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What Science Contributes To Agriculture, W. G. Wiegand

Journal of the Minnesota Academy of Science

No abstract provided.

Evidences Of Sterility In The Hyacinthus Orientalis L., Mary Adelbert

Bachelors’ Theses

In this paper, it will be the purpose of the writer to discuss the types of sterility found in the Hyacinthus orien­talis and to locate the causes of this condition in the flower, with a view to possible improvement of the plant for purposes of cultivation. In speaking of a type of sterility, reference is made to some well-defined and frequently recurring condition which breaks that chain of processes that leads normally to fruit and seed production.

The Influence Of Soil Profile Horizons On Root Distribution Of White Pine (Pinus Strobus), Harold J. Lutz, Joseph B. Ely Jr., Silas Little Jr.

Yale School of the Environment Bulletin Series

No abstract provided.

The Skeletal, Muscular, Vascular, And The Digestive Systems Of The Ferret (Mustela Putorius) And A Comparison Of These Systems With Those Of The Domestic Cat (Felis Domesticus)., Arthur Pincus Skwerer

Electronic Theses and Dissertations

No abstract provided.

A Study Of Mahogany., Roy A. Lawrence

Electronic Theses and Dissertations

No abstract provided.

The Effect Of Drugs On Experimental Renal Hypertension In The Dog., J. J. Prusmack

Electronic Theses and Dissertations

No abstract provided.

The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson

Electronic Theses and Dissertations

Soil Nutrient losses have followed closely in the paths of advancing frontiers in agriculture. Remedies for depletion as the result of overcropping were sought by George Washington, whose interest and investigation of soil nutrient losses probably represent the earliest attention given to land exploitation in the United States, which at the present time has become a problem of national concern. Soil losses have been attributed to a number of causes , among which are cropping, erosion, leaching, burning, and rapid oxidation of organic matter in the soil. Associated with soil nutrient losses, certain significant physical and chemical changes may occur …

Crow-Waterfowl Relationships Based On Preliminary Studies On Canadian Breeding Grounds, E. R. Kalmbach

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

With the object of obtaining a current insight into the relationship of crows to waterfowl on their breeding grounds, a study was inaugurated in the spring of 1934 and continued through the nesting season of that and the following year. As originally planned, it called for field studies both in Canada and in the northern United States, but drought conditions had so drastically reduced the breeding population of ducks within our borders by the spring of 1934 that, after a futile effort to locate suitable areas in this country, plans were changed and the studies were restricted to Canadian areas …

Diseases Of Upland Game Birds, J. E. Shillinger, L. C. Morley

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Until recently the diseases of upland game birds received comparatively little specific study, except in a few outbreaks in which serious losses were observed. Though highly destructive, many of these outbreaks were of such short duration that the investigations undertaken were chiefly to learn the cause of death and usually were discontinued when losses were no longer noticeable. It has become increasingly evident, however, that every year great numbers of game birds die of disease, the decreases in their numbers frequently occurring in sections closed to hunting, even though food, cover, and other environmental conditions appear ideal. The disease problems …

The Gizzard Worm And Its Transmission To Chickens In Hawaii, Joseph E. Alicata

Harold W. Manter Laboratory of Parasitology: Library Materials

Gizzard-worms of poultry, Cheiloapirura hamulosa, are nematodes occurring in the gizzards of chickens and turkeys.

Summary and Conclusions

Previous to this report the carriers for the gizzard-worm in Hawaii were unknown. Recent investigations by the writer have shown that the flour beetle, Tenebroides nana, and the sand hopper, Orchestia platensis, collected from poultry farms in the Territory of Hawaii have been found naturally infested with the infective larvae of the poultry gizzard-worm, Cheilospirura hamulosa. Out of 8 laboratory-raised chickens to which there were fed about 2,300 grasshoppers that had been collected in an endemic gizzard-worm area, …

Translation Of Nakamura, Yoshitaka. 1937. Development Of Trichostrongylus Instabilis, Section Ii: The Larva. Keio Igaku, Tokyo 17(4): 797-814, Yoshitaka Nakamura, Guang-Tsan Wang

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 11, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States, March 23, 1964 (21 pages)

Translation of Nakamura, Yoshitaka. 1937. Development of Trichostrongylus instabilis, section II: The larva. Keio Igaku, Tokyo 17(4): 797-814

Translation from Japanese to English by Guang-Tsan Wang, University of Illinois, Urbana, Illinois, United States (notated sj)

The presently accepted name for this species is Trichostrongylus colubriformis. Translator.

A New Genus Of Distomes (Trematoda) With Lymphatic Vessels, H. W. Manter

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The trematodes described in this paper are but two of over 100 species collected from marine fishes in 1934, during the third G. Allan Hancock Expedition to the Galapagos Islands. The author's presence on this expedition was sponsored in part by the Carnegie Institution of Washington. A brief preliminary report on the trematodes collected has been made (Manter, 1934) and a more complete report on the digenetic forms is in preparation. An early description of these two forms is felt justified in view of their significance in connection with the phylogeny of the Distomata. The author has already indicated (Manter, …

Local Bird Refuges, W. L. Mcatee

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Birds appeal strongly to the interests and affections of mankind. Not only do they charm by their graceful forms, harmonious colors, sprightly actions, and usually pleasing notes, but they have an even more important claim upon our esteem because of their great economic value.

Birds feed upon practically all insect pests. They are voracious, are able .to move freely from place to place, and exert a steady influence in keeping down the swelling tide of insect life.

