[87] FISHERIES OF THE UNITED STATES. 1241 



Hatching- table — Continued. . 



supplied with natural and artificial eggs to illustrate better its 

 working. The first compartment contains the closed appara- 

 tus, the next the trough and other apparatus requiring run- 

 ning water, while the third is arranged as a basin or artificial 

 lake for showing the floating apparatus and other kinds us^d in 

 open streams. A McDonald fish-way is placed at the end of 

 the trough to conduct the waste water to the tank below, from 

 which it is again carried to the pump. 



Taking eggs. 



A plaster cast representing a man in the act of taking eggs from an 

 Atlantic salmon in a pan in which they are to be impregnated.. 

 By his side are casts of a ripe male and female salmon with the 

 abdominal walls removed to show the ovaries and spermaries 

 in position. 



Hauling shad-seine. 



Photograph of employes of the U. S. Fish Commission hauling the 

 seine for shad at the Havre de Grace hatching station, for 

 obtaining ripe fish from which eggs can be supplied to the 

 hatchery. Size, 30 by 40 inches. Havre de Grace, Md., 1882. 

 (660) 2,146. U. S. Fish Commission. 



Seining salmon. 



. Photographic view of a portion of the McCloud River, showing the 

 employes of the U. S. salmon hatching station hauling the seine 

 for securing spawning salmon to provide eggs for the hatchery. 

 Size, 8 by 10 inches. Baird, Cal., 1882. (723) 2,189. U. S.. 

 Fish Commission. 



Seining salmon. 



Photograph of employes of the U. S. Fish Commission engaged 

 in seining the spawning salmon from the inclosures in which 

 they. have been kept till the eggs are sufficiently developed for 

 hatching purposes. Size, 8 by 10 inches. Grand Lake Stream,, 

 Maine, 1882. (772) 2,230. U. S. Fish Commission. 



Handling salmon. 



Photograph of men engaged in transferring salmon from the tow- 

 ing cars rin which they have been brought from the fishing- 

 grounds to the inclosure, where they are allowed to remain un- 

 til ripe. Size, 8 by 10 inches. Bucksport, Me., 1882. (758). 

 " 2,219. U. S. Fish Commission. 



FlSH-CULTURAL OPERATIONS. 



Photograph showing a group of men at work salmon fishing, and 

 taking, impregnating, and washing eggs before placing them 



