possibility of stocking the Mis.sissippi 8y.stem of waters with shad liv 



Their occurrence there at present »^' 



Possibility of traversing the whole length of this river Iv 



Illustrated by shad in the Yang-tse-kiang in China. Iv 



Also by the shad of India 1'^ 



No dams or obstruction 1^'^ 



Suitable winter quarters in the Gulf of Mexico l^i' 



Shad in the great lakes 1^"' 



Shad in Salt Lake 1^1" 



Shad in the Pacific waters ^'^'" 



General result of the experiment on the Atlantic coast li^' 



2. The alewife or fresh-water herring ^^^ 



Economical value "^ 



As food for men "^ 



As food for other fish ^^ 



Attracting the cod to our shores ^^ 



Methods of multiplying '^^ 



Period of maturity '^' 



