Other Life Sciences Commons^™

An Investigation Concerning The Incidence And Pathogenicity Of Pentatrichomonas Gallinarum And Its Relationship To Histomonas Meleagridis In Turkeys In Utah, Ross S. Hadfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Turkey raising has become big business. During the period 1942 to 1946, the average annual return in Utah amounted to about nine and one-half million dollars (4). This amount would have been increased considerably if the death loss among poults had been lower. As an example, using the percentage of mortality given by Miner (9, p. 5), it is estimated that the death-loss of turkeys in 1944 resulted in a loss of gross income by the farmers of Utah of more than four million dollars provided that the price the farmer received had remained the same.

Among the prevalent causes …

Harvest Of Wild And Stocked Fish From The Logan River Drainage, Louis S. Pechacek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Logan River, one of Utah's better trout streams, has carried more than its share of the increased fishing pressure of the past few years. Careful management of the drainage by the U.S. Forest Service has kept the Logan River free of serious water fluctuations and relatively unpolluted by silt and wastes. The only noticeable fluctuations in the stream is the annual runoff cycle which usually reaches its peak in May. This alone has contributed greatly to the ability of the river to withstand the increased fishing pressure which it has done quite well. The increase in fishing pressure can …

Life History Of The Cutthroat Trout Salmo Clarkii Richardson In The Logan River, Utah, George Gordon Fleener

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study of the cutthroat trout in the Logan River drainage was initiated in cooperation with the Utah Cooperative Wildlife Research Unit and the Utah Fish and Game Department during May of 1948. The first field work began that month. The taking of fish was terminated in November, 1949, although several trips were made into the study area as late as January, 1950.

Consumptive Use Of Water Studies In The Colorado River Area Of Utah, J. Y. Christiansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

At the request of the State Engineer of Utah, a cooperative study beginning January 1, 1948, was initiated by the Utah Agricultural Experiment Station and the Division of Irrigation, U. S. Soil Conservation Service. These research agencies are being assisted financially, and by consultation, by the State Engineer who has also made arrangements for certain observations to be made and furnished by the U. S. Geological Survey, U. S. Weather Bureau, and the U. S. Bureau of Reclamation. The objective of this study is to obtain basic information regarding the consumptive use of water by agricultural crops, native vegetation, and …

Emergence And Survival Of Four Introduced Wheatgrasses As Influenced By Rate And Season Of Planting On Abandoned Farm Lands Of Utah, Donald N. Hyder

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A great deal has been accomplished in developing methods of restoring abused lands through seeding, yet there is much to be desired in refinement of techniques and in substantiation of previous experimental results. Controversial opinions as to the best season of planting indicate that additional trials are needed. New species need to be introduced, developed, and proved. Methods are needed which lead to more efficient utilization of those factors limiting the degree of success in establishment. Since moisture is the most predominant limiting factor throughout the arid and semi-arid range land, special attention is given to more efficient utilization of …

An Evaluation Of Trout Stocking In The Logan River Drainage, Nels Andrew Thoreson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

One of the more important forms of recreation in Utah is fishing. Each year since the end of World War II more than 100,000 resident and 4,000 non-resident fishermen have taken to the streams and lakes of this state. They spend approximately $2,200,000 each year in the quest of fish, mostly trout. In 1916, 25,473 licenses were sold, in 1937 the number of licenses had risen to 41,200, in 1945 the sales amounted to 104,000 and in 1947 had increased to nearly 131,000. Because of the increased number of fishermen each year, the desirability of greater numbers of legal-sized fish …

Utilization Of Forage Plants And Diet Of Sheep On Utah Winter Range, Lisle R. Green

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although there is an abundance of material available concerning forage consumption by livestock on pasture land and in the feed lot, there is relatively little known about the grazing habits and forage preferences of livestock under range conditions. There has been still less scientific effort expended toward solving the riddle of the grazing animal's diet under winter range conditions. Investigators have suggested means to determine the quantity of forage available on range areas, the carrying capacities of range lands, and methods of determining the degree to which forage has been utilized. The diet of the foraging animal is affected by …

Factors Influencing The Validity Of Pheasant Census Methods, Sevier County, Utah, Eldon H. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The measurement of animal populations is a most important phase of wildlife management. The initiation of systematic management of any unit of specific game habitat usually involves the measurement of the stock on hand as a primary step. In practice game inventory performs a twofold function; namely, as a medium determining the efficacy of past management practices as a basis for future manipulations and as an aid in the establishment of game protective or removal policies.

A census, in the sense applied in this study, is best defined as the enumeration of a population on a given area at a …

Commencement Sermon 1947, College Of Medical Evangelists

Commencement Programs

Contents

2 | Lead On, O King Eternal - Ernest W. Shurtleff

3 | Program

4 | Class Roll

Investigations Of The Fishery Of Fish Lake, Utah, Vaughn D. Madsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fish Lake, which is located in Sevier County, Utah, is considered to be one of the most productive lakes in the intermountain regions. It is visited annually by thousands of fishermen from Utah and surrounding states. In 1934, a thirteen day check made by the Utah Fish and Game Department showed that anglers caught 17,521 fish with a total weight of 13,844 pounds, and spent a sum of $27,246.21 on expenses.

