Life Sciences Commons^™

The Anatomical Differences Of The Tubers Of The Genus Dicentra, June E. March

Bachelors’ Theses

Gray (1878) described a number of the subterranean modifications of the stems. These can be distinguished from the roots since they produce regular buds and scale leaves.

A Survey Study Of The Intestinal Worms And Ciliates Of The Hog (Suis Domesticas), John F. Crowley

Bachelors’ Theses

The purpose of this £survey study was to ascertain the variety and extent of intestional worm and ciliate parasites of hogs slaughtered in packing houses of the Milwaukee area.

The Effects Of Various Concentrations Of Vitamin B1 On The Growth Of Amoeba Proteus, Walter J. Bo

Bachelors’ Theses

Thiamin or vitamin B₁ was first isolated in crystalline form from rice bran by Jansen and Donath in 1926 . Windous, Tschesche, Buhkopf, Laquer and Schultz in 1931 isolated the pure vitamin B₁ from yeast and established the emperical formula - C₁₂H₁₇ON₄Scl.Hcl .

A Study Of The Renal Vascular Supply In The Domestic Cat, Elizabeth Rosen

Bachelors’ Theses

Studies on the normal and abnormal vascularization of the renal vessels in the domestic cat (felis domestica) indicate the frequency of anomalies that occur, but in most of the studies it is the inferior vena cava that is most often recorded. Among the occasional references to several renal veins or arteries we have Huntington and McClure, Elmer Butler, Gaylord Bates, William Darrach, and C.H. Fortune. Yet no study seems to have been made of individuals of any particular class. A superficial observation seems to indicate a large number of cats used in the laboratory had multiple renal veins. Hence a …

Thrips Species Infesting Tomatoes And Other Host Plants Of These Insects In Northern Utah, Darrell R. Maddock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study has been to determine which species of thrips infest tomato plants and fruits in northern Utah, and to find out which other plants occurring in this area also serve as hosts for tomato-infesting thrips.

Because of the importance of tomato-infesting thrips to the canning industry, it was decided that more complete knowledge of the species of thrips which are found on tomatoes should be obtained. Because most thrips generally have been difficult to control, it was believed that a general knowledge of the plants on which these thrips occur would enable tomato growers to eliminate …

Municipal Water Softening In Kansas, Roy Rankin

Fort Hays Studies Series

This study was made for the benefit of the more than one-half million residents of Kansas who live in cities and towns of the state and do not enjoy the advantage of soft water.

A Comparative Study Of Directed Laboratory And Lecture Demonstration As Methods Of Instruction In Teaching Botany To High School Students, M. Lucida Vorndran

Master's Theses or Doctor of Nursing Practice

A controlled investigation of green plants as the most important food factories of the world has been made in order to contribute more information upon the issue. Stated more specifically, the problems of this experimental study were the following: 1. To determine which of the two methods, if either, is superior as a procedure for learning. 2. To determine whether laboratory experiments are more effective than lecture-demonstration in training students to think clearly, to correlate and retain facts; and finally, to draw logical conclusions. 3. To determine, if possible, which method stimulated the greater amount of pupil interest.

Bio-Ecology On A Mixed Prairie Near Hays, Kansas, H. Leo Brown

Master's Theses or Doctor of Nursing Practice

A survey of the activity of wild animals in connection with range conditions and range management is greatly needed in western Kansas. To have a well-managed range one should have an understanding of the ecological factors which benefit or deplete the native vegetation that is essential for production of livestock. The impact of grazing, and the effect of changes in edaphic and atmospheric environment on the prairie have further emphasized the importance of a cover of grass in preventing erosion.

An Anatomical Study Of Cicer Arietinum, Mary Elizabeth Johns

Biology ETDs

This investigation was made for the purpose of studying the developmental anatomy of the primary axis of Cicer arietinum. Ontogenetic studies of the primary and secondary tissues of the root and stem, and the leaf primordia are included

The Stomatal Behvior Of Begonias And Its Relationship To Infection By Xanthomonas Begoniae, Eugene David Kitzke

Bachelors’ Theses

A leaf spot disease of begonias caused by a bacterium has been under observation and study at Marquette University for nearly a year. It brings up many interesting questions which need to be an­swered before the investigators can fully evaluate and determine correctly the relationships of this organism to the Begoniaceae. One of the questions, which has come up, was the problem of the mode of entrance. It is the purpose of this paper to deter­ mine the relation of the stomata to infection.

