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Notes On Some Workers In Texas Entomology, 1839-1880, S. W. Geiser

Field and Laboratory

Extended historical investigations have revealed some ninety-eight entomologists, mostly amateurs, who collected or studied insects in Texas from 1833 to 1880. The earliest of these naturalists appears to have been Thomas Drummond, Scottish botanist, who collected insects for William Kirby, in Austin's Colony in 1833-34. I list here with brief biographical notes twenty-three of the more noted or productive of these students and collectors.

The Goss Lemming Mouse, Synaptomys Cooperi Gossii (Goues), In Nebraska, Edson Fichter, Merle F. Hansen

Bulletin of the University of Nebraska State Museum (1924–2023)

In the course of studies on the cestode parasites of microtine rodents by one of the authors (Hansen), specimens of mice were sent to the United State National Museum where they were identified by Dr. David H. Johnson. Two of these microtines proved to be Synaptomys cooperi gossii (Coues). These specimens of Synaptomys (U.S.N.M. Nos. 282343 and 282344), collected at Lincoln, Lancaster County, Nebraska, on September 16, 1946 (male) and November 20, 1946 (female), respectively, are the first ones to be identified from Nebraska.

A Historical Study Of A Wilt Disease Of Chrysanthemums, Eugene Constantine Gasiorkiewicz

Bachelors’ Theses

This thesis is the result of research at Marquette University on Chrysanthemums for the past year. The specific problem was to study the development of the pathogen, Fusarium conglutinans Wr. var. callistephi Beach, which was the cause of serious infection of chrysanthemums. This treatise covers the procedure and methods used in the study.

Research In Agriculture 1945-1946: Annual Report., W G. Taggart

LSU Agricultural Experiment Station Reports

No abstract provided.

Farm Fishponds, Verne E. Davison

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

An important part of soil and moisture conservation is making the best use of every acre on the farm. Where a suitable site for a farm pond exists, no better use can be made of such land than to develop it for the production of fish for the farm family. The recreation the pond affords adds much to the pleasure of rural life.

Thousands of farms have good pond sites. Properly developed and managed ponds may provide both food and pleasure to more than a million farm people.

This bulletin tells how to have good ponds. It explains how to …

Riboflavin Production By Molds, George L. Peltier, Raymond Borchers

Department of Biochemistry: Faculty Publications

Very little information is at hand regarding the ability of molds to synthesize riboflavin. Few citations pertaining directly to riboflavin production by true

molds are available. Pontovich (1943) found as much as 2 mg riboflavin per g

of Aspergillus flavus mycelium. Tanner et at. (1945) determined the quantity of

riboflavin in the submerged fermentation media of Penicillium chrysogenum.

The highest value found was 1. 36 mg per ml. The primary purpose of this study

was to screen several hundred isolates, recently obtained from soil, crop residues,

and composts, for their ability to produce riboflavin on a wheat bran substrate.

Studies On Synthesis By Enzymatic Catalysis., Charles Henry Wabnitz 1916-2004

Electronic Theses and Dissertations

No abstract provided.

Taxonomic Studies Of Louisiana Aphids., Henry Bruce Boudreaux

LSU Historical Dissertations and Theses

No abstract provided.

Some Microtechnical Experiments And Recommendations Of New Prestaining Techniques, Edward D. Wood

University of the Pacific Theses and Dissertations

The preparation and staining of biological structures for microscopic examination is of extreme importance to the science of biology since almost all phases of biological advance are, at least to some degree, dependent upon microtechnical methods. Nevertheless, research workers and students of biological science are sooner or later impressed with the inadequacy of many of the microtechnical methods used by them and their colleagues. In the field of microtechnique there is difficulty in finding standardized methods which will uniformly bring optimum results. Throughout most procedures there seem to be variables over which no definite controls have been established. Microtechniques have, …

Contributions To The Study On Helminth Fauna Of Dillon Beach, Francis C. Gale

University of the Pacific Theses and Dissertations

Studies on trematodes of marine organisms of the Pacific Coast have been of a scattered and fragmentary nature. J. Stafford (1904) collected and described a number of trematodes from fishes of the north Pacific, but, in his historical survey, Manter (1926) fails to mention specifically any studies covering the waters south of Canada. More recently, in the United States, several contributions to the field have been made by Dr. John E. Guberlet at the University of Washington and at the College of the Pacific by Dr. Alden Noble, under whose guidance this study was made. James Park (1937) revised the …

Cytology Of Glomerella., George Blanchard Lucas

LSU Historical Dissertations and Theses

No abstract provided.

Studies On Genetics And Classification Of Four Forms Of Pellicularia Filamentosa (Pat.) Rogers., Beatrice Barbara Exner

LSU Historical Dissertations and Theses

No abstract provided.

The Geologic History Of The Bison In The Great Plains (A Preliminary Report), C. Bertrand Schultz, W. D. Frankforter

Bulletin of the University of Nebraska State Museum (1924–2023)

THE GEOLOGIC history of the bison in North America is a subject which has received little attention to date. Osteological rather than geological problems have been the main concern of most writers who have so far published. If the geologic history of the bison is to be learned, it will be necessary to devote more time and effort in the field in determining the age of the deposits in which various specimens have been discovered and in making more extensive collections from deposits of known age. Unfortunately the majority of the type specimens have been surface finds and little attempt …

Fusarium Conglutinens Variety Callistephi, Beach And Its Effect On The Chrysanthemum, Mary Heimick Palmer

Bachelors’ Theses

This thesis is the result of extensive research for the past year at Marquette University on Chrysanthemums. In particular, I refer to a specific problem, that of an attempt to ascertain with certainty the cause of a serious infection of Chrysanthemums. This treatise covers the procedure and methods used in discovering the actual pathogen, and my reasons for believing that this particular pathogen is Fusarium conglutinens variety Callistephi.

