Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Variations in the chemical character of the Susquehanna River at Harrisburg, Pennsylvania
The chemical quality of the Susquehanna River at Harrisburg is influenced by three major factors: streamflow, anthracite and bituminous coal-mine drainage, and geology. Water samples collected at Harrisburg near the west bank of the Susquehanna River and those of western tributaries that drain limestone terranes are similar in chemical quality. The water is alkaline and contains calcium, magnesium
Authors
Peter W. Anderson
Estimating consumption of food by wintering waterfowl populations
No abstract available.
Authors
John L. Sincock
Observations of birds feeding on overwintering corn borer
No abstract available.
Authors
Don Fankhauser
Whirling disease of trouts caused by Myxosoma cerebralis in the United States
No abstract available at this time
Authors
G. L. Hoffman, C.E. Dunbar, A. Bradford
Freshwater fish diseases caused by bacteria belonging to the genera Aeromonas and Pseudomonas: Revised
No abstract available.
Authors
S. F. Snieszko
Relation between ground water and surface water in Brandywine Creek basin, Pennsylvania
The relation between ground water and surface water was studied in Brandywine Creek basin, an area of 287 square miles in the Piedmont physiographic province in southeastern Pennsylvania. Most of the basin is underlain by crystalline rocks that yield only small to moderate supplies of water to wells, but the creek has an unusually well-sustained base flow. Streamflow records for the Chadds Ford, P
Authors
F. H. Olmsted, A. G. Hely
Virus array in lymphocystis cells of sunfish
No abstract available at this time.
Authors
R. Walker, K. Wolf
Report of the National Mosquito Control-Fish and Wildlife Management Coordination Committee for 1961
No abstract available.
Authors
P. F. Springer, R.L. Vannote, K.D. Quarterman, A.W. Lindquist, E.A. Seaman, I.N. Gabrielson
Occurrence of Trypanosoma cruzi in Maryland
During 1954-1960, 2005 mammals of 18 species collected at the Patuxent Wildlife Research Center, Maryland, were examined for trypanosomes. T. cruzi was found in 10 raccoons between October 31 and November 30. Infection occurred in 2 percent of all raccoons sampled, and in 11.3 percent of the 80 raccoons sampled in November. Examination was by direct smears, stained smears and cultures of heart blo
Authors
C. M. Herman, J.I. Bruce
Foot abnormalities of wild birds
No abstract available.
Authors
C. M. Herman, L. N. Locke, G. M. Clark
[Obituary] Seth Haskell Low, Ornithologist, Bander, Conservationist
No abstract available.
Authors
C.S. Robbins