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Geology Of The Oak Cliff Quadrangle, Dallas County, Texas, Wilson Bryan

Field and Laboratory

Consolidated marine rocks of the Oak Cliff Quadrangle belong to a portion of the Upper Cretaceous Austin formation. On the basis of lithology the formation is divided into a lower chalk and a middle marl. Buried channels, some 6 feet deep and 95 feet across, occur in the lower chalk. They result from submarine scouring, indicating that deposition was not a continuous process. Bentonite seams, some as much as 6 inches thick, occur at various horizons in the lower chalk, pointing to periodic volcanic activity. Numerous small normal faults in the Austin formation may have resulted from differential compaction of …

Studies On The Cause And Transmission Of A Louisiana Citrus Disease Similar To Tristeza., Charles Adam Schexnayder

LSU Historical Dissertations and Theses

No abstract provided.

Streptomyces Leidnematis N. Sp., Growing On Two Species Of Nematodes Of The Cockroach, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

In 1948 Mr. J. R. Wennemark called the writer's attention to a filamentous growth extending from the cuticle of Leidynema appendiculata and Hammerschmidtiella diesingi, oxyurid nematodes found in the intestine of the American roach, Periplaneta americana, which was collected in Iowa City, Iowa. Because of the extreme filamentous accumulation it was thought to be the mycelium of a fungus. Further observation on material from roaches reared in Grand Forks, North Dakota, and Detroit, Michigan, showed that the organism was not fungus but a member of the Actinomycetaceae. Slides were sent to Profs. R. S. Breed and H. J. …

Scaphanocephalus Expansus (Crepl.), A Trematode Of The Osprey, In North America [Research Notes], Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

Examination of an osprey, Pandion haliaetus carolinensis furnished by Mr. Melvin Hoffman, Strawberry Point, Iowa, May, 1948, revealed about 30 trematodes which proved to be Scaphanocephalus expanses (Crepl.). This species which was redescribed in detail by Jagerskiold, (1904; Results of the Swedish Zoological Expedetion to Egypt and White Nile 1901 pt. 1) has a very large "expanded" flap-like anterior end and, to my knowledge, resembles no other trematode in that respect. The specimens have been deposited in the United States Nattional Museum Helminth Collection as No. 46437. Mr. Allen McIntosh (personal communication) has informed me that S. expanses has …

Whole Issue Nebraska Bird Review (Jan 1953) 21(1)

Nebraska Bird Review

Table of Contents

Two New Birds Added to the Nebraska List .................. 2

The Pileated Woodpecker Returns to Nebraska ...................... 3

Birds at Wayne (Nebraska). ....................... 4

Fall Field Day, 1952 ........................ 5

News and Announcements............................8

General Notes ............................9

Communications ............................12

Book Reviews ............................13

Blood Parasites Of Some Common Texas Birds, Andrew B. Couch Jr.

Field and Laboratory

Danilwesky observed and recorded avian plasmodia in 1885. Laveran (1891) emphasized the importance of this discovery and suggested that research on bird malaria might help to solve questions on human malaria. Since then, significant papers on bird malaria have been presented by such investigators as R. W. Hegner, W. H. and Lucy G. Taliaferro, C. G. Huff, R. D. Manwell, and R. Hewitt, who studied morphology, physiology, immunity, and transmission of the parasites. Hewitt (1940) made these earlier findings readily available in his monograph on bird malaria.

Hydatid Disease In Boreal Regions, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

It is the purpose of this paper to review the status of hydatid disease (caused by Echinococcus spp.) in the boreal regions of the world. Its importance has long been recognized in Eurasian countries, but only during recent years have investigators added anything significant to the knowledge of hydatid disease in North America. There is need to disseminate up-to-date information among medical workers in Canada and Alaska, where the disease is endemic in northern regions having a large aboriginal population. Therefore, particular emphasis will be placed on the situation in boreal North America.

Studies On The Helminth Fauna Of Alaska. Xi. Helminth Parasites Of Microtine Rodents--Taxonomic Considerations, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A survey of the helminth parasites of Alaskan rodents has been carried on by the writer since the winter of 1948-1949, as a continuation of an investigation begun in the central United States in 1942. Results of this work indicate that, despite the size of the Territory of Alaska, the survey is complete enough to furnish a reasonable knowledge of the species of helminths parasitic in microtine rodents in Alaska. Information derived from previous investigations serves as a standard against which the completeness of the present work may be judged. In the writer's opinion, the continuation of this work on …

New Flax Variety

Journal of the Department of Agriculture, Western Australia, Series 3

The Minister for Agriculture (Sir Charles Latham) announced recently that a new flax variety developed in this State has been accepted for registration and released for commercial cultivation.

