Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16783
Chemical quality of surface water in the Allegheny River basin, Pennsylvania and New York
The Allegheny River is the principal source of water to many industries and to communities in the upper Ohio River Valley. The river and its many tributaries pass through 19 counties in northwestern and western Pennsylvania. The population in these counties exceeds 3 million. A major user of the Allegheny River is the city of Pittsburgh, which has a population greater than The Allegheny River is a
Authors
Edward F. McCarren
Guidebook for the Annual Field Conference of Pennsylvania Geologists: Geology in the region of the Delaware to Lehigh water gaps
No abstract available.
Authors
Jack B. Epstein, Anita G. Epstein
Aging mourning doves by outer primary wear
Many immature mourning doves (Zenaidura macroura) cannot be aged by the conventional white-tipped primary covert method if molt has proceeded beyond the 7th primary. A new method of aging doves in this group is based on the presence (immature) or absence (adult) of a buff-colored fringe on the tips of the 9th and 10th primaries. Experienced biologists were nearly 100 percent accurate in aging wing
Authors
H. M. Wight, L. H. Blankenship, R. E. Tomlinson
Pesticide residues in the ecosystem
Pesticide residues have become a component of nearly all living organisms. Nearly all California birds and fish collected in a 1963 pesticide survey contained residues. Discovery of DDT and metabolites in Antarctic animals in 1964 pushed the distribution of pesticides to the remotest portions of the globe. Exchange of pesticides in the aquatic world progresses rapidly, even in the quiet waters of
Authors
E. H. Dustman, Lucille F. Stickel
Hot brines and recent iron deposits in deeps of the Red Sea
Sedimentary iron and heavy-metal deposits of undetermined size have been found in the middle of the Red Sea some 2000 meters below the surface of the sea (Fig. 1). This discovery has been made from the Research Vessel Atlantis II, which is still at sea engaged in a series of oceanographic investigations which ultimately will end in November 1965, after the ship has circumnavigated the globe. The d
Authors
A.R. Miller, C.D. Densmore, E.T. Degens, J. C. Hathaway, F. T. Manheim, P.F. McFarlin, R. Pocklington, A. Jokela
Soviet books and publications on geological and chemical oceanography, hydrology, and other subjects acquired during the second international oceanographic congress, Moscow, June 1966: titles and some translated contents and notes
The listed publications represent a selection, by no means complete, of recent Soviet work in geological and chemical oceanography. Some works on hydrogeology and hydrochemistry of the continents, as well as a few publications on other subjects, such as geology, geophysics, and biology, also are included.
Authors
F. T. Manheim
Earliest susceptible age of rainbow trout to whirling disease
No abstract available.
Authors
R.E. Putz, G. L. Hoffman
Sixty-sixth Christmas Bird Count. 241. Southern Dorchester County, Md
No abstract available.
Authors
C.S. Robbins
Proportion of recovered duck bands that are reported
Band-reporting rates (the proportion of duck bands recovered by hunters that are actually reported to the Bird Banding Laboratory) appear to have decreased between the late 1950's and early 1960's. About one-half the banded ducks bagged during the 1958-59 and 1959-60 hunting seasons were reported-a rate similar to those recorded in other studies conducted during the early and mid-1950's. Band-rep
Authors
R.K. Martinson
[Book review] Familiar Garden Birds of America, by Henry H. Collins, Jr., and Ned R. Boyajian
No abstract available.
Authors
C.S. Robbins