Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16778
Further studies on the nutritional requirements of Colpoda duodenaria
No abstract available.
Authors
L. Garnjobst, E.L. Tatum, C.V. Taylor
Use of sodium arsenite for controlling submerged vegetation in fishponds
No abstract available at this time
Authors
E. W. Surber
A new polymastigine flagellate, Costia pyriformis, parasitic on trout
No abstract available.
Authors
H.S. Davis
Some economically important parasites of the wild turkey and Hungarian partridge of Pennsylvania
No abstract available.
Authors
E. Wehr, D.R. Coburn
A comparative study of the breeding bird population of Shenandoah Mountains, Virginia
WHILE working on habitat studies of the Ruffed Grouse (Bonasa umbellus) in the George Washington National Forest during the late spring and early summer of 1941, the author found it possible to carry out a supplemental study on the relative abundance of the breeding birds of the area. Since considerable time was spent in traversing certain sections of the forest in search of Ruffed Grouse broods,
Authors
R. E. Stewart
Bachman's sparrow in Maryland
The Bachman's Sparrow (Aimophila aestivalis bachmani) is known to be quite rare and irregular in distribution in the northern part of its range. Because of this the northern limits of its range have been rather ill-defined. According to the A. 0. U. Check-List, Fourth Edition: 343, 1931, this bird ranges north to central Virginia in the eastern part of its range and is casual near Washington, D. C
Authors
R. E. Stewart, B. Meanley
The Mexican snakes of the genera Sonora and Chionactis with notes on the status of other Colubrid genera
No abstract available.
Authors
W. H. Stickel
Returns from banded birds: Some miscellaneous recoveries of interest
No abstract available.
Authors
M.T. Cooke
Hooded warbler in North Dakota
he 1942 warbler migration at Kenmare, Ward County, North Dakota, was rich in species (seventeen) for a locality so far west on the Great Plains. On June 1, near the end of the northward flight, I found a male Hooded Warbler singing in shrubby undergrowth on a wooded coulee slope on the Des Lacs National Wildlife Refuge, about two miles south of Kenmare. The bird was observed at close range for sev
Authors
N. Hotchkiss
Effect of large quantities of common salt in the diet of bobwhite quail
No abstract available.
Authors
R. B. Nestler