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These publications showcase the significant science conducted in our Science Centers.

Filter Total Items: 16780

Dangers of electric fishing: precautions to take

No abstract available at this time
Authors
R. Cuinat

[Book review] Taschenbuch der Fischkrankheiten fuur Fischereibiologen Tierarzte Fischzuchter und Aquarianer (Pocketbook of fish diseases for fishery biologists, veterinarians, fish culturists, and aquarium fanciers), by Erwin Amlacher

Review of: Taschenbuch der Fischkrankheiten, fu?r Fischereibiologen, Tiera?rzte, Fischzu?chter und Aquarianer. Erwin Amlacher. Jena, Fischer, 1961. xi, 286 p. illus.
Authors
S. F. Snieszko

Disease-protective symbiosis among fishes and other aquatic animals

There have been numerous observations of one species of animal removing parasites from another. These are, however, generally regarded as biological curiosities rather than as significant factors in the control of parasites or disease.
Authors
S. F. Snieszko

Established eurythermic line of fish cells in vitro

No abstract available.
Authors
K. Wolf, M. C. Quimby

Salinity of the Delaware Estuary

The purpose of this investigation was to obtain data on and study the factors affecting the salinity of the Delaware River from Philadelphia, Pa., to the Appoquinimink River, Del. The general chemical quality of water in the estuary is described, including changes in salinity in the river cross section and profile, diurnal and seasonal changes, and the effects of rainfall, sea level, and winds on
Authors
Bernard Cohen, Leo T. McCarthy

Preliminary report on the seismic investigations in the Harwich and Dennis quadrangles, Massachusetts

No abstract available.
Authors
Robert N. Oldale, Curtis Randall Tuttle, Louis W. Currier

Occurrence of eastern encephalitis virus in house sparrows

No abstract available.
Authors
L. N. Locke, J. E. Scanlon, R. J. Byrne, J. O. Knisley

Drainage basins, channels, and flow characteristics of selected streams in central Pennsylvania

The hydraulic, basin, and geologic characteristics of 16 selected streams in central Pennsylvania were measured for the purpose of studying the relations among these general characteristics and their process of development. The basic parameters which were measured include bankfull width and depth, channel slope, bed material size and shape, length of stream from drainage divide, and size of draina
Authors
Lucien M. Brush

Floods in Pennsylvania, frequency and magnitude

This report outlines a method of determining the magnitude of floods having frequencies up to 50 years for any stream in Pennsylvania except regulated streams and streams whose drainage basins are smaller than 10 square miles. On the main stems of the Schuylkill, Delaware, Susquehanna, and Chemung Rivers the magnitude of floods can be determined for frequencies up to 100 years. Six composite frequ
Authors
W. F. Busch, E.C. Shaw