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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.

The Distribution And Utilization Of Agave In The American Southwest, Alvin Russell Grove

Biology ETDs

It is the purpose of this thesis to show in a comparative way the importance of Agave sp. for food, drink, fiber, etc., among various tribes comprising the American Southwest.

The problem is important from ethnological and ethnobiological standpoints. Through a study of man's attempt to utilize for food, etc., articles which grew at hand, one can better understand him. The methods of plant utilization show the effect of the environment on the man as well as his attempts to adjust himself to it or adjust the environment to himself. The problem, in addition, is an ecological one, showing the …

A Histological And Functional Study Of The Skin Of The Frog, Oscar Stern

Bachelors’ Theses

In recent years much has been written on the skin of the frog, however, it seems that little has been done to correlate the morphological and physiological aspects of the skin. The literature reveals that considerable work has been done on the common laboratory frog Rana pipiens.

A Study Of The Relation Of Temperature To Antibody Formation In Cold-Blooded Animals, Earl C. Mcdaniel

Biology ETDs

It is an established fact that when warm-blooded animals are inoculated with foreign protein, in a great many instances they become immune, due to the formation of antibodies specific for the protein injected. In warm-blooded animals the body temperature is constant. The question naturally arises as to what the situation would be with regard to antibody formation in a cold-blooded animal where body temperature is not constant; also what part, if any, the temperature of the body would have to do with the antibody formation.

In a careful review of the literature practically nothing could be found in having direct …

Studies On Vegetative And Sexual Reproduction Of The Dandelion (Taraxacum Officinale Weber), Alice Shortle

Biology ETDs

The dandelion (Taraxacum officinale Weber) is one of the most persistent weeds found in lawns in New Mexico. Much work has been carried in the United States to find an effective means of eradication or control of this pest. However, there is some weakness in every method thus far suggested.

The Gross Anatomy And Histology Of The Brain Of The Frog, George Howard Klumb

Bachelors’ Theses

The histology of the frog brain has been discussed at length in many sources, thus this work will be in the nature of a review of the previous material. However, all the work will be done on the actual sections of the frog brain, and the histological discussion will be preceded by a discussion of the gross anatomy, both internal and external; and the whole will be preceded by a short historical preface.

Salivary Gland Chromosomes Of Drosophila Melanogaster And The Bar Duplication In The Heterozygous Fly, Gertrude H. Tromp

Bachelors’ Theses

in view or the fact that salivary gland chromosomes are being so thoroughly studied at the present time, it is interesting to notice that as early as 1881 Balbiani reported the chromosomes in the Chironomus fly. He interpreted the "bands" which are of such importance to the cytologists today, as disks of chromatic material. The achromatic material he called "zwischensubstanz" or as it is now termed the matrix. Leydig (1883) also worked with the Chironomus fly. He thought that the "bands" were similar to muscle fiber striation. Carnoy (1884) believed the chromosomes were hollow cylinders and the chromatin arranged to …

The Effects Of X-Rays Upon The Roots Of Zea Mays, Bernard Louis Wolfe

Bachelors’ Theses

Since. the discovery of X-rays by Rontgen in 1895, the majority of published papers dealing with the influence of these rays on plant life have considered their general effects on physiological processes including rate of seed germination and growth, respiration, and movements. A large number of investigators have worked on the morphological and cytological aspects while comparatively few workers have been interested in the histological effects of the stimulated tissues. The purpose of this thesis is to show the histological, morphological, and cytological effects of X-rays upon the root tips or the Zea Mays as well as the effects these …

The Histology Of The Stomach Of The Frog Rana Pipiens, Eugene Anton Kampmann

Bachelors’ Theses

The common grass or leopard frog, Rana pipiens, lives in or near fresh-water lakes, ponds, and streams, and is distributed over the North American continent except on the Pacific slope. The frog has both scientific and commercial value. Frogs legs are highly prized by the epicure. In the laboratory, the frog is used in elementary courses in zoology to illustrate the characteristics of the vertebrates. Holmes very clearly states the present scientific value of the frog, "For a long time the frog has been a favorite object for the study of animal structure and function. Probably no species except …

The Skull Structure Of The Cat, Max Hoffman

Bachelors’ Theses

The subject dealt with in the following thesis is the skull structure of the cat. It is the purpose of the author to differentiate the parts of the skull and to become familiar with the many different sections as to origin, location and the functions.