Histological Study Of The Small Intestine Of The Common Green Snake, Thamnophis Sirtalis, Robert George Stineman

Bachelors’ Theses

Although much work has been done histologically with the vertebrates, very little seems to have been done on the intestinal tract of the reptile. This is especially true of the snakes, despite the abundant sources of material. Reptiles are one of the first classes of vertebrates in which there is a distinction made between small and large intestine. Histology textbooks devote only a few lines to the histology of the reptilian small intestine. For this reason it seems that it would be worthwhile to make a detailed study of that portion of the intestinal tract immediately distal to the duodenum …

The Histology Of The Digestive Tract Of The Common Green Snake, Thamnophis Sirtalis 3. Esophagus, Janice Jean Mcfarlane

Bachelors’ Theses

This is the third in a series of investigations of the comparative histology of the digestive tract of Thamnophis sirtalis, the common green snake. Comparatively little recent work of this nature upon any of the class Reptilia, and especially upon the order Ophidia, seems to have been undertaken. Kendall(1940) makes no mention of Ophidia, but discusses briefly the digestive system of the lizard, limiting his treatment of the esophagus to a few lines. Cole (1941) has an equally short and general discussion of the digestive system of Thamnophis sirtalis, again devoting but a brief space to his discussion of the …

Atypical Conditions Of The Inferior Vena Cava, Mary F. Reagan

Bachelors’ Theses

Extensive dissection of various mammalian forms, expecially of man, the rabbit, and the cat has led to a recognition of a certain vascular pattern of the inferior vena cava which is typical for the group, It occurs so consistently that the occasional specimens which differ from it are of interest because of both their ontogenetic and phylogenetic significance.

The Feulgen Reaction Applied To Various Platyhelminthes And Small Ascarid Worms Mounted In Toto In Balsam Oil, Louise R. Russort

Bachelors’ Theses

The problem involved in this experiment was the application of the Feulgen Reaction to a number of flatworms and small ascarid worms, in an attempt to ascertain whether or not a practical staining technique, (showing clear differentiation of nuclear material, etc., from the surrounding cuticle and cytoplasm) -- may be developed, by staining and mounting them in toto. The Feulgen Reaction was used in this experiment, not as a specific indicator for thymonucleic acid, but rather as a cytological stain. Some attention will be focused upon the reaction's specificity, however, in the following discussion of the development of the reaction …

Some Technique Methods For Preparing Slides Of The Paramecium, Irene Padley

Bachelors’ Theses

Du Jardin (1835) was probably the first to recognize in protozoa, living substance. To this substance, he applied the word sarcode. In 1861, Max Schultze expressed the idea that sarcode and protoplasm are the same thing.

Making Permanent Mounts Of Fern Gametophytes, Gail Seeraphine Barczak

Bachelors’ Theses

One of the botanists first to grow fern gametophytes from spores whicch were sown on moist clay was Farlow (1874), a student of the famous botanist, DeBary, professor of Botany at the University of Strassburg in Germany. Farlow sowed the spores of Ptteris cretica var. albo-lineata on moist clay placed into small flower pots. Watering was accomplished from the top. There was no sterilization of the culture medium. The gametophytes of this fern were also grown under the same conditions by DeBary (1878). Steil (1919a) grew the prothalli of Ptteris sulcata and Ptteris cretica var. albo-lineata in the same manner …

A Cyto-Genetical Study Of Habronbracon Juglandis, Joan Meyer

Bachelors’ Theses

A cyto-gentical study was attempted of the males of the Ichneumonoid wasp Habrobracon juglandis (ashm.) The larval of this wasp are parasitic on the larval of a flour moth Ephestid kuekniella (zeller). The males of this wasp were disected and slides were made of the testes. Different staining techniques were used in order to determine which ones would give the best results.

