CONTENTS 



Page 



The problem of defining and recognizing subpopulations of fishes. 



John C . Marr 1 



Statistical comparison of morphological data. 



William F . Royce 7 



Measurement of population movement by observation of meristic 

 or morphometric characters. 



T . M . Widrig and Bruce A . Taft 29 



A review of paper chromatography as used in systematics. 



David A . Farris 35 



The use of immunological techniques in racial studies. 



George J . Ridgway 39 



A review of recent studies of subpopulations of Pacific fishes. 



Elbert H . Ahlstrom 44 



Races of cutthroat trout in Yellowstone Lake. 



Oliver B . Cope 74 



Populations of the striped bass, Roccus saxatilis (Walbaum) 

 in tributaries of Chesapeake Bay. 



Edward C . Raney 85 



The subpopulation problem in the Pacific sardine, Sardinops caerulea . 



John C . Marr 108 



Disease resistant and susceptible populations of broorc trout 

 (Salvelinus fontinalis) . 



S . F . SnieszKO 126 



Note on the subpopulations of lake trout in the Great Lax;es. 



Paul H. Eschmeyer 129 