Lizards Feeding On Ants In Utah, George F. Knowlton, William P. Nye

All PIRU Publications

No abstract provided.

Kentucky Warbler (Vol. 22, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Pollination Cycles And Pollen Dispersal In Relation To Grass Improvement, Melvin D. Jones, L. C. Newell

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The plant breeder is initially concerned with gaining a knowledge of the breeding behavior of his plant materials in order that improvement may be undertaken effectively. It is important to know the different characteristic pollination habits of these plants. To develop and apply techniques applicable to the improvement of a given grass crop, it is desirable to know the time of day and the number of days that the grass sheds pollen. The effects of temperature, humidity, light, and wind on pollination must be considered. Once superiority of germplasm is obtained, the most important consideration is the maintenance of this …

The Rh Factor: Recent Developments And A Study Of Its Incidence Among The Indians Of The Southwest, Earl B. Gerheim

Biology ETDs

The purpose of this study was to continue the work started in determining the incidence of the Rh factor among Indians of the Southwest and review the related literature. This paper will include the author's initial results in which 251 Indians were tested.

There is at this time no published account on the incidence of the Rh factor among the Indians of the Southwest; therefore, this is important from the standpoint of originality. The problem has medical importance in the role which Rh plays in transfusion and congenital hemolytic disease, otherwise known as erythroblastosis fetalis. The results will serve as …

Pig Typhus (Salmonellosis Suis), L. Van Es

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Salmonellosis suis or pig typhus, also designated as pig typhoid, infectious necrotic enteritis, or "necro," is an infectious disease among young pigs. It constitutes a major factor in the mortality of juvenile swine, and as such must be regarded as a more or less perennial hazard in swine production. Infectious necrotic enteritis caused by Salmonella suipestifer is the subject of the present publication.

A Cytological Study Of The Salivary Gland Chromosomes Of The Attached-X Variety Of Drosophila Melanogaster, Jack Schull

Bachelors’ Theses

The detailed study of -the salivary chromosomes of the Diptera has been of great importance in substantiating cytologically the theories of genetics. A noteworthy example of the importance of cytological study is the non-disjunctive phenomenon which has occurred on at least several occasions in the strain of Drosophila melanogaster. Bridges (1913) was the first to report nondisjunction of sex chromosomes which was an important confirmation of the chromosome theory. L. V. Morgan (1922) used the cytological study of the germ cells of Drosophila melanogaster to prove that there was no disjunction of the sex chromosomes in the attached-X strain.

A Comparison Of The Autonomic Nervous System Of The Cat And The Pigeon, William P. Mccarthy

Bachelors’ Theses

The purpose of this thesis is to describe the autonomic nervous system of the cat and pigeon and to compare them as to their structure. This comparison will consist in noting the differences and points of similarity between the two animals. The autonomic nervous system of the cat is more complex than that of the pigeon and for that reason the comparison will consist in pointing out the parts of the autonomic nervous system present in the cat, but which are not found in the pigeon. In noting the points of similarity only the most important will be treated.

Kentucky Warbler (Vol. 22, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Developmental Anatomy Of Descurainia Pinnata, Robert D. Spensley

Biology ETDs

This study is concerned mainly with the morphological development of Descurainia pinnata subspecies ochroleuca (Wooton) Detling, a member of the tribe Sisymbrieae and subtribe Descurainiinae of the Cruciferae. Although commonly referred to as Sophia by many botanists, this genus is otherwise known as Descurainia and sometimes partly included in Sisymbrium. D. pinnata is listed as Sisymbrium canescens in Gray's manual, as Sophia pinnata by Coulter and Nelson, as Descurainia pinnata by Kearney and Peebles, and as Sophia ochroleuca by Wooton and Stanley.

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 …

A Study Of The Tolerance Of Drosophila Melanogaster For Certain Chemicals Used In An Attempt To Produce Mutations, Marian L. Collins

Bachelors’ Theses

The problem of inducing mutations holds a fascination for the scientist because no one has as yet adequately explained the cause of mutations in nature. In attempts to solve this riddle, X-rays have been used most extensively to induce mutations, but because of the recent discoveries regarding the powerful effect of chemicals and fungi produced chemical compounds upon tropical disease-carrying insects, this field of experimentation is being reinvestigated in the hope of clarifying still undefined phases of the subject.

The purpose of this experiment was to determine the capacity of different types of chemicals to produce mutations, the mutation rate …

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 …

Mirid-Bug Injury As A Factor In Declining Alfalfa-Seed Yields, Charles J. Sorenson

Faculty Honor Lectures

During the forty or more millions of years that insects have inhabited the earth they have developed remarkable adaptations and great powers of reproduction that have enabled them to spread over most of the world and occupy all of its habitable environments. In cultivating the land and in growing crops, man has disturbed the balance in nature which formerly prevailed. By doing this he has unwittingly assisted many insect species to multiply in unprecedented numbers by providing them with more delectable food in abundance and by transporting them from place to place and from continent to continent in his migrations …