[75] FISHERIES OF THE UNITED STATES. 1229 



COLLINS'S SPAWNING-RACE. 



« 



Model of spawning-race similar to the Ainsworth spawning-race, 

 but with an endless revolving wire cloth apron in place of the 

 lower trays, and a movable pan, which receives the eggs. The 

 advantages of this spawning-race are saving of time and labor, 

 and convenience of manipulation, as the men are not obliged 

 to go into the water in order to secure the eggs. Patented by 

 A. S. Collins, U. S. Fish Commission. 



Marbleized spawning-pans. 



Pans of marbleized iron of various sizes. U. S. Fish Commission. 

 57,155. Used for receiving and impregnating eggs of different 

 species. These pans can be advantageously used in salt water, 

 as they are not liable to rust, 



Common spawning pans. 



Ordinary tin pans with flaring sides, used in the manipulation of 

 eggs of fresh-water fishes. 12 inches in diameter and 3 inches 

 deep. U. S. Fish Commission. 39,116. 



Egg-dipper. 



A seamless tin dipper. Diameter of bowl, 5 inches; depth of bowl, 

 2£ inches; length of handle, 10 inches. XT. S. Fish Commis- 

 sion. 42,938. Used in changing water on eggs while en route 

 for the hatchery. 



Wooden nippers for removing dead eggs. 



Devised by F. Mather. 20,915. U. S. Fish Commission. 



Wooden nippers, with wire loops, for removing dead eggs. 

 Devised by M. A. Green. 39,113. New York Fish Commission. 



Shad skimming-net. 



A rectangular frame of galvanized iron, covered with coarse-mesh 

 netting, and provided with a wooden handle, for removing dead 

 shad eggs from hatching-boxes and cones. Net, 6 inches long 

 and 5 inches wide ; handle, inches long. Devised by M. A. 

 Green, Eochester, N. Y. 39,114 (a). Presented by the New 

 York Fish Commission. 



Trough-net. 



A semicircular galvanized iron frame covered with fine-meshed 

 netting, and provided with a wooden handle, for removing 

 young salmon and other smaller fish from the hatching and 

 feeding troughs. Presented by T. B. Ferguson, Baltimore, Md. 

 39,115. U. S. Fish Commission. 



