Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16783
Status of duck virus enteritis (duck plague) in the United States
No abstract available.
Authors
John W. Walker, C.J. Pfow, S.S. Newcomb, W.D. Urban, H.E. Nadler, L. N. Locke
Adoption of a nestling house mouse by a female short-tailed shrew
A nursing female short-tailed shrew (Blarina brevicauda) adopted a nestling house mouse (Mus musculus). The mouse was observed in the nest with the female and her litter of shrews three days after it was introduced into the aluminum box containing the shrews, but it was found dead in the nest four days later.
Authors
Lawrence J. Blus, D.A. Johnson
Geology of the Valley and Ridge Province between Delaware Water Gap and Lehigh Gap, Pennsylvania
No abstract available.
Authors
Jack B. Epstein, Anita G. Epstein
Disposal of liquid wastes by injection underground--Neither myth nor millennium
Injecting liquid wastes deep underground is an attractive but not necessarily practical means for disposing of them. For decades, impressive volumes of unwanted oil-field brine have been injected, currently about 10,000 acre-feet yearly. Recently, liquid industrial wastes are being injected in ever-increasing quantity. Dimensions of industrial injection wells range widely but the approximate media
Authors
Arthur M. Piper
Water for the cities - The outlook
Except perhaps for the arid Southwest, water resources are generally sufficient to meet the needs of cities for the foreseeable future. Cities will continue to expand and additional rural areas will be converted to urban and suburban complexes. Demands for urban water will continue to rise and this will place a heavy strain on existing systems.
Cities have always faced water problems. This has lar
Authors
William Joseph Schneider, Andrew Maute Spieker
Water quality and discharge of streams in the Lehigh River Basin, Pennsylvania
The Lehigh River, 100 miles long, is the second largest tributary to the Delaware River. It drains 1,364 square miles in four physiographic provinces. The Lehigh River basin includes mountainous and forested areas, broad agricultural valleys and areas of urban and industrial development. In the headwaters the water is of good quality and has a low concentration of solutes. Downstream, some tributa
Authors
Edward F. McCarren, Walter B. Keighton
Intercontinental and transcontinental dissemination and transfaunation of fish parasites with emphasis on whirling disease (Myxosoma cerebralis)
No abstract available at this time
Authors
G. L. Hoffman
Host susceptibility and the effect of aging, freezing, heat, and chemicals on spores of Myxosoma cerebralis
No abstract available.
Authors
G. L. Hoffman, R.E. Putz
Epitheliocystis, a new infectious disease of the bluegill (Lepomis macrochirus)
No abstract available.
Authors
G. L. Hoffman, C.E. Dunbar, K. Wolf, L.O. Zwillenberg
Infectious pancreatic necrosis virus: Lyophilization and subsequent stability in storage at 4 C
Infectious pancreatic necrosis virus (ATCC strain VR # 299) was lyophilized with different additives and stored at 4 C. Ampoules were assayed at 2 days, at 1, 3, and 6 months, and at 1, 3, and 4 years. Processing losses were least and subsequent maintenance of infectivity was best in skim milk, lactalbumin hydrolysate, and lactose. Quantitative data are given in tabular form.
Authors
K. Wolf, M. C. Quimby, C. P. Carlson
Plaque assay and some characteristics of Egtved virus (virus of viral hemorrhagic septicemia of rainbow trout)
A plaque assay and some growth characteristics of Egtved virus in a line of rainbow trout cells (RTG-2) are described. Preliminary experiments with metabolic inhibitors suggest that the viral genome is ribonucleic acid.
Authors
J. B. Campbell, Ken Wolf