Because of the great recreational value of Fish Lake, chiefly as a fishing resort, it is desirable to find out whether or not any great change has taken place …

Analysis Of Rocky Mountain Mule Deer Kill Records Of Five-Year Deer Removal From The Logan River Drainage Of Northern Utah, Wilmur Bartels

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Checking stations operated during the deer hunting season serve a two-fold purpose. It has long been recognized that such inspection stations aid greatly in the enforcement of hunting laws through the detection of illegal practices, and in many cases have been set up with this as a primary purpose. A more far reaching objective, however, is the collection of information to aid in the solution of the problems of maintenance of the range and the deer herd, and determination of the quality and quantity of the deer removal.

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 …

A Taxonomic And Ecological Study Of Acridinae Of Utah (Orthoptera-Locustidae), Herald C. Bennion

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Orthoptera, especially the family Locustidae, is one of the most important and most interesting orders of insects in the state of Utah. It includes a polyphagus group of great economic importance in the state. The topography and climate of Utah varies from forested alpine slopes to hot arid desert wastes, several life zones being represented. This great variation from desert to alpine in Utah presents a rather unique region for taxonomic and ecological studies of the Orthoptera.

The most familiar representatives of the insect order Orthoptera are the long-horned grasshoppers, locusts, crickets, katydids, and cockroaches. Orthoptera are characterized by Comstock …

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 Compatibility Of Church And Science, John H. Casey

Bachelors’ Theses

The intellectual fashion, if such there be, obtained quite a few years ago to maintain that there was no such a thing as compatibility between religion and science. Like all fashions, it has passed out of vogue and the inherent and foolish fallacy behind it has been repeatedly an effectively exposed. However, it has exhibited another characteristic of all fashions by returning and finding favor in some quarters. Fortunately, its second inaugural is not so auspicious or general since the original style, while it caught the popular fancy, was too unmercifully denounced and derided to allow for a second successful …

The Physiology Of The Respiration Of Fishes In Relation To The Hydrogen Ion Concentration Of The Medium, Edwin B. Powers

Papers in Systematics and Biological Diversity

Within recent years much has been added to the knowledge concerning the mechanism of the respiratory function of the blood. Haldane and Priestley (1905) have shown that, at least in the higher animals, the respiratory movements are affected by the carbon dioxide tension of the arterial blood. It has been shown definitely (Hasselbalch, 1912 and citations) that the exciting agent is the hydrogen ion concentration of the blood bathing the respiratory center.

Krogh and Leitch (1919) undertook to study the respiratory function of the blood of fishes in view of the knowledge of the influence of temperature upon the dissociation …

Reviews Of Current Botanical Literature, Charles E. Bessey

Papers in Systematics and Biological Diversity

A little more than a year ago at the annual meeting of the Society for Plant Morphology and Physiology, held in New Haven, a committee, consisting of Dr. Farlow of Harvard University, Dr. MacDougal of the New York Botanical Garden and Dr. von Schrenk of the Missouri Botanical Garden, was appointed to consider the question of securing better reviews of current botanical literature. A preliminary report was made by this Committee last June, a t a special meeting of the Society held in New York a t the time of the meeting of the American Association for the Advancement of …

Science And Culture, Charles E. Bessey

Papers in Systematics and Biological Diversity

It is with peculiar pleasure that I stand before this new department of Natural Science Instruction, and I deem it a great honor that you have asked me to preside over its deliberations. It is an important sign of the times that such a department as this should have been organized by the scientific men of the country. It is significant of a broader view of the work of scientific men that we find so many here to-day to take part in the first meeting of a department which has for its object the discussion of questions pertaining to the …

Sixth Annual Report Of The Botanist, Charles E. Bessey

Papers in Systematics and Biological Diversity

Content:

Grasses at the State Fair

The Weeds of Nebraska

A Preliminary List of the Grasses of Nebraska

The Grasses of Northwestern Nebraska

Some Grasses of Box Butte and Scott’s Bluff Counties

Some Grasses of Southwestern Nebraska

A Sketch Of The Progress Of Botany In The United States In The Year 1879, Charles E. Bessey

Papers in Systematics and Biological Diversity

In this department the observations of the botanists of this country, as shown by their published papers, were directed mainly to the reproductive organs and their functions ; and with one or two exceptions the papers were short, involving but a few quickly-made observations. Little or no world was done in micro-anatomy (histology) and proper physiology.

While we may regret that so much of the field has been so sadly neglected in our country, we should remember, that as a rule our botanists are overloaded with other duties which render it often impossible for them to command the time for …

A Sketch Of The Progress Of Botany In The United States In 1880, Charles E. Bessey

Papers in Systematics and Biological Diversity

A valuable paper appeared in the Botanical Gazette for November, on "The Stem of the Pumpkin for illustrating Plant Histology," by J. C. Arthur. The disposition of the various tissues, with notes upon some of their peculiarities, and suggestions as to the best methods of preparing them for observation, make up the bulk of the paper.. Finally a classified list of the tissues is given.