MILNER ON THE AETIFICIAL CULTURE OF THE SHAD. 425 



Shad-hatching on the Potomac River, Jackson Citij, Va., opimsite Washington, D. C, in the 



year 1873. 



Percentage of eggs hatched 67J 



a One spawner in day time. 6 Three spawners in day time. 



e Eggs all dead. d Cloudy and rainy. 



e Heavy storm from north. /First shad hatched on 23d, sir days. 



g Transferred to Greenbrier Eiver, W. Va. h Transferred to New Eiver, Va. 



5. — METHODS EMPLOYED IN SHAD HATCHING. 



Up to 1867 the speckled trout, {Salmo fontinaJls,) the salmon, {Sal- 

 mo salar,) were the only fishes that had been hatched on any consider- 

 able scale in the United States. Experiments .had heen made with 

 more or less success on the yellow perch, [Perca flavescens) and the wall- 

 eyed pike, {Stizostedium americanum,) the common sucker {Catostomus 

 communis,) the corporal,* {Semotilus corporalis,'^.) the salmon-trout, {Salmo 

 namaycush,) and the white-fish, {Coregonus alhus.)f 



At the invitation of the States bordering on the Connecticut Eiver, Seth 

 Green visited the river and selected what afterward proved to be a most 

 excellent locality for a shad-hatching station. He began his experiments 

 in shad-hatching by using the usual methods for trout-hatching — the 



* A Treatise on the Artificial Culture of certain kinds of Fish, &g,, by Theodatus Gar- 

 Ijck, M. D., Cleveland, Ohio, 1857, p. 137. 

 t Annual Report Department of Agriculture, 1859. 