The Development Of Bone In The Chick Embryo, Helen M. Koelsch

Bachelors’ Theses

The day by day development of the bone in the chicken embryo as determined by the fixing and staining of embryos for each twenty-four hour growth period during the time of greatest skeletal development, is the subject of this paper. The stage in the embryological history of the chick during which the most important phases of bone development occur was determined to be the period between the seventh and the sixteenth days of incubation. It is therefore the purpose of this investigation to give an account of the growth and development of the bones of the ordinary domestic fowl as …

Histology Of The Stomach Of The Common Green Snake, Thamnophis Sirtalis, Lois Doerfler

Bachelors’ Theses

This is another in the series treating the histology of the digestive tract of the reptile. Very little comparative work has been done on the digestive system as a whole and less attention has been paid to the stomach. Kendall (1940) and Cole (1941) devote a slight discussion to a general description of the reptilian stomach. The following report is a more detailed microscopic investigation of the anatomy of the stomach of one of the common species of snakes...

The Utilization Of Grasses And Forbs In Relation To The Intensity Of Grazing In The Mixed Prairie Near Hays, Kansas, Noel Runyon

Master's Theses or Doctor of Nursing Practice

The principal occupation of the inhabitants in the Great Plains Region is livestock farming. The problems confronting the farmers and ranchers of this large area are many and varied. Not the least of these problems is the one of a proper stocking rate for the various types of ranges in order to secure a maximum production with the least in capital outlay and range deterioration. Another problem that has presented itself in recent years is the one of revegetating thousands of acres of marginal and semi-marginal land so that mother nature may again heal the marks of erosion and bring …

A Discussion Of Histological Technique With Special Reference To Double And Triple Staining, Margaret J. Mckinney

Biology Honors Papers

This 18 page thesis discusses the process of fixing, dehydrating and clearing tissues, as well as the effects of various types of dyes and staining methods.

The Effect Of Salt Water On The Pituitary Gland And The Reproductive Glands Of The Male Rat, Matthew J. Kennedy

Bachelors’ Theses

In this thesis a study was made of the histology of the reproductive system of a male, buff rat.

A Comparative Study Of Dehydration And Infiltration, Jane C. Mahar

Bachelors’ Theses

Dehydration is the process of removing water from tissue which has been fixed and hardened. It is a necessary step for the Infiltration of paraffin. If the dehydrating agent is not a solvent of the paraffin, it is necessary to use a solvent first and then infiltrate with paraffin. Dehydration, according to Sass (1940), has some washing action besides making the material firm and, in some cases, hard and brittle. When Bouin’s fixing fluid is used, ethyl alcohol is the solvent used in removing the solution and in washing the material. Dehydrating agents which possess hygrosopic properties are those most …

Heterothallism In Schizophyllum Commune, Lois G. Wilbershide

Bachelors’ Theses

For many years, workers have been striving to arrive at definite conclusions in regard to heterothallism in a great variety of plants. Much work has been done and there are many instances where heterothallism has been established and confirmed. Yet, in regard to Schizophyllum commune, few investigators have studied this phenomenon. However, much work of a different nature has been done on Schizophyllum since 1719 when attention was first called to this fungus partly because of the peculiar split character of the gills. It has been collected, classified, and worked on since that time, but the greater share of the …

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 …

Some Physical And Chemical Properties Of Wheat Starch In Relationship To The Maturity Of The Wheat, Claude W. Bice

Master's Theses or Doctor of Nursing Practice

Wheat is one of the most valuable of economic plants and is grown extensively throughout the world. Because of the unique chemical and physical properties of its gluten, wheat is superior to all other cereals for bread making. Its high starch content provides a tremendous source of energy as a food, as well as filling certain industrial starch needs, especially in textile manufacturing . The present study on properties of immature and mature wheat starches should be of inestimable worth for evaluation of damaged wheats for starch production, as well as for yielding fundamental information which may facilitate the use …

Effects Of Rootone On Shoot And Root Growth Of The Soy Bean And The Effects Of Nutrient Salts On The Same, Thomas Pastras

Biology Honors Papers

This thesis provides background information on plant hormones and plant physiology and describes an experiment on the effects of growth hormone on the root and shoot of the soy bean plant.

Species And Parasitic Diseases Of The Genus Viola In Milwaukee County, Ruth E. Gass

Bachelors’ Theses

This study was conducted to determine the species of Viola and parasitic diseases of the genus Viola. The specimens were collected in Wauwatosa, located in Milwaukee County; a few plants were collected in Jefferson County.

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 …