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Articles 51811 - 51840 of 51903

Full-Text Articles in Physical Sciences and Mathematics

Analytical Data, Walter A. Lawrance Oct 1949

Analytical Data, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


America's Playground For Americans: An Appriciation Of Colorado And Utah, Edwin L. Sabin Jan 1949

America's Playground For Americans: An Appriciation Of Colorado And Utah, Edwin L. Sabin

Elusive Documents

No abstract provided.


Development Of The Potential Weber Basin Project, Utah: Bonneville Basin, United States Department Of The Interior Jan 1949

Development Of The Potential Weber Basin Project, Utah: Bonneville Basin, United States Department Of The Interior

Elusive Documents

No abstract provided.


Management Of Native Deer In Nebraska, John H. Wampole, Edson Fichter Jan 1949

Management Of Native Deer In Nebraska, John H. Wampole, Edson Fichter

Nebraska Game and Parks Commission: Publications

Deer are on the increase in Nebraska. Reports of deer seen, of deer killed on highways, and of localized cases of damage to crops by deer have become increasingly frequent during the last ten years. Since Nebraska is not primarily a land of forests nor of great repute as a deer state, the presence of these mammals in more than rare occurrences arouses considerable interest-and creates new problems in wildlife management.

It is the purpose of these notes to answer some of the questions most commonly asked about deer in Nebraska, and to point out certain misunderstandings which have led …


Geological Survey Circular 346: First Fourteen Years Of Lake Mead, Harold E. Thomas Jan 1949

Geological Survey Circular 346: First Fourteen Years Of Lake Mead, Harold E. Thomas

Publications (WR)

This circular summarizes the results of recent studies of Lake Mead and its environs. Area-capacity tables, prepared on the basis of a hydrographic survey of the lake in 1948-49, show that the capacity of the reservoir was reduced 4. 9 percent during the first 14 years after Hoover Dam was completed, but the usable capacity was reduced only 3.2 percent. Practically all of this reduction was caused by accumulation of sediment in the reservoir. Studies of inflow and outflow indicate that the reservoir has a total storage capacity about 12 percent greater than that shown by the area-capacity table, because …


American And British Atomic Energy Reports, O. Willard Holloway Feb 1948

American And British Atomic Energy Reports, O. Willard Holloway

United States Department of Commerce: Staff Publications

This publication lists all of the reports on atomic energy which have been released by the Office of Technical Services. Included are reports of both the United States and Great Britain. These reports are available to interested parties in either photostat
or microfilm form. Reports should be ordered from OTS by PB number and the order should be accompanied by a check or money order made payable to the Treasurer of the United States.

For convenience this publication is arranged in four parts:

Part 1. List of American Atomic Energy Reports.

Part 2. Numerical Index to American Atomic Energy Reports …


Interim Report On The Florida Crawfish Investigation., Marine Laboratory Jan 1948

Interim Report On The Florida Crawfish Investigation., Marine Laboratory

RSMAS Technical Reports

During 1944-1945 the volume of lobsters landed in the spiny lobsters industry decreased to about one half of the 1943 volume and to little more than one third of the amound landed during 1941, which was the year of peak production. Since it was suggested that the cause of this might be overfishing, the University of Miami Marine Laboratory was invited to carry out an investigation in co-operation with the United States Fish and Wildlife Service and the Florida State Board of Conservation.


Report On A Survey Of The Sponge Grounds North Of Anclote Light: With Recommendations For The Control And Development Of The Industry., Marine Laboratory Jan 1948

Report On A Survey Of The Sponge Grounds North Of Anclote Light: With Recommendations For The Control And Development Of The Industry., Marine Laboratory

RSMAS Technical Reports

No abstract provided.


Progress Report On The Ground-Water Hydrology Of The Republican And Frenchman River Valleys, With A Section On The Chemical Quality Of The Ground Water, Herbert A. Waite, Herbert A. Swenson Jan 1948

Progress Report On The Ground-Water Hydrology Of The Republican And Frenchman River Valleys, With A Section On The Chemical Quality Of The Ground Water, Herbert A. Waite, Herbert A. Swenson

United States Geological Survey: Water Reports and Publications

Abstract for first section

This report is based on current investigations of the groundwater resources of the Republican and Frenchman River Valleys in Nebraska and includes data gathered to December 31, 1947. These studies vere started late in 1945 as a part of a program of groundwater investigations now in progress in connection with the Missouri River basin development plan. Studies to date have consisted principally of periodic observations of water table fluctuations at selected observation wells, of collection of samples of groundwater for chemical analysis, and of collection of data concerning the municipal water supplies in the valley. In …


Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth Jan 1948

Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth

University of the Pacific Theses and Dissertations

This thesis is a report of the findings of two years of part-time work on the limpets of the family Acmaedae. The major portion of the work was done on the Monterey Peninsula between Point Pines, 36° 38' 30" N. latitude, 121° 56' 00" W. longitude, and Pescadero Point 30° 33' 40" N. latitude, 121° 56' 30" W. longitude. The work on homing in Acmaea persona, artificial parthenogenesis in the eggs of Acmaea pelta, and artifical insemination of the eggs of Acmaea pelta was carried on at the Pacific Marine Station, Dillon Beach, California at 38° 14' 30" N. latitude, …


Press Reports (1947), Walter A. Lawrance Oct 1947

Press Reports (1947), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Odor Report (1947), Walter A. Lawrance Oct 1947

Odor Report (1947), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Plan Of Development For Valley Gravity Project, Julius A. Krug, Michael W. Straus, Wesley R. Nelson May 1947

Plan Of Development For Valley Gravity Project, Julius A. Krug, Michael W. Straus, Wesley R. Nelson

Lower Rio Grande Valley Curated Material

"The Valley Gravity Project Plan has been formulated to furnish an adequate and dependable irrigation water supply for fertile and productive area in the Lower Rio Grande Valley, Texas, It would also provide drainage works, which would remove the threat of destruction of the economy of the area due to effects of a high water table and salt accumulations. The project works would permit generation of the maximum practicable amount of electrical energy which otherwise would be required to operate irrigation pumping plants. Other incidental benefits include fish and wildlife conservation, recreation and flood control."

Project report no. 5-0619-0


Observations On The Nighttime Resting And Biting Habits Of Anopheline Mosquitoes In Ddt-Treated And-Untreated Buildings, Clarence M. Tarzwell, Frank W. Fisk Jan 1947

Observations On The Nighttime Resting And Biting Habits Of Anopheline Mosquitoes In Ddt-Treated And-Untreated Buildings, Clarence M. Tarzwell, Frank W. Fisk

United States Environmental Protection Agency: Publications

Laboratory cage tests and controlled experiments in houses have clearly demonstrated that residual-spray deposits of DDT are lethal to mosquitoes for considerable periods. Although these tests valuable information on the durability of DDT residual deposits, they did not give information on the mortality of malaria mosquitoes naturally entering treated dwellings in search of a blood meal. In order to secure a lethal dose of DDT from residual deposits, mosquitoes must actually touch the material and be exposed to it for a considerable period. This period has been shown to vary (1), depending on the temperature, age of treatment, density and …


Duck, Goose And Pheasant Records From Ogallala Game Dressing Station, 1943-1946, John H. Wampole Jan 1947

Duck, Goose And Pheasant Records From Ogallala Game Dressing Station, 1943-1946, John H. Wampole

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

For several seasons records of the number of ducks brought in to be dressed have been kept at an Ogallala dressing station. Records have been tabulated and summarized in an effort to measure the hunter success. Since no record of hunter-days or hunter-trips is obtainable, this report is based upon seasonal totals, daily averages, and numbers per bag. Table III (page 27) shows the number of bags, seasonal totals and average numbers of birds per bag. Table IV shows the take by months and Table V shows the averages per day for the three months of each season.


Wildlife Records From Mail Carriers In April, Levi L. Mohler Jan 1947

Wildlife Records From Mail Carriers In April, Levi L. Mohler

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

608 mail carriers kept records of game birds seen during the week of April 21 - 26. This was the eighth time that mail carriers have cooperated on a statewide basis. April counts were omitted in 1946 but comparisons are made below of 1945 and 1947 data.

The mail carriers' work provides an inexpensive method of getting extensive statewide observations, and informational bulletins returned to the carriers are of definite value as a public relations step. (Many ot the carriers send in long letters, in addition to the card form, and in a number of instances they have reported information …


Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson Jan 1947

Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson

Publications (WR)

The rock formations of the earth are great natural reservoirs in which a part of the water derived from rain and snow is stored. Water levels and artesian pressure in wells register the stages of these natural reservoirs. The changes in water levels or artesian pressure are indicative of the depletion or replenishment of the natural reservoirs. Systematic and periodic measurements of water levels and artesian pressure in wells have been made in Nevada, by State and Federal agencies from time to time. However, only a few of these measurements have ever been published. Under the cooperative arrangement between the …


Odor Report (1946), Walter Lawrance Oct 1946

Odor Report (1946), Walter Lawrance

Walter Lawrance Papers

No abstract provided.


Press Report (1946), Walter A. Lawrance Oct 1946

Press Report (1946), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Preliminary Investigations On The Effects Of Commerical Fishing On Game Fish In Lake Okeechobee And The St. John's River., Nelson Marshall Jul 1946

Preliminary Investigations On The Effects Of Commerical Fishing On Game Fish In Lake Okeechobee And The St. John's River., Nelson Marshall

RSMAS Technical Reports

No abstract provided.


