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Articles 36091 - 36120 of 36374
Full-Text Articles in Entire DC Network
The Blood Of The Frog, Leonard Gorenstein
The Blood Of The Frog, Leonard Gorenstein
Bachelors’ Theses
The circulatory system of the vertebrates is one of the most important found in the animal kingdom. The reason being that it carries food, oxygen, and hormones to all parts of the body and also removes all types of waste materials. this system involves a pump-like apparatus, called the heart, to which are attached tube-like vessels called arteries and veins. A liquid called a fluid-tissue circulates in this closed transportation system which is said to be closed in order to distinguish it from a semi-closed or open system in which a sinus or tissue cavity separates certain arteries and veins. …
Kidney Of The Frog, Felix Taubman
Kidney Of The Frog, Felix Taubman
Bachelors’ Theses
The frog has been used exclusively in both high school and college as the main source of experimental biological and zoological studies. Because it is so easily obtained and so finely adapted to our purposes, we chose it as the specimen upon which to do our thesis work. Much has been done experimentally on the kidneys with the frog. The purpose of this thesis is to present a general view of the external and microscopic anatomy of the frog kidney and with this as a groundwork to present the problems of secretion; whether secretion is carried on by the renal …
Coloration In The Frog, Elizabeth Mary Pluck
Coloration In The Frog, Elizabeth Mary Pluck
Bachelors’ Theses
The color of an animal is by no means a matter of chance. It depends upon many factors, such as, the presence or absence of certain hormones within the body, the temperature of the animal's surroundings, the amount of light which is present, and certain chemical reagents with which the animal comes in contact. Animals have both color and coloration; and it is necessary to discriminate between the two terms. Color is associated with actual shades or hues as red, green, or yellow; whereas, the term coloration refers to the manner in which the individual colors are arranged into patterns.
The Feeding Value Of Certain Duck Food Plants Of The Bear River Migratory Bird Refuge As Determined By Chemical Analysis, Dale Clair Christensen
The Feeding Value Of Certain Duck Food Plants Of The Bear River Migratory Bird Refuge As Determined By Chemical Analysis, Dale Clair Christensen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The study of bird feeding problems has become a prominent factor in wild life management. This is true especially with respect to the evaluation of recently established migratory bird refuges. In 1929 the Federal Government assumed control of a large area of land located on the Bear River Bay of Great Salt Lake for the purpose of providing a sanctuary for water fowl. Dykes were built and the areas inside these dykes flooded with fresh water from Bear River. During subsequent years aquatic and marsh plants* developed abundantly and apparently have provided satisfactory feeding and nesting grounds for migratory birds. …
Hiemenz's Study Of The Heron Lake Franklin's Gull Colony, George W. Friedrich
Hiemenz's Study Of The Heron Lake Franklin's Gull Colony, George W. Friedrich
Journal of the Minnesota Academy of Science
No abstract provided.
Kentucky Warbler (Vol. 14, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 14, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The Spleen Of The Frog, Clifford F. Moran
The Spleen Of The Frog, Clifford F. Moran
Bachelors’ Theses
Although we of today are living In a relatively advanced state of civilization, there still remains to be solved by man many familiar mysteries. These are found not only in the physical order but in the chemical and biological as well. It seems that the greater strides man takes toward the solution of his difficulties, the more other ones crop up to plague him. With the conquering of such deadly diseases as Diphtheria, Malaria and Scarlet Fever, man once dared to dream about a universe free from sickness. Yet today we find that three others have arisen which are causing …
The Utilization Of Food Elements By Growing Chicks. Iv. Meat Meal And Fish Meal Compared With Meat Meal, Fish Meal, And Soybean Meal As Protein Concentrates, C. W. Ackerson, M. J. Blish, F. E. Mussehl
The Utilization Of Food Elements By Growing Chicks. Iv. Meat Meal And Fish Meal Compared With Meat Meal, Fish Meal, And Soybean Meal As Protein Concentrates, C. W. Ackerson, M. J. Blish, F. E. Mussehl
Nebraska Agricultural Experiment Station: Historical Research Bulletins
1. Two groups of 15 newly hatched chicks were fed rations differing in the composition of the protein concentrates. One lot received ration 2MFX, in which the concentrate was a mixture of meat meal and fish meal. In ration 3MFSX one-third of the meat and fish meals was replaced by soybean meal. The protein levels of the concentrates and of the rations as fed, were identical. 2. The composition of the chicks at the end of the feeding trial was determined, and the composition of the gains calculated. 3. The gain in live weight per gram of nitrogen or dry …
Kentucky Warbler (Vol. 14, No. 1), Kentucky Library Research Collections
Kentucky Warbler (Vol. 14, No. 1), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Nebraska Bird Review (January-June 1938) 6(1), Whole Issue
Nebraska Bird Review (January-June 1938) 6(1), Whole Issue
Nebraska Bird Review
CONTENTS
Birds of the Crescent Lake Migratory Bird Refuge. By Wilson Tout .............................. 1
General Notes .................. . . .. . . .. . . . . . . .. 4
The Mourning Dove Case. . . . . . . . . .. . . . . . . . . . . . . . . . .. 23
Index To Volume Vi
Nebraska Bird Review
Aechmorphorus occidentalis, 1.
Agelaius phoeniceus fortis, 4.
American Golden-eye, 36.
Anus platyrhynchos platyrhynchos, 2.
Anderson, Dana, article by, 29.
Antrostomus vociferus vociferus, 7.
Aquila chrysaetos canadensis, 17.
Ardea herodias treganzai, 1.
Asyndesmus lewis, 14.
Avocet, 2, 14, 38.
. . .
Yellowlegs, Greater, 11, 12, 44; Lesser, 2, 9, 10, 11, 13, 18, 37, 44, 47.
Yellow-throat, Maryland (subsp.), 18, 40; Northern Maryland, 13; Western Maryland, 4, 10, 11, 47.
Youngworth, Wm., articles by, 6, 17.
Zenaidura macroura marginella, 3.
Notes On The Hypogaeic Ant, Proceratium Silaceum Roger, Clarence Hamilton Kennedy
Notes On The Hypogaeic Ant, Proceratium Silaceum Roger, Clarence Hamilton Kennedy
Faculty Scholarship
Excerpt:
To complete the technical description of the species we give first a description of the male, which to date has remained undescribed.
A Study Of The Relationship Between Blood Flow And Limb Volume In The Hind Limb Of The Dog., J. P. Holt
A Study Of The Relationship Between Blood Flow And Limb Volume In The Hind Limb Of The Dog., J. P. Holt
Electronic Theses and Dissertations
No abstract provided.
Bobwhite History, Muller Eugene Bogle
Bobwhite History, Muller Eugene Bogle
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
A later reprinting of the first edition with editorial amendments of Bobwhite History (1938) by Muller Eugene Bogle.
The Utilization Of Food Elements By Growing Chicks. Iii. A Comparison Of Calcium Carbonate And Calcium Sulfate As Sources Of Calcium, C. W. Ackerson, M. J. Blish, F. E. Mussehl
The Utilization Of Food Elements By Growing Chicks. Iii. A Comparison Of Calcium Carbonate And Calcium Sulfate As Sources Of Calcium, C. W. Ackerson, M. J. Blish, F. E. Mussehl
Nebraska Agricultural Experiment Station: Historical Research Bulletins
I. The utilization of nitrogen, calcium, and phosphorus was studied with two lots of growing chicks by means of growth and body-analysis experiments. One lot had calcium added to the ration in the form of sulfate and the second received calcium carbonate, the additions being made on an equivalent calcium basis so that the experimental variable was the source of the calcium. 2. The percentage rate of gain and the gain per gram of nitrogen fed were identical in the two lots. 3. No significant differences were found in the utilization of nitrogen, calcium, or phosphorus by the birds of …
Kentucky Warbler (Vol. 13, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 13, No. 4), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The Utilization Of Food Elements By Growing Chicks. Ii. A Comparison Of Protein Concentrates From Single And Multiple Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl
The Utilization Of Food Elements By Growing Chicks. Ii. A Comparison Of Protein Concentrates From Single And Multiple Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl
Nebraska Agricultural Experiment Station: Historical Research Bulletins
1. The effect of adding to a basal ration a protein concentrate consisting of meat scraps alone was compared with one made up of a mixture of meat scraps, fish meal, and dried buttermilk by means of growth and body-analysis experiments. 2. The percentages of nitrogen, calcium, and phosphorus contained in the chicks of the lot fed the mixture of three proteins were slightly higher than those found in the lot fed meat scraps as the concentrate. 3. The percentage rate of gain and the gain per gram of nitrogen fed were greater in the lot fed the mixture of …
Whole Issue Nebraska Bird Review (October 1937) 5(4)
Whole Issue Nebraska Bird Review (October 1937) 5(4)
Nebraska Bird Review
Contents
A Study of the Distribution and Migration of the Great Horned Owls in the Missouri Valley Region. By Myron H. Swenk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 79
General Notes ........................................... 106
Index ................................................... 112
Range Cattle Industry In Nebraska To 1890, David Robert Burleigh
Range Cattle Industry In Nebraska To 1890, David Robert Burleigh
Department of History: Dissertations, Theses, and Student Research
Range Cattle Industry in Nebraska to 1890
Chapter 1. Beginnings
Chapter 2. The cattleman occupies western nebraska
Chapter 3. The open range in operation
Chapter 4. Cattle losses: Disease, weather, Indians, rustlers
Chapter 5. The cattle boom
Chapter 6. Crisis in the range industry
Chapter 7. Economics of the range
Bibliography
Kentucky Warbler (Vol. 13, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 13, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Whole Issue Nebraska Bird Review (July 1937) 5(3)
Whole Issue Nebraska Bird Review (July 1937) 5(3)
Nebraska Bird Review
Contents
A History of Nebraska Ornithology. III. Period of the Explorations of the Early Nineteenth Century (1804-1854). The Astorians with John Bradbury and Thomas Nuttall, Manuel Lisa's 1811 Expedition with Henry Brackenridge, and the Returning Astorians under Robert Stuart (1812- 1813). By Myron H. Swenk .......................... 51
General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 57
N. O. U. Cooperative Bird Migration List For …
Relation Of Height At Withers And Chest Girth To Live Weight Of Dairy Cattle Of Different Breeds And Ages, H. P. Davis, R. F. Morgan, Samuel Brody, A. C. Ragsdale
Relation Of Height At Withers And Chest Girth To Live Weight Of Dairy Cattle Of Different Breeds And Ages, H. P. Davis, R. F. Morgan, Samuel Brody, A. C. Ragsdale
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The size of a dairy cow is important from the standpoint of feed consumption and economy of production and also as an indication of the expected size of offspring. The ultimate disposal of dairy cattle is for beef, and the measure of returns is based upon size and condition. A method for the determination of the approximate weights of dairy females, where scales are not available, is needed. Measurements of dairy cattle which show development and skeletal growth by ages in relationship to weight are presented here for four different dairy breeds.
The Utilization Of Food Elements By Growing Chicks. I. A Comparison Of Protein Concentrates From Animal And Vegetable Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl
The Utilization Of Food Elements By Growing Chicks. I. A Comparison Of Protein Concentrates From Animal And Vegetable Sources, C. W. Ackerson, M. J. Blish, F. E. Mussehl
Nebraska Agricultural Experiment Station: Historical Research Bulletins
1. The effects of adding to a basal ration, protein concentrates from animal and vegetable sources were studied by means of growth and body-analysis experiments. 2. There was a small increase in the nitrogen content of the chicks fed the animal protein concentrate, but no differences appeared between lots with respect to their content of calcium and phosphorus. 3. The percentage rate of gain and the gain per gram of nitrogen fed were greater in the lot fed the animal protein concentrate. 4. The lot fed the animal protein concentrate retained more of the nitrogen fed, but less of the …
The Histology Of The Small And Large Intestine Of Rana Pipens, Chester R. Mantey
The Histology Of The Small And Large Intestine Of Rana Pipens, Chester R. Mantey
Bachelors’ Theses
The Frog in past years and in most recent years, has been used to a great extent in the experimental sciences. In the field of physiology, the Frog becomes a great factor for experimental purpose. In addition, the science of pharmacology also makes use of the Frog in determining the actions of many drugs. But, this thesis will endeavor to take up the histology of an organ of Rana pipens, thus limiting the subject matter to this particular phase. It would only be proper at this time, to cite some of the important early workers in Histology. Bichat (1800) …
Kentucky Warbler (Vol. 13, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 13, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Block And Bridle Annual 1937
Block and Bridle Annual (1933–2021)
Membership
Regular Activites
Feeders' Day
Emergency Livestock Day
Junior Ak-Sar-Ben Show
Junior Ak-Sar-Ben Ball
Block and Bridle Livestrock Juding Contest
High School Livesstock Judging contest
Women's Meat Judging Contest
Men's Meat Judging Contest
Initiation of New Members.
Special Activities
Omaha Day
Saddle and Sirloin Medal Essay Contest
Financial Statement
Publicity Obtained
Whole Issue Nebraska Bird Review (April 1937) 5(2)
Whole Issue Nebraska Bird Review (April 1937) 5(2)
Nebraska Bird Review
Contents
Banding and Bird Study. By O. A. Stevens ... 27
General Notes ... 29
Editorial Page ... 34
In Memoriam. Lawrence Bruner ... 35
In Memoriam, Lawrence Bruner, Myron H. Swenk
In Memoriam, Lawrence Bruner, Myron H. Swenk
Nebraska Bird Review
On January 30, 1937, at his home at 3033 Deakin Street in Berkeley, California, Lawrence Bruner, pioneer American economic entomologist and a world authority on grasshoppers and related insects (Orthoptera), as well as the person who more than any other individual was responsible for the organization of the Nebraska Ornithologists’ Union, passed away after a severe illness of a few days that culminated a rather extended period of gradually declining health. It is difficult to epitomize any account of the life accomplishments of this man, because they were so many and varied, and perhaps for this purpose there …
Judging Quality In Dairy Products, P. A. Downs
Judging Quality In Dairy Products, P. A. Downs
Nebraska Agricultural Experiment Station: Historical Circulars
In the dairy industry increasing attention is being paid to the question of quality of products. The well established system of buying and selling butter and cheese on the basis of quality by score or grade is practiced in the principal markets of the world. The other dairy products, while not marketed by score, are receiving more and more attention in this respect. As more information becomes available and the judging better standardized, other dairy products will doubtless be sold by grade.
Daily Light Ration And Gonadal Activity In The English Sparrow, Passer Domesticus, A. R. Ringoen, A. Kirschbaum
Daily Light Ration And Gonadal Activity In The English Sparrow, Passer Domesticus, A. R. Ringoen, A. Kirschbaum
Journal of the Minnesota Academy of Science
No abstract provided.