Determination of color of turbid waters
W.L. Lamar
1949, Analytical Chemistry (21) 726-727
A convenient procedure for determining the color of turbid waters, using the principle of precipitation of turbidity by the electrolyte calcium chloride, is described. Because the stable turbidity of many surface waters cannot be completely precipitated by conventional centrifuging alone, this procedure presents a means of flocculating the turbidity without...
Le stereorestituteur Kelsh
H. T. Kelsh
1949, Photogrammetria (6) 123
Le stéréorestituteur Kelsh est un appareil de restitution à double projection basé sur le principe des anaglyphes, comme le Multiplex par exemple, mais il a une plus grande précision que ce dernier, vu que les négatifs sont utilisés directement pour la restitution, sans que l'on soit obligé de les réduire...
Dosage of sulfamerazine in the treatment of furunculosis in brook trout, Salvelinus fontinalis
J.S. Gutsell, S. F. Snieszko
1949, Transactions of the American Fisheries Society (76) 82-96
To determine the most effective dosage of sulfamerazine in the treatment of furunculosis in brook trout, two experiments were run.In the first experiment, yearlings were used and the daily dosage rates were 4, 8, and 12 grams of sulfamerazine per 100 pounds of fish. In the lots treated...
Geology of the Bechtol lead mine, Stevens County, Washington
Charles Duncan Campbell
1949, Open-File Report 49-25
No abstract available....
Supplements to yellow corn for winter-maintenance and subsequent reproduction of quail
Ralph B. Nestler
1949, Journal of Wildlife Management (13) 123-126
No abstract available. ...
Response of brook, rainbow, and brown trout to various dosages of sulfamerazine
J.S. Gutsell, S. F. Snieszko
1949, Transactions of the American Fisheries Society (77) 93-101
During experiments in 1945 and 1946 in which sulfamerazine in the food was found to be effective in the treatment of furunculosis in brook trout (Salvelinus fontinalis), it was observed that fish grew faster on untreated food and that when the dosage rate was heavy they did not eat...
A definition of depletion of fish stocks
John Van Oosten
1949, Transactions of the American Fisheries Society (76) 283-289
Attention was focused on the need of a common and better understanding of the term depletion as applied to the fisheries in order to eliminate if possible the existing inexactness of thought on the subject. Depletion has been confused at various times with at least ten different ideas associated with...
Relations of bauxite and Kaolin in the Arkansas bauxite deposits
M.I. Goldman, Joshua Irving Tracey Jr.
1949, Economic Geology (41) 567-575
Investigation of the Arkansas bauxite deposits by the U. S. Geological Survey during the years 1942 to 1945 has brought out the fact that secondary kaolinization or silication of the bauxite is much more common than has been generally recognized. On the other hand no direct evidence was found of...
Phosphate deposits of the Deer Creek-Wells Canyon area, Caribou County, Idaho
Charles F. Deiss
1949, Bulletin 955-C
No abstract available....
Natural water losses in mountain drainage areas of southern California
Harold C. Troxell, H.M. Stafford
1949, Eos, Transactions, American Geophysical Union (30) 752-758
For twenty‐five small mountain drainage areas of Southern California, natural water losses are shown to vary with basin altitude, and with estimated absorptive and retentive characteristics of the drainage areas. Among other relationships demonstrated is the increase of the annual natural water loss with increased annual precipitation to an optimum,...
Ground water in the East Shore area, Utah. Part I. Bountiful District, Davis County
H. E. Thomas, W.B. Nelson
1948, Technical Publication 5
The Bountiful district in Davis County, Utah, less than 10 miles from the heart of Salt Lake City, is rapidly becoming an integral part of the metropolitan area of Salt Lake City. It cannot achieve the development that its location merits unless the present water supplies are increased. The district...
A report upon the Grand Coulee Fish Maintenance Project 1939-1947
F. F. Fish, Mitchell G. Hanavan
1948, Special Scientific Report - Fisheries 55
The construction or Grand Coulee Dam, on the upper Columbia River, involved the loss of 1,140 lineal miles of spawning and rearing stream to the production of anadromous fishes. The fact that the annual value of these fish runs to the nation was estimated at $250,000 justified reasonable expenditures to...
New compounds for the control of bacterial gill disease
R.R. Rucker
1948, Progressive Fish-Culturist (10) 19-22
BACTERIAL GILL DISEASE, a common epizootic among hatchery fish, can be controlled by copper sulphate dips, as stated by Davis (1945), or by prolonged treatments with Roccal, as noted by Fish (1947). The use of copper sulphate is not without danger because of variation in toxicity according to the hardness...
The return on the blueback salmon to the Columbia River
Frederick S. Fisher
1948, Scientific Monthly (66) 283-292
THE year 1941 was a crucial one for the blueback salmon of the Columbia River. During that year, one brood came closer to extinction than was realized by more than a few individuals. The immediate causes were not overfishing, hydroelectric power development, or irrigation—although these factors continued to exert their...
Removal of excess nitrogen in a hatchery water supply
R.R. Rucker
1948, Progressive Fish-Culturist (10) 88-90
The water system at the U. S. Fish Cultural Station, Leavenworth, Washington, has been supplemented with two wells that were to be used to increase the temperature of the water during the winter and to cool the Water in the summer if necessary. The well water proved to be unsuitable...
Cranberry magnetite deposits Avery County, N.C., and Carter County, Tenn.
M.H. Kline, T.J. Ballard
1948, U.S. Bureau of Mines Report of Investigations 4274
The Cranberry magnetite deposits occur in pre-Cambrian granite-gneiss in a belt extending from 3 miles southeast of Cranberry, N.C., to about 6 miles southwest of Magnetic City, Tenn. The belt forms a curve, elongated to the north, approximately 26 miles in length....
Cobalt-copper deposits in the Blackbird district, Lemhi County, Idaho
J. S. Vhay
1948, Strategic Minerals Investigations Preliminary Report 3-219
Geologic map of part of eastern San Juan Basin, Rio Arriba County, New Mexico
C. H. Dane
1948, Report
The configuration of the rock floor in western Long Island, New York
Wallace De Laguna, M.L. Brashears
1948, Bulletin GW-13
Geologic correlation of logs of wells in Kings County, New York
Wallace De Laguna
1948, Bulletin GW-17
Results of pumping tests on artesian wells in the Milwaukee - Waukesha area, Wisconsin
W.J. Drescher
1948, Open-File Report 48-85
As a result of a bill passed by the Wisconsin State Legislature in 1945, ground-water investigations in Wisconsin have been under way since February 1946 under the terms of an agreement between the U. S. Geological Survey and the University of Wisconsin. Pumping tests on wells that yield water...
[Book review] The Land and Wildlife, by Edward H. Graham, Oxford University Press, New York, 1947
D.L. Allen
1948, Wood Thrush (3) 38
Winter bird-population study. 11. Upland oak forest, pine-oak forest, bottomland forest and forest clearing
R. E. Stewart
1948, Audubon Field Notes (2) 158-159
Storage by bobwhite quail of vitamin A fed in various forms
R. B. Nestler, James V. Derby, J.B. DeWitt
1948, Journal of Nutrition (36) 323-329
According to studies conducted with 236 bobwhite quail chicks at Patuxent Research Refuge, crystalline carotene in cottonseed oil fed at levels of 3000 I.U. (the requirement for optimum growth), 5000 I.U., and 25,000 I.U. per pound of feed, was utilized only ⅓ to 1/7 as efficiently as vitamin...
Wildlife management in land-use programs
D.L. Allen
1948, Wildlife Leaflet 309