The Histology Of The Alimentary Tract Of Cambarus Virilis, Arno Fred Michaelis

Bachelors’ Theses

The crayfish is a Decapod belonging to the class Crustacea of the phylum Arthropoda. The animal is used for scientific study because it possesses all of the characteristics of the phylum. It has three distinct body divisions, head, thorax, and abdomen; bilateral symetry, metamerism, jointed appendages, a chitinous exoskeleton, a dorsal heart with an incomplete circulatory system, and a nervous system of the annelid type. The crayfish is also used in the laboratory because of its abundance and the ease with which it is handled. The animal is of great economic importance due to its food value to man as …

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) …

The Types Of Sterility And Related Phenomena With Special Reference To Convallaria And Tropaeolum Majus, Mary Cecilia

Bachelors’ Theses

The development of superior plants through breeding is one of the chief contributions of America to agriculture. Out of old stock, scientists have developed a large number of new forms with better quality, more productiveness, and greater resistance to disease and adversity. However, the surface has hardly been scratched and possibilities reach in interest are pushing forward the experimentations necessary for success in the science field.

A Proximate Analysis Of Some Wisconsin Grown Varieties Of Soybeans, Herman Paas Jr.

Bachelors’ Theses

Within the last ten years there has been a constantly growing demand for soybeans. This demand is a result of the many new uses to which the by-products of the bean have been put. At present there are many varieties of soybeans on the market and each of these varieties have different compositions and hence have different qualities. Chemists are working on these different varieties and are trying to find the variety that is best suited for certain purposes. Wisconsin, which is primarily an agricultural state, will be among the leaders in raising the soybean. The purpose of this investigation …

Cross-Section Anatomy Of The Male Frog (Rana Catesbiana) : A Transverse Section Through The Region Of The Eighth Vertebra, Arthur L. Guepe

Bachelors’ Theses

At the present time there does not exist a complete cross-section anatomical study of the common bull frog, Rana catesbiana. In fact, there has been very little mention in literature of any cross-section anatomy of any particular animal. However, there has been some work of this nature done in the study of human anatomy, especially the important publication of Eycleshymer and Schoemaker (1917), and in a small measure in the anatomy of the rabbit. This lack of literature on this certain topic, however, does not mean that the author had any intentions of presenting a complete cross-section study of …

The Life History Of The Dewberry Fruit Worm Cacoecia Rosaceana (Harr.) In Utah, Merlin W. Allen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study has been to determine the identity and the life history of certain larvae attacking dewberry fruits and foliage in a few sections of Utah. The dewberry fruit worm as it was called until it was definitely identified the oblique-banded leaf-roller, was first observed by farmers at Granite and Butlerville in 1932. Since 1934 it has been found affecting dewberries in other parts of northern Utah.

This investigation was begun in the spring of 1935 and continued until the fall of 1936, being made possible through the Utah Agricultural Experiment Station, Department of Entomology, and with …

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.

Water Relations To Germination Of Zea Mays, Mary Hood

Masters Theses & Specialist Projects

Four experiments regarding water relations to germination of zea mays.

1. Per cent of water absorbed by seeds of zea mays with supply of water controlled and filter paper used as water absorbent.
2. Per cent of water absorbed by seeds of zea mays with supply of water controlled and filter paper used as water absorbent.
3. Per cent of water absorbed by seeds of zea mays with supply of water controlled and cotton used as water absorbent.
4. Per cent of water absorbed by seeds of zea mays with supply of water controlled and cotton used as water absorbent.

An Interpretive Study Of Some Kentucky Biologists, Rachel Winstead

Masters Theses & Specialist Projects

This study was undertaken with the idea of bringing together information concerning some of the most important Kentuckians who have made contributions to the biological sciences. In order that we may better understand and appreciate the work done by these men, it was thought best to give a brief discussion of the major periods in the history of biological development. An attempt will be made to interpret the contributions of the men discussed, according to the period in which they lived. Only a sufficient number of men are discussed in each epoch to give a correct picture of the trends …

The Effects Of Vitamins "A" & "D" Deficient Diets On Crayfish, Joseph Hale

Masters Theses & Specialist Projects

The literature on vitamins shows that the greater number of the studies made of vitamin "A" and "D" deficient diets have been confined to their efforts on the vertebrates. Only a few controlled experiments have been conducted to determine the effects of vitamin "A" and "D" deficient diets on the invertebrates.

The purpose of this investigation was to determine the effects of vitamin "A" and "D" deficient diets on crayfish.

