Tagging experiments with lake trout, whitefish, and other species of fish from Lake Michigan
Oliver H. Smith, John Van Oosten
1940, Transactions of the American Fisheries Society (69) 63-84
A total of 2,902 Lake Michigan fish was tagged and released, 48.8 per cent of which were lake trout and 85 per cent lake trout, lake herring, and whitefish. A total of 388 fish or 13.4 per cent was recaptured. The percentages of returns indicated a tremendous fishing intensity for...
The nation and petroleum geology to-day
Hugh D. Miser
1940, Science (91) 249-252
No abstract available....
Extraction of alkalies in rocks: Modification of the J. Lawrence Smith extraction, using barium chloride as a flux
R.E. Stevens
1940, Industrial And Engineering Chemistry Analytical Edition (12) 413-415
No abstract available....
Chromite deposits of the eastern part of the Stillwater complex, Stillwater County, Montana
Joe Webb Peoples, Arthur Lloyd Howland
1940, Bulletin 922-N
No abstract available....
The smelt, Osmerus mordax (Mitchill)
John Van Oosten
1940, Report
No abstract available....
A new fungus disease of trout
H.S. Davis, E.C. Lazar
1940, Transactions of the American Fisheries Society (70) 264-271
Scyphidia micropteri, a new protozoan parasite of largemouth and smallmouth black bass
E. W. Surber
1940, Transactions of the American Fisheries Society (69) 169-175
A small urn‐shaped peritrichous protozoan, apparently an undescribed species, was found on the gills and bodies of largemouth and smallmouth black bass in ponds at Leetown, West Virginia. A heavy mortality among a lot of fingerling largemouth bass probably resulted from suffocation due to the organisms on the gills. Specimens...
Neascus infection of black-head, blunt-nosed, and other forage minnows
G. E. Klak
1940, Transactions of the American Fisheries Society (69) 273-278
Black‐head, blunt‐nosed, and other minnows were found infested with encysted flatworms in ponds at Leetown, West Virginia. The mortality in a 2.2‐acre pond stocked with 100,000 black‐head minnows was about 250 per day during four weeks of observation. Heavy infestations caused sterility in the minnows. The cyst and parasite are...
Ridge-making thin sandstone in Frederick County, Virginia: Chapter C
R.S. Edmundson
1939, Book chapter, Contributions to Virginia Geology--II
It is generally recognized that massive thick-bedded sandstones and relatively weak shales and soluble limestones form characteristic surface features. The uncommon effect of a thin argillaceous sandstone in producing ridges in an area in northern Virginia, in which the writer has recently done detailed field work, is briefly described in...
A history of the Water Resources Branch of the United States Geological Survey: volume 4, years of World War II, July 1, 1939 to June 30, 1947
Robert Follansbee
1939, Report
This period extends from July 1, 1939, to June 30, 1947, and is called the years of World War II, although it was not until December 1941 that the United States entered the war which began in Europe in September 1939. By the beginning of the period, it was evident...
Simplified methods for the prolonged treatment of fish diseases
F. F. Fish
1939, Transactions of the American Fisheries Society (68) 178-187
The prevention or control of epidemics of fish diseases by applying a disinfecting solution in a uniform concentration directly to the water supply of a fish pond or trough for a definite period of time has been exceedingly slow in development. In so far as can be determined, the original...
Notes on the effect of low temperature upon eyed eggs
F. F. Fish, R.E. Burrows
1939, Progressive Fish-Culturist (6) 28-31
The question has sometimes been raised whether or not any permanent injury may be inflicted upon fish eggs through their subjection to the relatively low temperatures prevailing in egg cases during shipment. This question may be argued in either direction purely upon the basis of indirect evidence which can be summoned...
Notes on Myxobolus inoratus, n sp, a Myxosporidian, parasitic in the black bass (Huro floridana, Le Sueur)
F. F. Fish
1939, Transactions of the American Fisheries Society (68) 173-177
A largemouth black bass fingerling preserved in formalin was sent to the U.S. Bureau of Fisheries Pathology Laboratory at Seattle, Washington, during the autumn of 1937, by a hatchery employee at Miles City, Montana. The fish exhibited several wart-like protuberances on the caudal peduncle, which aroused the curiosity of Mr....
Disease prevention in the trout hatchery
F. F. Fish
1939, Progressive Fish-Culturist (6) 1-7
With the comparatively recent evolution of fish hatching into true fish culture the problems offered by fish disease have likewise evolved from more or less of a petty annoyance into a first class headache....
Plant histology as an aid in squirrel food-habit studies
L. L. Baumgartner, A. C. Martin
1939, Journal of Wildlife Management (3) 266-268
No abstract available....
Food of game ducks in the United States and Canada
A. C. Martin, F.M. Uhler
1939, Technical Bulletin No. 634.
Geologic Structure of Bueyeros carbon dioxide area, Harding County, New Mexico
Water Resources Division, U.S. Geological Survey
1939, Open-File Report 39-7
Field spectroanalytical laboratory for servicing prospecting parties
E.A. Ratsbaum, V.P. Sokoloff (translator)
1939, Open-File Report 48-21-A
Major Texas floods of 1935
Tate Dalrymple
1939, Water Supply Paper 796-G
In localities where highly mineralized water is present in beds above and below the beds that yield the supplies of fresh water it is necessary to be able to locate leaks in wells in order to know whether the wells are being contaminated through holes in the casings or whether...
Geology of the Searchlight district, Clark County, Nevada
Eugene Callaghan
1939, Bulletin 906-D
Gravel and sand deposits of eastern Maryland, adjacent to Washington and Baltimore
Nelson Horatio Darton
1939, Bulletin 906-A
Floods of December 1937 in northern California
H.D. McGlashan, R.C. Briggs
1939, Water Supply Paper 843
Ground water in the United States, a summary of ground-water conditions and resources, utilization of water from wells and springs, methods of scientific investigation, and literature relating to the subject
O. E. Meinzer
1939, Water Supply Paper 836-D
Mineral industry of Alaska in 1937
Philip Sidney Smith
1939, Bulletin 910-A
Geology and ground-water hydrology of the Mokelumne area, California
A. M. Piper, H. S. Gale, H. E. Thomas, T. W. Robinson
1939, Water Supply Paper 780
The Mokelumne River basin of central California comprises portions of the California Trough and the Sierra Nevada section of the Pacific Mountain system. The California Trough is divisible into four subsections-the Delta tidal plain, the Victor alluvial plain, tlie river flood plains and channels, and the Arroyo Seco dissected pediment....
