FISHERIES OF THE UNITED STATES. 25 



Section H.— FISH CULTUKE. 



XXXVI. — Eggs and Young Fishes. 



165. Series of fish-eggs showing daily development of the em- 



bryofrom the unimpregnatedeggs to the newly hatched 

 fish. This series embraces all of the more important 

 species hatched by the Fish Commission, including 

 Brook Trout, Late Trout, Atlantic Salmon, Schoodic 

 Salmon, California Salmon, Rainbow Trout, Bangeley 

 Trout, White-fish, Shad, Mackerel, Cod, Ale wives, and 

 Yellow Perch. 



166. Series of young fish showing the rate of growth. This 



series includes the following species: Brook Trout, 

 Bainbow Trout, California Salmon, Atlantic Salmon, 

 White-fish, and Shad. 



XXXVL— Fish Ways. 



167. Models of all the more important styles of fish-way used 



in the United States, seventeen in number. Illustra- 

 tions of the Shotwell process for cleansing streams 

 from the refuse of gas factories. 



XXXVII. — Fish Culturists. 



168. Photographs of State Fish Commissioners. 



169. Photographs of officers and members of the American Fish 



Cultural Association and other representative fish cul- 

 turists. 



Section I.— INVESTIGATION OF THE WATEBS AND KE- 



SEABCH. 



XXXVIII. A.— Deep-Sea Besearch. 



170. A nearly complete series of the deep-sea sounding and 



dredging appliances, accessory apparatus, and instru- 

 ments for physical observations, used by the United 

 States Fish Commission, and United States Coast and 

 Geodetic Survey. Models, photographs, and plans 

 of the United States Fish Commission steamers Alba- 

 tross and Fish Hawk. Series of plates illustrating 

 the deep-sea sounding and dredging appliances of the 

 United States Coast Survey steamer Blake. 



171. Five relief models, showing the configuration of the sea 



bottom off the eastern coast of North America from 

 Newfoundland to Mexico. 



172. Chart, showing the dredging operations of the United 



States Fish Commission, 1871-1882. 



