Zooplankton and environmental characteristics of the Patuxent River Estuary 1963–1965 Sidney S. HermanJoseph A. MihurskyAndrew J. McErlean OriginalPaper Pages: 67 - 82
Effects of chlorinated sewage effluents on fishes in upper Patuxent River, Maryland Chu-fa Tsai OriginalPaper Pages: 83 - 93
Erythrocyte antigens and natural isoagglutinins of the American eel,Anguilla rostrata, from Chesapeake Bay Carl J. SindermannGeorge E. Krantz OriginalPaper Pages: 94 - 98
Lethal temperature and salinity tolerances of the white catfish,Ictalurus catus, from the Patuxent River, Maryland Arthur W. KendallFrank J. Schwartz OriginalPaper Pages: 103 - 108
Descriptive and comparative osteology of the young of three species of flounders, genusParalichthys William S. WoolcottCaperton BeirneWilliam M. Hall OriginalPaper Pages: 109 - 120
Larval development of the decapodEuceramus praelongus in laboratory culture Morris H. Roberts OriginalPaper Pages: 121 - 130
Suspended sediment discharge of the Susquehanna River at Havre de Grace, Maryland, during the period 1 April 1966 through 31 March 1967 J. R. Schubel OriginalPaper Pages: 131 - 135
Toxicity of the Northern Puffer,Sphaeroides maculatus, in the Chesapeake Bay and its environs Paul F. RobinsonFrank J. Schwartz Short Papers and Notes Pages: 136 - 137
Occurrence of the porcupineErethizon dorsatum and the nutriaMyocastor coypus bonariensis in Western Maryland Dan M. HarmanTheodore Thoerig Short Papers and Notes Pages: 138 - 139
Performance of different larches in Central Maryland John B. Genys Short Papers and Notes Pages: 139 - 141
First record of the larch sawflyPristiphora erichsonii in Maryland, with notes on its distribution Dan M. Harman Short Papers and Notes Pages: 141 - 143
The national waterway: A history of the Chesapeake and Delaware Canal, 1760–1965 Thomas A. Wisner Review Pages: 144 - 144