For economic as well as for esthetic reasons, therefore, an effort should be made to attract and protect birds and to increase their …

A Study Of The Native Trees Of Amador County, Guy V. Towsley

University of the Pacific Theses and Dissertations

The region covered by this study reaches from the valley floor of the San Joaquin-Sacramento Valley, with an altitude of about 150 feet, to the top of the Sierra Nevada Mountains, whose peaks, in Amador County, reach to more than 9000 feet. Mokelumne Peak has an altitude of 9371 feet. The north and south distance, across the county at Ione, is 22 miles, while at Cook's Station, it is barely 5 miles. Amador County has an area of about 600 square miles.

Thus, a study of trees in this county, gives a fairly representative cross-section picture of the Sierras at …

Weeds In Sacramento County Of California, Ross Clover

University of the Pacific Theses and Dissertations

Sacramento County has many types of Agriculture and many weed pests which compete with the crops. Stock may be poisoned by certain weeds and weeds may also act as hosts for fungus diseases, virus diseases and insect pests of cultivated crops. Many plants may be weeds in one locality and harmless or beneficial in other parts. The author has made a thorough study of the country's agriculture and its weeds. Latest control practices were also studied.

Reflex Respiratory Effects From Intermittent Stimulation Of Vagus And Superior Laryngeal Nerves, Charles Hillenbrand

Master's Theses

No abstract provided.

Some Actions Of Sodium Salicylate On Scorbutic Guinea Pigs, Jacob John Giardina

Master's Theses

No abstract provided.

Conjugation Of Various Amino Acids With Insulin In Liquid Ammonia, Charles Jon Caul

Master's Theses

No abstract provided.

Reduction Products Of D-Glucoheptulose, Stanley John Kuman

Master's Theses

No abstract provided.

The Influence Of Overgrazing On The Density And Number Of Palatable And Unpalatable Desert Forage Plants, John H. Mcguire

Theses and Dissertations

The data for this problem were collected at the Desert Range Experiment Station and on adjoining public domain lands during the summer of 1934, for the purpose of studying the influence of overgrazing on the increase of palatable and unpalatable desert forage plants. A vegetative description of the two areas studied has been prepared and presented.

The Protective Action Of Picrotoxin In Prolonged Surgical Anesthesia With Evipal, Arnold H. Maloney

College of Medicine Faculty Publications

No abstract provided.

Cellar And Cold Storage Of Sound And Mechanically Damaged Triumph Seed Potatoes, H. O. Werner

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The object of these experiments was to determine with practically sound, whole potatoes the effect of cold storage during various portions of the storage period and continual cellar storage upon: (a) the weight losses during numerous intervals of storage period; (b) the condition of the potatoes at the end of the storage period in June; and (c) the relative seed value of the various lots of potatoes as determined by field experiments.

The Protective Action Of Picrotoxin In Prolonged Surgical Anesthesia With Evipal, Arnold H. Maloney

Faculty Reprints

No abstract provided.

The Frank Carney Collection Of Maps, Edwin J. Foscue

Field and Laboratory

The Department of Geology and Geography of Southern Methodist University has been fortunate in securing the entire collection of wall maps from the private library of the late Doctor Frank Carney, sometime Professor of Geology and Geography at Baylor University, Waco, Texas, and formerly of Denison University, Granville, Ohio.

Bulletin No. 275 - Types Of Farming In Utah, Marion Clawson, Walter U. Fuhriman, George T. Blanch, W. Preston Thomas

UAES Bulletins

A large portion of the agriculture of Utah, outside of the desert range areas, is characteristically heterogeneous rather than homogeneous in character. Marked differences in size of farm, in crops grown, in livestock kept, in yields, and in farm organization occur within short distances. This diversity is due in large measure to differences in soil, elevation, topography, and other physical features and to climatic characteristics such as amount, kind, and distribution of precipitation and length of growing season. The physical and climatic features are the chief determinants of the amount of water potentially available for the irrigation of the crop …

Bulletin No. 276 - How Science Aids Utah Agriculture

UAES Bulletins

Biennial Report of the Director, 1934-35 and 1935-36 Agricultural Experiment Station Utah State Agricultural College, Logan, Utah

Practical Methods In Phase Rule Study: Transition Temperatures From Electromotive Force Measurements, V. Metler

Field and Laboratory

The methods available for the determination of transition temperatures have been classed by Findlay under seven heads: (1) dilatometric methods, (2) vapor pressure methods, (3) solubility measurement methods, (4) latent heat measurement methods, (5) optical methods, (6) viscosimetric methods, and (7) electrical methods.

Chemistry At The Texas Centennial Exposition, E. O. Heuse

Field and Laboratory

Although the Texas Centennial Exposition does not have an entire building devoted exclusively to science, there are many scientific exhibits and several of special importance to any one interested in chemistry. Such exhibits may be found in the Transportation Building, the Varied Industries Building and the Ford Building.

Meteorite Craters And Their Possible Relationship To "Cryptovolcanic Structures", John D. Boon, Claude C. Albritton Jr.

Field and Laboratory

The increasing number of recognized meteorite craters indicates that these features are not so rare as formerly believed. It is probable, moreover, that meteorite craters of the geologic past were larger and more abundant than the relatively recent examples. Evidence for the fall of ancient meteorites must be sought, however, in geologic structures produced by impacts.

Shell Repair In Polygyra Texasiana, Elmer P. Cheatum

Field and Laboratory

It has long been known, on the basis of field observations and laboratory experiments, that snails and clams are able to repair breaks in their shells. However, with the exception of Andrews' ('34, '35) excellent work on shell-repair of West Indian gastropoda, and Daniel's ('12) studies, practically all observations have been made upon European mollusks.