21,667 Matching Results

Search Results

Results: 1 - 24 next
open access

Revision of the North American Pocket Mice

Description: From introductory remarks: "Classification study of the North American pocket mouse based on about 170 specimens. Results of study increased recognized species to 18 and subspecies to 3 as well as shifting several well known names to other forms."
Date: October 25, 1889
Creator: Merriam, C. Hart
Partner: UNT Libraries Government Documents Department
open access

Descriptions of Twenty-six New Species of North American Mammals

Description: Brief description of new species of ground squirrels, Evotomys, Marten, Molossus, prairie dog, kangaroo rats, pocket gopher, and Hesperomys.
Date: October 8, 1890
Creator: Merriam, C. Hart
Partner: UNT Libraries Government Documents Department
open access

Revision of the North American Bats of the Family Vespertilionidæ

Description: Classification of more than 3,000 bats to enable correct specimen identification based upon material contained in the collection of the Biological Survey of the U.S. Department of Agriculture.
Date: October 16, 1897
Creator: Miller, Gerrit S. (Gerrit Smith), 1869-1956
Partner: UNT Libraries Government Documents Department
open access

Results of a Biological Survey of Mount Shasta California

Description: From introduction: "Biological survey of northern California from the Madeline Plains to the Pacific Ocean and from the Oregon boundary to Lassen Butte and parts of the Sierra, with Mount Shasta occupying a nearly central position."
Date: October 28, 1899
Creator: Merriam, C. Hart
Partner: UNT Libraries Government Documents Department
open access

Results of a Biological Reconnaissance of the Yukon River Region

Description: Brief summary of the Yukon River region, including itinerary of expedition, faunal districts, new species identified, and mammals and birds present.
Date: October 6, 1900
Creator: Osgood, Wilfred H. & Bishop, Louis B.
Partner: UNT Libraries Government Documents Department
open access

A Biological Investigation of the Hudson Bay Region

Description: Results of 1900 biological expedition to document the Hudson Bay. Examination of species of plants and animals.
Date: October 31, 1902
Creator: Preble, Edward A.
Partner: UNT Libraries Government Documents Department
open access

Biological Survey of Texas

Description: From introduction: "Report on the biological survey of Texas conducted over a number of years through collection of information and specimens. Focus on life zones and their subdivisions and on the mammals and reptiles of the state."
Date: October 24, 1905
Creator: Bailey, Vernon
Partner: UNT Libraries Government Documents Department
open access

A New Form of Standard Resistance

Description: Report issued by the Bureau of Standards over new developments of electrical resistivity in manganin wire coils. The results of the developments are discussed. This report includes tables, illustrations, and photographs.
Date: October 1, 1908
Creator: Rosa, Edward B.
Partner: UNT Libraries Government Documents Department
open access

A Biological Investigation of the Athabaska-Mackenzie Region

Description: From introduction: "Report of 1901 expedition of Athabaska-Mackenzie region to obtain representative collections of the mammals, birds, and plants."
Date: October 26, 1908
Creator: Preble, Edward A.
Partner: UNT Libraries Government Documents Department
open access

Biological Investigations in Alaska and Yukon Territory

Description: From letter of transmittal: "Report on biological investigations made in the interior of Alaska and the Yukon territory in 1903 and 1904. It consists of separate reports on three distinct areas, describing the physiography and giving detailed accounts of the animal life of the region."
Date: October 7, 1909
Creator: Osgood, Wilfred H.
Partner: UNT Libraries Government Documents Department
open access

Revision of the Wood Rats of the Genus Neotoma

Description: From introduction: "Result of a study of the wood rats in the collection of the Biological Survey, numbering over 3,000 specimens, including topotypes of most of the species."
Date: October 19, 1910
Creator: Goldman, Edward A.
Partner: UNT Libraries Government Documents Department
open access

Report on Behavior of Aeroplanes in Gusts

Description: Part 1 presents the results of a wind tunnel test of a biplane model with an 18 inch span. The lift, drift, and pitching moment were measured for a series of angles of incidence corresponding to the maximum possible changes of flight attitude. Only the discussion of symmetrical or longitudinal changes is given. From the observed rate of variation of the forces and pitching moment, it was possible to calculate the derivatives needed in the complete theory of longitudinal stability in still air.
Date: October 7, 1915
Creator: Hunsaker, Jerome C. & Wilson, Edward Bidwell
Partner: UNT Libraries Government Documents Department
open access