Seasonal Variation Of The Pigment Content Of Acer Saccharum & Tilia Americana, James Major

Masters Theses & Specialist Projects

Leaves of the sugar maple and the American linden were selected. Since it was impossible to control environmental factors in any way, trees growing in close proximity were used. A sugar maple and an American linden growing near the entrance to the circular drive between Ogden Hall and Snell Hall on the campus of Western Kentucky State Teachers College, Bowling Green, Kentucky, fulfilled the above conditions.

The Reptiles Of Cherokee County, Kansas, Myron Alec Hurd

Electronic Theses & Dissertations

Cherokee County has an area of 585 square miles. The greater part is covered with hydrophytes and mesophytes, but there are some Xerophytic areas. A large part of its area is covered with typical prairie grassland. Thickets of plum, sumac, persimmon, hawthorne, blackberry, and buck brush occur in pastures and wastelands. Along the streams may be found the elm-ask-oak assocations and other plants. Along the embankments may be found blackberry, sumac, and wild rose. Surrounding the ponds and marsh areas are rushes, reeds, button willows, and willows.

The mean annual temperature is 56 degrees fahrenheit. The three summer months average …

Pigment Migration In The Eye Of Forbesichthys Papilliferus, Harld Welborn

Masters Theses & Specialist Projects

Previous studies conducted in these laboratories showed the pigment in the eye of Forbesichthys papilliferus, when exposed to light, migrated from the stratum pigmenti into the layer of rods and cones. It was thought advisable to investigate this matter further. The following lines of investigation were conducted, viz:

1. to determine the rate at which the pigment migrates from the stratum pimenti into the layer of rods and cones when exposed to sunlight;
2. to determine the rate at which the pigment migrates from the stratum pigmenti into the layer of rods and cones when exposed to artificial light; and
3. to determine …

A Study Of The Stem Anatomy Of Aristolochia Sipho A., Rudolph F. Dobry

Bachelors’ Theses

Plant anatomy has been studied for over 265 years. The discovery of the plant cells by Robert Hooke in 1665m stimulated studies in regard to these structures.

Nervous System Of Felis Domestica, Rachel Creighton Mcavoy

Biology Honors Papers

This 34 page thesis examines the embryology, anatomy and histology of the nervous system of Felis domestica.

The Flora Of The Tasco Lake Region, Sheridan County, Kansas, Raymond W. Darland

Master's Theses or Doctor of Nursing Practice

It has been customary in writing theses dealing with taxonomic problems to collect data from an entire county. Having had occasion to collect botanical specimens from the Tasco Lake for work in biology at the Sheridan High School, the wealth of plant life to be found here became apparent. The area ranges from xerophytic forms on the uplands to the hydrophytic forms in the lake and marshes. Many of the latter have never been reported from Western Kansas. Collections in preserving fluid were made of the water forms found and specimens of the landforms were mounted on regulation-sized sheets properly …

A Study Of Some Phases Of The Gametophyte Of Preissia Commutata Nees, Marion Steuber

Bachelors’ Theses

The beginnings of the exact knowledge of the Hepaticae dates from the work of Hofmeister, who in 1350 to 1362 published important investigations on them. He discovered the egg cell in the archegonium, traced the sperm to the surface of the egg and showed that it was fertilized by the sperm.

Spermatogenesis Of The Albino Rat (Nus Norvegicus Albus), Norman A. Frankenstein

Bachelors’ Theses

This thesis deals with the inquiry opened by the fundamental discovery that the gamete nuclei, and hence, the two parents from which they are respectively derived, con­ tribute each a haploid or single group of chromosomes to the fertilized egg. Each act of fertilization doubles the gametic number of chromosomes; yet the number of characteristic of the species remains constant from generation to generation. Somewhere in the life cycle, accordingly, the diploid or somatic number must be reduced by one-half to the haploid or gametic number. The first explanation was that reduction took place by some process of degeneration or …

Types Of Vascular Arrangement In Some Homosporous Leptosporangiate Ferns, Grace Ann Kreuz

Bachelors’ Theses

The vascular structure of Leptosporangiate and Eusporangiate ferns has been studied by a number of Botanists.

Histological Study Of The Structure Of The Testis Of Rana Pipiens, John L. Friedl

Bachelors’ Theses

All the living organisms, be they plant or animal, act as a unit which implies that the various anatomical and physiological systems are coordinated either for the benefit of the Individual itself or for the maintenance of the spe­cies. For convenience sake, the individual is divided into a digestive,. respiratory, circulatory, nervous, muscular, and skeletal systems; but there is one system which although of some value to the individual is primarily adapted for the production of other individuals, and this is the reproductive system.