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Articles 52561 - 52580 of 52580
Full-Text Articles in Physical Sciences and Mathematics
A Study Of The Vegetation Of Northeastern Arizona, Herbert Christian Hanson
A Study Of The Vegetation Of Northeastern Arizona, Herbert Christian Hanson
University Studies (University of Nebraska): Papers
The State of Arizona is marked by a great series of cliffs that extend from the mouth of the Grand Canyon of the Colorado River in the northwestern part of the state southeastward into New Mexico. This line of cliffs, rising 1000 to 4000 feet above the desert plains forms the southwestern and southern boundary of the great physiographic province called the Colorado Plateaus. It is roughly circular and includes northeastern Arizona, northwestern New Mexico, western Colorado, and a large part of Utah. This province is subdivided by a number of deep canyons and high cliffs into numerous plateaus. The …
Cocobolo, Samuel J. Record, George A. Garratt
Cocobolo, Samuel J. Record, George A. Garratt
Yale School of the Environment Bulletin Series
No abstract provided.
High Pressure Emergency Gates For Echo Dam, U.S. Department Of The Interior, Bureau Of Reclamation
High Pressure Emergency Gates For Echo Dam, U.S. Department Of The Interior, Bureau Of Reclamation
All U.S. Government Documents (Utah Regional Depository)
Invitations for bids, schedule, specifications and drawings of high pressure emergency gates for Echo Dam.
Grazing Lands In Utah, Washington Government Printing Office
Grazing Lands In Utah, Washington Government Printing Office
Elusive Documents
No abstract provided.
The Storage And Use Of Soil Moisture. Report Of Experimental Substation, North Platte, Nebraska, W. W. Burr
The Storage And Use Of Soil Moisture. Report Of Experimental Substation, North Platte, Nebraska, W. W. Burr
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The profitable cultivation of the non-irrigable lands in west central and western Nebraska is limited by the amount and efficient use of the precipitation. There are tracts of land in the sand hills and minor tracts of badly worn heavier soils where the need of soil fertility is becoming evident. But, in the main, the great problem at present is not one of soil fertility, but of how to get enough water to make use of the fertility now present. The rainfall of this section, which varies from an actual shortage to seldom more than a meager sufficiency, makes it …
Prolonging The Cut Of Southern Pine Part I. Possibilities Of A Second Cut; Part Ii. Close Utilization Of Timber, Herman H. Chapman, Ralph C. Bryant
Prolonging The Cut Of Southern Pine Part I. Possibilities Of A Second Cut; Part Ii. Close Utilization Of Timber, Herman H. Chapman, Ralph C. Bryant
Yale School of the Environment Bulletin Series
Part I - Since 1907 the Yale Forest School has conducted the field workand instruction of the Senior class in the spring term in coopera-tion with lumber companies located in the southern states. Thecompanies which have extended this cooperation are:
1907, Missouri Lumber and Mining Co., Grandin, Missouri.1908, Kaul Lumber Co., Hollins, Alabama.1909, Thompson Brothers Lumber Co., Doucette, Texas.1910, Louisiana Central Lumber Co., Clarks, Louisiana.1911, Thompson Brothers Lumber Co., Trinity, Texas.
191~, Crossett Lumber Co., Crossett, Arkansas.
Part II - The lack of close utilization of yellow pine timber is apparenton many operations in the South. In the following discussionsome …
Letter From Francis Mairs Huntington-Wilson To Gifford Pinchot, May 26, 1909, Francis Mairs Huntington-Wilson
Letter From Francis Mairs Huntington-Wilson To Gifford Pinchot, May 26, 1909, Francis Mairs Huntington-Wilson
Other Correspondence
The document is a carbon copy of a typed letter from the Assistant Secretary of State to Gifford Pinchot concerning the Conservation Congress.
Water: Its Inluence On Health And Disease, John Wilby
Water: Its Inluence On Health And Disease, John Wilby
Student and Lippitt Prize Essays
An insight into the health effects of water and diseases it may carry; provides alternative ideas and solutions for sanitizing.
Examination Of Water Supply Of Indianapolis, Alonzo S. Roberts
Examination Of Water Supply Of Indianapolis, Alonzo S. Roberts
Manuscript Thesis Collection
An assessment of municipal and well water supplies of Indianapolis in 1897.
Report Of The Geologist, Erwin Hinckley Barbour
Report Of The Geologist, Erwin Hinckley Barbour
Department of Earth and Atmospheric Sciences: Faculty Publications
THE PROBLEM OF OUR SOILS AND SOIL MOISTURE.
The soil survey of the state, which was begun by the author in November of 1892, has progressed to the point where it might be considered finished. That is, one or more samples of soils have been taken from every distinct soil region in the state-in fact, most of the separate counties are represented, and mechanical analyses of many of these have already been made. However, in consideration of the size of our counties, the work will not be declared complete until each is represented in the state museum by soil prisms …
The Deep Well At Minneopa, Minnesota, C. W. Hall
The Deep Well At Minneopa, Minnesota, C. W. Hall
Journal of the Minnesota Academy of Science
No abstract provided.
The Stillwater Deep Well, A. D. Meeds
The Stillwater Deep Well, A. D. Meeds
Journal of the Minnesota Academy of Science
No abstract provided.
Some Analyses Of Northwestern Coals, James A. Dodge
Some Analyses Of Northwestern Coals, James A. Dodge
Journal of the Minnesota Academy of Science
No abstract provided.
The Voice Of The Phi Sigma -- 1884 -- Volume 06, No. 02, Phi Sigma
The Voice Of The Phi Sigma -- 1884 -- Volume 06, No. 02, Phi Sigma
The Voice of the Phi Sigma
This item is part of the Phi Sigma collection at the College Archives & Special Collections department of Columbia College Chicago. Contact archives@colum.edu for more information and to view the collection.
Natural Sciences In The Public Schools, A. F. Bechdolt
Natural Sciences In The Public Schools, A. F. Bechdolt
Journal of the Minnesota Academy of Science
No abstract provided.
The Voice Of The Phi Sigma -- 1880 -- Volume 02, No. 05, Phi Sigma
The Voice Of The Phi Sigma -- 1880 -- Volume 02, No. 05, Phi Sigma
The Voice of the Phi Sigma
This item is part of the Phi Sigma collection at the College Archives & Special Collections department of Columbia College Chicago. Contact archives@colum.edu for more information and to view the collection.
Sixth Annual Report Of The United States Geological Survey Of The Territories, Embracing Portions Of Montana, Idaho, Wyoming, And Utah; Being A Report Of Progress Of The Explorations For The Year 1872, F. V. Hayden
All U.S. Government Documents (Utah Regional Depository)
Congress report of geological features and species discover for the territories of Montana, Idaho, Wyoming, and Utah.
Notes On The Mammoth Cave, To Accompany A Map, Edmund Lee
Notes On The Mammoth Cave, To Accompany A Map, Edmund Lee
Research Collections
Book by Edmund Lee, Civil Engineer, produced to accompany an 1835 map of Mammoth Cave, one of the "wonders of the World."
Cercidiphyllum Japonicum (Katsura) Id, Caidan Zhuoma
Cercidiphyllum Japonicum (Katsura) Id, Caidan Zhuoma
BIO 140 Arboretum Project
Location: Between O'Hare and McKillop
The Aerosphere As A Network Connector Of Organisms And Their Diseases, Jeremy D. Ross, Eli S. Bridge, Diann J. Prosser, John Y. Takekawa
The Aerosphere As A Network Connector Of Organisms And Their Diseases, Jeremy D. Ross, Eli S. Bridge, Diann J. Prosser, John Y. Takekawa
United States Geological Survey: Staff Publications
Aeroecological processes, especially powered flight of animals, can rapidly connect biological communities across the globe. This can have profound consequences for evolutionary diversification, energy and nutrient transfers, and the spread of infectious diseases. The latter is of particular consequence for human populations, since migratory birds are known to host diseases which have a history of transmission into domestic poultry or even jumping to human hosts. In this chapter, we present a scenario under which a highly pathogenic avian influenza (HPAI) strain enters North America from East Asia via postmolting waterfowl migration. We use an agent-based model (ABM) to simulate the …