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Articles 158491 - 158520 of 159287
Full-Text Articles in Entire DC Network
Plants And Animals Used As Sources Of Dye, Paint, And Skin Dressing In The Southwest, Mary Dennis
Plants And Animals Used As Sources Of Dye, Paint, And Skin Dressing In The Southwest, Mary Dennis
Biology ETDs
The area comprising the Southwest is somewhat disputed by different authors, but some idea of its extent and general features as well as some conception of the ethnology in relation to the tribes within the area is needed for an understanding of the scope of this investigation.
A Comparative Study Of The Skull And Long Bones Of The More Common Small Mammals Of Bernalillo County, New Mexico, Robert Theodore Fincke
A Comparative Study Of The Skull And Long Bones Of The More Common Small Mammals Of Bernalillo County, New Mexico, Robert Theodore Fincke
Biology ETDs
The identification of animals or parts of animals without the aid of external characteristics is confusing problem in many fields of zoology. This is especially true in some studies as life histories and the food habits of predators. A problem of this type is even more confusing in New Mexico because relatively little work has been completed on the taxonomy and the distribution of the native fauna.
The Food Of The Frog, Paul Schmitt
The Food Of The Frog, Paul Schmitt
Bachelors’ Theses
All living organisms whether they be the smallest single cells or the largest mammals demand nourishment for their multifarious physiological processes. Popular and pseudoscientific thinkers and writers speak of nutrition in terms of food consumed, while true scientific investigators consider nutrition in relation to the actual assimilation of the components of food called proteins, fats, and carbohydrates.
The Histology Of The Grog's Tongue (Rana Pipiens), Michael William Mille
The Histology Of The Grog's Tongue (Rana Pipiens), Michael William Mille
Bachelors’ Theses
The tongue is generally represented in all vertebrates although it varies widely in the extent to which it is developed. Among the fish it occurs in its most primitive condition. It is called a primary tongue and is merely a fleashy fold of dense connective tissue developed from the floor of the mouth between the hyoid and mandibular arches, the hyoid frequently extending into it and supporting it. It is incapable of motion except as moved by the supporting skeleton for it lacks intrinsic muscles. It is sensory, having both tactile and gustatory functions. It is often papillose, and in …
The Mammalian Erythrocyte, H.J. Werner
The Mammalian Erythrocyte, H.J. Werner
Bachelors’ Theses
An investigation of bibliographies shows that the red corpuscles of the blood have been studied very extensively, in fact, wore so than any cell in the mammalian body. The study has progressed vigorously and from varied points of view.
The Relationship Of Auximones And Phototropic Responses To Plant Growth, H. Eugene Hile Jr.
The Relationship Of Auximones And Phototropic Responses To Plant Growth, H. Eugene Hile Jr.
Biology Honors Papers
This 22 page thesis examines the nature and function of auximones and phototropic responses in plant growth.
Drainage Controls In The Austin Chalk Cuesta Area Of Dallas, Texas, E. F. Blakemore Jr.
Drainage Controls In The Austin Chalk Cuesta Area Of Dallas, Texas, E. F. Blakemore Jr.
Field and Laboratory
The Austin chalk cuesta is a prominent topographic feature which trends northeast across central Texas from Austin through Waco and Dallas. The escarpment is formed through differential erosion of beds at the contact between the Austin chalk and Eagle Ford: shale, the overlying chalk forming the cuesta. The area described in this paper is situated 6 miles west of Dallas, south of the Trinity River Cross Valley.