A Reconnaissance For Oil Near Quanah, Hardeman County Texas

Description: This report documents the examination for oil in the vicinity of Quanah, Hardeman County Texas during the fall of 1914.
Date: October 9, 1915
Creator: Wegemann, Carroll H.
Partner: UNT Libraries Government Documents Department
open access

Underground Latrines for Mines

Description: Technical paper issued by the Bureau of Mines over the introduction of underground latrines in mines to increase sanitary conditions. The improvements made by underground latrines are presented and discussed. This paper includes photographs, and illustrations.
Date: October 1916
Creator: White, Joseph H.
Partner: UNT Libraries Government Documents Department
open access

Life Zone Investigations in Wyoming

Description: Characterizes five transcontinental life zones in Wyoming; defines their extent and limits; lists mammal, breeding bird, reptile, amphibian, and plant species; and provides notes on distribution and abundance of trees observed during the survey.
Date: October 3, 1917
Creator: Cary, Merritt
Partner: UNT Libraries Government Documents Department
open access

Methods of Shutting Off Water in Oil and Gas Wells

Description: Report discussing methods of shutting off water in oil and gas wells in California, the Midwest, and the Gulf. Emphasis is on the methods used in California and suggestions for modifying California methods to make them applicable in other localities.
Date: October 1918
Creator: Tough, F. B.
Partner: UNT Libraries Government Documents Department
open access

Theory of an Airplane Encountering Gusts, 3

Description: Report presents a new method for solving linear equations developed by Bromwich, which is suited to determine the motion for any particular gust, when the machine started from equilibrium, without the trouble of determining the constants of integration in the complementary function. (author).
Date: October 15, 1918
Creator: Wilson, Edwin Bidwell
Partner: UNT Libraries Government Documents Department
open access

Approximate Quantitative Microscopy of Pulverized Ores, Including the Use of the Camera Lucida

Description: Technical paper issued by the Bureau of Mines over microscopy of pulverized ores. As stated in the introduction, "this paper, which deals with the study of pulverized ores and the use of the camera lucida in such work, discusses an investigation undertaken at the Seattle and the Golden mining experiment stations of the Bureau of Mines" (p. 3). This paper includes tables, illustrations, and photographs.
Date: October 1919
Creator: Coghill, Will H. & Bonardi, J. P.
Partner: UNT Libraries Government Documents Department
open access

Notes on Specifications for French Airplane Competitions

Description: Given here are the rules officially adopted by the Aeronautical Commission of the Aero Club of France for a flight competition to be held in France in 1920 at the Villacoublay Aerodrome. The prize will be awarded to the pilot who succeeds in obtaining the highest maximum and lowest minimum speeds, and in landing within the shortest distance.
Date: October 1920
Creator: Margoulis, W.
Partner: UNT Libraries Government Documents Department
open access

Recovery of Gold from Black Sand Tailings

Description: Report on the recovery of gold from black sand tailings, based on tests conducted at the U.S. Bureau of Mines' Alaska Station.
Date: October 1920
Creator: Gross, John
Partner: UNT Libraries Government Documents Department
open access

Talc Mining in New York

Description: Report issued by the U.S. Bureau of Mines on the talc deposits in New York state. The report includes details on the geology of the deposits, and the mining and milling of the talc. This report contains illustrations.
Date: October 1920
Creator: Ladoo, Raymond B.
Partner: UNT Libraries Government Documents Department
open access

Tests of the Daimler D-IVa Engine at a High Altitude Test Bench

Description: Reports of tests of a Daimler IVa engine at the test-bench at Friedrichshafen, show that the decrease of power of that engine, at high altitudes, was established, and that the manner of its working when air is supplied at a certain pressure was explained. These tests were preparatory to the installation of compressors in giant aircraft for the purpose of maintaining constant power at high altitudes.
Date: October 1920
Creator: Noack, W. G.
Partner: UNT Libraries Government Documents Department
open access

N.A.C.A. Recording Air Speed Meter

Description: A new type of air speed meter is described which was designed by the technical staff of the National Advisory Committee for Aeronautics. The instrument consists essentially of a tight metal diaphragm of high natural period which is acted upon by the pressure difference of a pitot-static head. The resulting deflection of this diaphragm is recorded optically on a moving film.
Date: October 1921
Creator: Norton, F. H.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen