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Hybridization Between Northern Pike (Esox Lucius) And Muskellunge (Esox Masquinongy), Samuel Eddy

Journal of the Minnesota Academy of Science

No abstract provided.

Kentucky Warbler (Vol. 20, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Agricultural Research In South Dakota: Fifty-Seventh Annual Station Report, July 1, 1943 - June 30, 1944, South Dakota State College Of Agriculture And Mechanic Arts

Agricultural Experiment Station and Research Farm Annual Reports

No abstract provided.

Index To Volume Xii, Jane B. Swenk

Nebraska Bird Review

Abies lasiocarpa, 41.

Alectoris graeca chukar, 2.

Audubon Wildlife Screen Tours, 22, 56.

Avocet, 34.

Bald pate, 33.

Bartramia longicauda, 2.

Bittern, American, 13, 21, 33.

Blackbird, Brewer’s, 38; Red-winged, 9, 13, 38; Rusty, 16, 38; Yellow-headed, 13, 21, 38.

Blinco, Mrs. George, Article by, 8–9.

. . .

Woodpecker, Eastern Hairy, 13, 15, 16, 21, 35; Lewis’s, 35; Northern Downy, 13, 15, 16, 21, 30, 35; Red-bellied, 13, 15, 16, 21, 30, 35; Red-headed, 16, 21, 28, 35.

Wren, Bewick’s, 36, 43; Carolina, 36; House, 27, 30, 36; Prairie Marsh, 36; Western House, 9, 10, 13, …

Nebraska Bird Review (January-June 1944) 12(1), Whole Issue

Nebraska Bird Review

Contents

Distribution of Upland Game Birds in Nebraska,
By Levi L. Mohler ............................... 1

General Notes .................................. 7

Minutes of the Forty-fourth Annual Meeting ............................ 17

Report on the Forty-first Annual Field Day ................................ 21

Miscellaneous ...................................... 22

North American Prairie, J. E. Weaver

Papers of John E. Weaver (1884–1956)

From the highlands of central Mexico across the entire United States and northward into Canada extends the great mid-continental prairie. On the east it is in contact with the deciduous forest. From this central mass the prairie extends westward beyond the Rocky Mountains across Wyoming into eastern Utah, and southwestward through northern New Mexico in to northern Arizona. The Palouse Grasslands occurred in eastern Oregon and Washington, and other parts of the far Northwest. The Pacific Prairie was found in the Great Valley of California, and the-Desert Plains Grassland still occupies much of southern Arizona and New Mexico and southwestern …

Common Distributional Pattern In Geographical Ranges Of Plant Species And The Problem Of Center Of Origin, C. W. Sharsmith

Journal of the Minnesota Academy of Science

No abstract provided.

Effects Of Drought, Dust, And Intensity Of Grazing On Cover And Yield Of Short-Grass Pastures, F. W. Albertson, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

The vast range lands of western Kansas occupy approximately one half of that area. They are now recovering from the terrible destruction wrought by overgrazing, drought, and dust-burial during the past decade. Since grass is man's most powerful ally in soil and water conservation, since pastures are tremendously important as the cheapest and most satisfactory feed for cattle, and since the recovery of the western range is not only an economic problem of great importance but a phenomenon of outstanding ecological interest, the redevelopment of the plant cover warrants careful investigation.

Twenty Years Agricultural Statistics For South Dakota 1924 - 1943, C.R. Hoglund

Agricultural Experiment Station Agricultural Economics Pamphlets (1941-1991)

The purpose of this pamphlet is to bring together into a single volume, pertinent crop and livestock statistics which will be useful in determining wartime and post-war adjustments- In South Dakota agriculture. This data should be particularly useful in developing recommendations for adjustments on the county and type-of farming area levels. Information on land use; crop acres, yield and production; size of farm and livestock numbers and production are given for counties, production areas and for the state as a v/hole for the period 1924-43. Statistical data, particularly on livestock, was not complete enough prior to 1924 to allow for …

External Parasites Of Poultry And Methods For Their Control, O. S. Bare

Nebraska Agricultural Experiment Station: Historical Circulars

External parasites cause severe losses to Nebraska poultry producers each year, and in many cases may be the deciding factor between success and failure. Under present circumstances, when maximum production is essential, prompt and effective measures must be taken to hold these saboteurs in check.

Kentucky Warbler (Vol. 19, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

The Use Of Dried Whey And Blood Meal In The Raising Of Calves On Limited Amounts Of Milk, I. L. Hathaway, G. W. Trimberger, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The use of substitutes for milk in the raising of calves is always of interest to the progressive dairyman, since there are a number of circumstances in which it is advantageous to reduce the milk feeding period. Producers of market milk often desire to raise their calves on as little milk as possible in order to have more milk available for market. When the demand for milk is good, dairymen who usually market cream only may prefer to sell milk and raise their calves on starters or other milk substitutes. Dairy farmers may wish to use the skim milk generally …

A Study Of The Respiratory System Of The Sparrow (Passer Domesticus), Ben Peter Arnowitz

Bachelors’ Theses

The respiratory mechanisms of birds, unlike that of mammals, are definitely adapted to the function of flight. Because of this added adaptation, we should expect, therefore, some morphological and perhaps even embryological, physiological, and histological differences. An example of a morphological difference between birds and mammals is the intricate system of air-sacs that are present in birds. This remarkable feature is probably the reason why birds are able to fly as they do.

In this thesis the writer has used the sparrow (Passer domesticus) for the basis of his experiments. This particular bird was chosen in preference to …

Replacement Of True Prairie By Mixed Prairie In Eastern Nebraska And Kansas, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Destruction of a portion of one plant association and its replacement by another has just been completed. This has occurred not as the result of man's interference with the vegetation nor the effect of his grazing animals. It has been due to a dry climatic cycle and has been accomplished within a period of seven years. The scene of action was the broad area on the western edge of true prairie in central Kansas, eastern Nebraska, and eastern South Dakota. It is distinctly east of the mixed prairie in the central portion of these states. Although the phenomenon was general …

Bindweed Eradication In Nebraska, N. S. Hanson, F. D. Keim, D. L. Gross

Nebraska Agricultural Experiment Station: Historical Circulars

Bindweed, which is easily recognized by its creeping, entwining habit of growth, is Nebraska's most destructive weed because of its effect on crop plants. Its total annual cost to the agricultural industry of the state is several million dollars, which ultimately affects all those citizens who depend directly or indirectly upon income from agriculture.

Bulletin No. 309 - An Economic Analysis Of The Milking Enterprise On Farms In The Ogden Area, Utah, 1937-39, George T. Blanch, Dee A. Broadbent

UAES Bulletins

The area included in this study is part of the better irrigated section of Utah. Although the soils are variable, that part used for arable agriculture is generally fair to good. The poorer soils are used largely for pastures which makes necessary a forage-consuming livestock enterprise in the farm organization. Dairy cattle is the type of livestock most common. Topography, climate, irrigation water supply, transportation, and markets all permit or favor a relatively intensive and successful cash-crop and dairy type of farming. The average farm is relatively small in area of cultivated land which also makes necessary intensive usage, high …

Kentucky Warbler (Vol. 19, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Fishes Of The Middle West, Rachel L. Carson

United States Fish and Wildlife Service: Publications

The waters of the Mississippi River and the Great Lakes are a potential source of several hundred million pounds of food in the form of tasty lake and river fishes. This rich resource of the inland waters is important to a nation at war. Because of the growing meat shortage, people will eat more fish than in pre-war years. In the interior of the country, people will eat more fresh-water fish than before, because fish are good and nutritious and because, in the coming months, the shipments of rosefish, halibut, shrimp, and other seafoods that come to them from the …

Nebraska Bird Review (July-December 1943) 11(2), Whole Issue

Nebraska Bird Review

Contents

Nesting of the Red-shouldered Hawk in Sarpy County,
By Dr. Charles A. Stewart ..................................... 25

Photographing the Pileated Woodpecker in Minnesota,
By W. Leroy Wilcox ......................................................... 31

Bird Observations· from Southern Army Camps,
By Cpl. Ralph W. Velich .............................. 33

N. O. U. Cooperative Bird Migration List for Spring of 1943 .... 38

General Notes ....................................... 45

A Message From N. O. U.'s President .........................48

Membership Roll of the N. O. U. ................................................... 50

Farm Management Aspects Of Agricultural War Production In South Dakota, C.R. Hoglund

Agricultural Experiment Station Agricultural Economics Pamphlets (1941-1991)

ncreasing demands for meat, milk, fats, cereals, and oils make it essential that South Dakota farmers adjust their individual programs to achieve maximum production. This increased production may be brought about by a fuller utilization of crop land and land otherwise left idle, by shifting from low to high nutrient production crops, by adjusting livestock feeding practices for a more efficient use of feed and by the adoption of other improved farm management practices.

Bulletin No. 308 - A Farm Management Study Of Farms With Dairy Enterprises In The Ogden Area, Utah, 1937-39, George T. Blanch, Dee A. Broadbent

UAES Bulletins

Farmers in the irrigated sections of Utah are confronted by several difficult problems in the management of their farms. The farms are far distant from the consumption centers of the country which results in high freight rates and a need to produce concentrated products for market, and also in violent fluctuations in farm prices. The farms usually consist of relatively few crop acres which makes intensive usage necessary for an adequate sized business. Most farms also include a considerable acreage of land unsuited to tillage. The utilization of this land makes necessary the inclusion in the farm business of a …

Population Size And Longevity Of Males And Females In Drosophila, Kathleen M. Murphy

Bachelors’ Theses

The two ever present instincts of man are self-preservation and the propagation of the race. At the beginning of one’s life this urge to survive is wholly unconscious but later on this will to live Is supplimented within the individual as a definite conscious search for longevity. Awareness to this inherent and universal desire to live is evidenced by the sought after services of the physician or doctor; the presence of civil law with the law courts and many other protective establishments. This conscious awareness to the possibilities, no matter how slight, of extending or at least maintaining life has …

Studies Of The Excretory System Of The Passer Domesticus, James Julian Stout

Bachelors’ Theses

In past years and in recent years most animals have been made a subject of study. However, very little or no research has been made on the most common of all birds, the English Sparrow. This thesis will endeavor to take up the study of the excretory system of the Passer Domesticus. In most animals the excretory organs are the kidneys and the skin, which pass of nitrogenous and other waste matters from the body. I will take up the main organ of this system the kidney at this time, with a histological study of the ureter, and leave the …

A Study Of The Digestive System In The Sparrow (Passer Domesticus), Henry Joseph Wisniewski

Bachelors’ Theses

The digestive tube proper of the Sparrow beings with the Oesophagus. This is a soft tubular organ which serves to convey food rapidly from the pharynx to the stomach. It extends along the median ventral margin of the neck lying dorsal to or to one side of the trachea. Posteriorly, at the base of the neck and shortly in front of the sternum it broadens slightly and gives rise to a dilated region of the oesophagus, namely the Crop, "whose secretion serves to moisten the food or even to initiate digestion." In larger birds as in the pigeon, the crop …

The Urogenital System Of The Male And Female English Sparrow, Passer Domesticus, Peter Paul Wisniewski

Bachelors’ Theses

The testes is a pair of oval organs posterior to the lungs and anterior to the kidneys. Each testes is attached by a mesentery to the anterior end of the kidney. An adrenal gland is located at the anterior portion of each testes. The vasa deferentia are slender convoluted tubules. Each arises from the median edge of the testes passes cauded along the ventral surface of the kidney, paralleling the ureter and enlarging slightly at the distal end to form a small seminal vesicle, which enters the urogenital region of the cloaca by a papilla. The male urodaeum is smaller …

The Study Of The Effects Of Paradichlorbenzene On Drosophila Melanogaster, Dwain J. Paal

Bachelors’ Theses

The object of this investigation was to produce polyploid cells in the salivary glands of Drosophila melanogaster by treatment with paradichlorbenzene. Polyploidy is the condition in which the number of chromosomes in the nucleus is an exact multiple of the somatic or diploid number greater than two. This phenomena has often been referred to as produced by incomplete nuclear division.

Night Vision, Charles Sheard

Journal of the Minnesota Academy of Science

No abstract provided.

Processing Of Fats And Oils, J. Jakobsen

Journal of the Minnesota Academy of Science

No abstract provided.

Kentucky Warbler (Vol. 19, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Conception Rate In Dairy Cattle By Artificial Insemination At Various Stages Of Estrus, George W. Trimberger, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A breeding experiment with 295 dairy cows and heifers of the Jersey, Guernsey, Ayrshire, and Holstein breeds was conducted in the University of Nebraska dairy herd. The females were given artificial services at various stages of estrus to determine the effect of time of service upon conception. The results obtained indicate the potential benefits in higher percentage of conception in females bred during the middle of estrus, toward the end of estrus, and those bred in full heat and rebred in 24 hours. The latter is usually not very practical, especially in artificial breeding rings, but there are occasions when …