Weather And Plant-Development Data As Determinants Of Grazing Periods On Mountain Range, David F. Costello, Raymond Price
Weather And Plant-Development Data As Determinants Of Grazing Periods On Mountain Range, David F. Costello, Raymond Price
Aspen Bibliography
Fundamental in economical range-resource management is the determination of proper grazing periods. It is of prime importance to be able to establish a date in the spring when the range has produced sufficient feed to keep livestock in thrifty condition, when it is reasonably safe from excessive trampling and packing of the soil, and when the more important key forage plants have attained sufficient development to withstand grazing use. Such opening dates, as well as the time to defer and rotate grazing and to remove livestock from the range, are dependent in part on the prevailing weather conditions and on …
Staining Techniques In The Study Of The Blood, Donald E. Winnik
Staining Techniques In The Study Of The Blood, Donald E. Winnik
Bachelors’ Theses
Since the invention of the microscope, the study of the blood and its constituents has been a major interests of histologists and hematologists. The vast amount of material written about the subject could not have been accomplished without the development and use of staining techniques which made possible a more precise observation of the nature of the blood. At the present time there are many procedures and stains which vary greatly in their application and use. It is the purpose of this thesis to review these many methods and catalogue them according to their application in the blood techniques.
A Cytological Study Of The Central Body In Oscillatoria Formosa And Oscillatoria Limosa, Ruth Joanna Dornfeld
A Cytological Study Of The Central Body In Oscillatoria Formosa And Oscillatoria Limosa, Ruth Joanna Dornfeld
Bachelors’ Theses
No abstract provided.
Amount Of Underground Plant Materials In Different Grassland Climates, S. B. Shively, J. E. Weaver
Amount Of Underground Plant Materials In Different Grassland Climates, S. B. Shively, J. E. Weaver
Department of Agronomy and Horticulture: Faculty Publications
From the highlands of central Mexico entirely across the United States and northward into Canada extends the great midcontinental area of grassland. From this central mass, prairie extends westward across Wyoming into eastern Utah, and southwestward through northern New Mexico into northern Arizona. Other grasslands in the northwest cover most of southern Idaho, a part of northern Utah, large areas in eastern Oregon and Washington, and recur in British Columbia. The Pacific prairie occupies the Great Valley of California, and the Desert Plains grassland much of southern Arizona and New Mexico and southwestern Texas. Together they constitute the Grassland or …
A Study Of The Sage Grouse (Centrocercus Urophasianus), With Special Reference To Life History, Habitat Requirements, And Numbers And Distribution, Lynn A. Griner
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The sage grouse or sage hen Centrocercus urophasianus (Bonaparte) was formerly the most important upland native game bird of the Western States, but has steadily been declining in numbers over most of its range in recent years. This reduction in numbers has aroused the interest of the conservationists of the nation, who, for the past decade or more, have been proposing that something be done for this game species. In recent years along with this interest of the conservationists, there has been an increasing local interest among the sportsmen of the West, with the result that several groups have become …
The Ecology Of Agropyron Inerme On Protected And Heavily Grazed Range Land In Cache Valley, Utah, Wallace R. Hanson
The Ecology Of Agropyron Inerme On Protected And Heavily Grazed Range Land In Cache Valley, Utah, Wallace R. Hanson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
During the past decade much attention has been attracted to the great range lands of the West. The inherently low productivity of these arid lands coupled with abnormal drought and constantly heavy use by livestock because of lack of grazing control, have caused these lands to become greatly depleted over most of the West. That the vegetation on most range land in the intermountain states is depleted appreciably is evident to the careful observer. Undoubtedly the vegetation of much of the range has decreased in quantity, but more serious in many cases is the decrease in quality. Valuable forage species …
Fifty-Third Annual Meeting Of The Iowa Academy Of Science And The Eighth Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1939, Iowa Academy Of Science
Fifty-Third Annual Meeting Of The Iowa Academy Of Science And The Eighth Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1939, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
A List Of Birds Observed On The 1938 Semple Expedition To Northeastern México, George M. Sutton, Thomas D. Burleigh
A List Of Birds Observed On The 1938 Semple Expedition To Northeastern México, George M. Sutton, Thomas D. Burleigh
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
The Importance Of Local Mosquito Surveys In Minnesota, William A. Riley
The Importance Of Local Mosquito Surveys In Minnesota, William A. Riley
Journal of the Minnesota Academy of Science
No abstract provided.