Cloudburst Floods In Utah 1850-1938, Ralf R. Woolley Jan 1946

Cloudburst Floods In Utah 1850-1938, Ralf R. Woolley

Elusive Documents

No abstract provided.


Press Reports (1945), Walter Lawrance Oct 1945

Press Reports (1945), Walter Lawrance

Walter Lawrance Papers

No abstract provided.


Odor Report (1945), Walter A. Lawrance Sep 1945

Odor Report (1945), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Report On Refrigeration And Cold Storage Plants In Germany, R. L. Perry Aug 1945

Report On Refrigeration And Cold Storage Plants In Germany, R. L. Perry

United States Department of Commerce: Staff Publications

Korting Maschinen U Apparatenbau, Hannover/Linden: Interview with Herr Peter Fusch, owner.

Gesellschaft fur Markt un Kuhlhallen, Hamburg, & Eiswerke Hammonia, Hamburg: Interview with Herr Proebst, director.

Kuhltransit A.G., Hamburg: Interview with Hans Seler, Director, & Paul Prestzschendorfer, clerk.

Forschunggemeinschaft fur Kuhllagerung von Obst und Gemuse, Magdeburg: Interview with Emmi Boeck.


Interrogation Of Albert Speer And Members Of The Former Reich Ministry Of Armaments And War Production, Fulton Brig. Gen., Mckenzie Lt.Col., Blunden Maj. Jul 1945

Interrogation Of Albert Speer And Members Of The Former Reich Ministry Of Armaments And War Production, Fulton Brig. Gen., Mckenzie Lt.Col., Blunden Maj.

United States Department of Commerce: Staff Publications

Technical Report No. PB 430, includes:

REPORT NO, 12 of June 11, 1945. SUBJECT: General Policy on Production and on Research and Development.

Report No. 13 of 20 June 1945. SUBJECT: SPEER MINISTRY PERSONNEL.

REPORT No. 14 of 13 June 1945. SUBJECTS: A. Supply or Armaments to forces in the field. B. Production planning. C. Proportion between air frames and aero engines

REPORT NO. 16, based on the examination of SAUR, Chief of Technisches Amt, held at 1600 hours 23 June, 1945. SUBJECT: Information on Archives of the Technisches Amt


Range Land Of America And Some Research On Its Management, Laurence A. Stoddart Apr 1945

Range Land Of America And Some Research On Its Management, Laurence A. Stoddart

Faculty Honor Lectures

Although grazing of livestock has been a practice and a profession of man almost from his beginning only recently has range management reached anything approaching a pre~ cise science. Although ' trials and errors over the years brought to light much practical methodology for assuring high production from grazing land, still it remained for the plant physiologist and ecologist to find the whys and wherefores, and to advance new methods and new thoughts which promise to increase productivity still further and at the same time maintain the great range resource.

The peculiar land situation that marked America in her forma~ …


Some Pleistocene Mammalian Inhabitants Of Minnesota, Clinton R. Stauffer Apr 1945

Some Pleistocene Mammalian Inhabitants Of Minnesota, Clinton R. Stauffer

Journal of the Minnesota Academy of Science

No abstract provided.


Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson Mar 1945

Progress Report On The Ground-Water Resources Of The Las Vegas Artesian Basin, Nevada, George B. Maxey, C. Harry Jameson

Publications (WR)

Whether the tremendously increased population acquired by Las Vegas in the years 1940 to 1942 will be retained cannot at present be foretold. However, the valley will undoubtedly be expected to support a considerably larger population than it did at any time prior to 1940, and continually increasing demands on the water supply for innumerable pcacetimc activities must be anticipated. Therefore, a sound evaluation of tho ground water resources of Las Vegas Valley is directly in line with the other wisely progressive planning programs which are now operating or are taking shape in the valley as well as in the …


Comparison Of Census Methods For Pheasants In Nebraska, H. Elliot Mcclure Jan 1945

Comparison Of Census Methods For Pheasants In Nebraska, H. Elliot Mcclure

Nebraska Game and Parks Commission: Staff Research Publications

In plans for the Nebraska Upland Game Bird Pittman Robinson Project the censusing of pheasants and tabulation of population densities was of prime importance. A summary of the data at hand and a comparison of the various methods tried will be discussed here.


The Yale Forest In Tolland And Windham Counties, Connecticut, Walter H. Meyer, Basil A. Plusnin Jan 1945

The Yale Forest In Tolland And Windham Counties, Connecticut, Walter H. Meyer, Basil A. Plusnin

Yale School of the Environment Bulletin Series

No abstract provided.