A Peripheral Vascular System As Seen By Means Of A Clark Window In The Ear Of The Rabbit, T. H. Seldon, R. H. Barrett, H. E. Essex
A Peripheral Vascular System As Seen By Means Of A Clark Window In The Ear Of The Rabbit, T. H. Seldon, R. H. Barrett, H. E. Essex
Journal of the Minnesota Academy of Science
No abstract provided.
A Human Hereditary Trait Appearing In Offspring From A Cousin-Marriage, C. P. Oliver
A Human Hereditary Trait Appearing In Offspring From A Cousin-Marriage, C. P. Oliver
Journal of the Minnesota Academy of Science
No abstract provided.
Star-Recessive, A Spontaneous Mutation In Drosophila Melanogaster, Edward B. Lewis
Star-Recessive, A Spontaneous Mutation In Drosophila Melanogaster, Edward B. Lewis
Journal of the Minnesota Academy of Science
No abstract provided.
A Key To Snakes Of Minnesota, Milton D. Thompson
A Key To Snakes Of Minnesota, Milton D. Thompson
Journal of the Minnesota Academy of Science
No abstract provided.
Growth Substances And Nutrition Of Protozoa, Alfred M. Elliott
Growth Substances And Nutrition Of Protozoa, Alfred M. Elliott
Journal of the Minnesota Academy of Science
No abstract provided.
Light And Pituitary Activity In The Bird, Adolph R. Ringoen
Light And Pituitary Activity In The Bird, Adolph R. Ringoen
Journal of the Minnesota Academy of Science
No abstract provided.
Kentucky Warbler (Vol. 15, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 15, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The Role Of Forest Fires In The Reproduction Of Black Spruce, R. K. Lebarron
The Role Of Forest Fires In The Reproduction Of Black Spruce, R. K. Lebarron
Journal of the Minnesota Academy of Science
No abstract provided.
The Cellular Changes Induced In The Testes Of The Albino Rat By Artificial Cryptorchidism And X-Radiation, Arthur J. Gatz
The Cellular Changes Induced In The Testes Of The Albino Rat By Artificial Cryptorchidism And X-Radiation, Arthur J. Gatz
Journal of the Minnesota Academy of Science
No abstract provided.
The Rhamnales Of Wisconsin: A Taxonomic Study, Richard W. Pohl
The Rhamnales Of Wisconsin: A Taxonomic Study, Richard W. Pohl
Bachelors’ Theses
The extensive taxonomic literature on the North American Vites was reviewed by L.H. Bailey (3) in 1934. Among the earlier writers, Major John Le Conte published "An Enumeration of the Vines of North America" (32) in the Proceedings of the Academy of Natural Sciences of Philadelphia for 1852-1853. Dr. George Engelmann of St. Louis published a short review of the North American grapes in the American Naturalist for August,1868. He mentioned ten species, giving formal descriptions for none, and commented upon the work of Rafinesque, who had attempted to describe the North American species of Vitis about fifty years previously, …
The Growth Rate Of Wall-Eyed Pike (Stizostedion Vitreum (Mitchill) In Various Lakes Of Minnesota, Samuel Eddy, Kenneth Carlander
The Growth Rate Of Wall-Eyed Pike (Stizostedion Vitreum (Mitchill) In Various Lakes Of Minnesota, Samuel Eddy, Kenneth Carlander
Journal of the Minnesota Academy of Science
No abstract provided.
Incidence Of Infection Of Fish With Clinostomum Marginatum In Northern Minnesota, Walter C. Schuling
Incidence Of Infection Of Fish With Clinostomum Marginatum In Northern Minnesota, Walter C. Schuling
Journal of the Minnesota Academy of Science
No abstract provided.
Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott
Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott
Nebraska Agricultural Experiment Station: Historical Circulars
In Nebraska, a hustling frontier state in 1887, the legislature hesitated not at all in taking advantage of the provisions of the Hatch Act, and now that fifty years have elapsed since the Station was founded, seventy-five years since the Land Grant College Act was passed and the U. S. Department of Agriculture established, and almost twenty-five years since the Agricultural Extension Service was added, it seems worth while to present a general summary of achievement within the state. The main object will be to show some of the important things that have been learned through the investigations of the …