An Example Of The Influence Of Modifying Genes In Neurospora, Francis A. Haskins, Herschel K. Mitchell

Department of Agronomy and Horticulture: Faculty Publications

The influence of genetic modifiers, those genes which affect the expression of other genes, has been demonstrated in a wide variety of organisms. In Neurospora crassa the influence of modifiers is suggested by quantitative differences in growth substance utilization among different reisolates of a mutant strain (Good, Heilbronner, and Mitchell, 1950), and genetic suppression (Houlahan and Mitchell, 1947) may be regarded as an extreme type of modification. In addition, Houlahan and Mitchell (1948) and Mitchell and Mitchell (1952) have demonstrated extensive interactions among genes causing pyrimidine, lysine, and arginine requirements, and Srb (private communication) has found a case in which …

The Teaching Of Science, Sherwin Maeser

Faculty Honor Lectures

Like to teach! Whether with the expectant, half-frightened freshman, the senior, worried about his preparation now that . he must get out and meet competition, or the graduate student interested in new discoveries, I like to work with all of them.

I have been teaching a long time now. As has always been the case when one generation is thinking of turning over its work to the next, I am glad to have the opportunity to talk about some of the things that I consider important in this job of teaching.

The most varied and the most acute problems of …

Qualitative Identification Of The Components Of The Okra Pod Polysaccharide Fraction By Paper Chromatography, John Joseph Eisch

Bachelors’ Theses

The research or Dr. Hiram Benjamin of the Marquette University Medical School on the intravenous injection of an aqueous solution of' okra powder for ulcer therapy resulted in investigations concerning its suitability as a · p1asma extender. Transfusion trials on dogs were so encouraging that its potential as a human volemic was readily recognized.

Since such use would require detailed knowledge of the polysaceharide's constitution for toxicity and metabolic evaluations, research was needed to elucidate the nature or the polysaccharide macromolecule. Observing the lack of any reported data concerning okra, Dr. Kenneth Brown or the Biochemistry Department or the Marquette …

Ascorbic Acid And Glucose: Their Relation To Rheumatic Fever In Utah, And Their Relation To Incidence Of Dental Caries In Idaho, Patricia Wood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Diseases which in the sixteenth century were found to be related to a deficiency of some substance in the natural foods consumed in the diet were later known as deficiency diseases. As early as 1881, Lunin found that rats could not live on a purified diet of carbohydrate, fat, protein and minerals, but could exist on a diet supplemented with certain natural foods. These findings were found to be in agreement with records of early descriptions of deficiency diseases. Scurvy was recognized very early in voyages made across oceans where ships had no means of being re-provisioned. Progress was very …

The Wheeler Site: A 3,500 Year-Old Culture In Dallas County, Texas, Wilson W. Crook Jr.

Field and Laboratory

Discovery and investigation of the Wheeler site near Carrollton, Dallas County, Texas, has led to the tentative identification of a 3,500-year-old, "Little Pluvial" age, non-pottery culture in north Texas; it seemingly is a phase of a larger complex which at one time occupied the upper reaches of the Trinity River drainage and the middle area of the Brazos River, and may possibly demonstrate relationships with the "Desert Cultures" of California-Lower California to the west, vestiges of a late contact with remnants of the old Plainview-type culture, and with the eastern Archaic from the Mississippi Valley.

A Report On Drosophila Collections In Nebraska, David D. Williams, Dwight D. Miller

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

Until rather recently little has been known of the Drosophila species of Nebraska. Sturtevant (1921) lists Nebraska as one of seven states from which no Drosophila had been reported. Patterson and Wagner (1943) show that collections of Drosophila pseudoobscura had been made in the vicinities of Scottsbluff and Kearney, but no other Drosophila species are reported from Nebraska in their publication.

Studies On The Causes And Control Of Seedpiece And Stubble Deterioration Of Sugarcane., Mohammed Abdul Wahid

LSU Historical Dissertations and Theses

No abstract provided.

The Evaluation Of Coated Papers Containing Varying Amounts Of Thermoplastic Adhesives, Roderick A. Perkins

Paper Engineering Senior Theses

Information is given on the effects of various concentration of styrene-butadiene latex and oxidized corn starch as binders in coated papers. Also data is given on the effects of increased amounts of styrene-butadiene latex in starch clay systems with respect to viscosity.

A New Species Of Andropogon From The Edwards Plateau Of Texas, F. W. Gould

Field and Laboratory

Recent study of Andropogon barbinodis Lag. and plants of southern Texas and northern Mexico commonly referred to A. perforatus Trin. ex Fourn. has disclosed interesting facts concerning these grasses.

A Preliminary Study Of The Distribution Of Fleas In Utah Known To Be Capable And Potential Vectors Of Plague, Dorald M. Allred

Theses and Dissertations

Plague outbreaks in the past have been disastrous where domestic rats and their fleas of certain species were common. Plague has been known to occur in most parts of the world (Robertson 1923), and has occurred as human epidemics for many centuries (Dubos 1948).

Stratigraphic Notes On The Maness (Comanche Cretaceous) Shale, Frank E. Lozo

Fondren Science Series

In 1941, the writer was advised of the opinions of T. L. Bailey, F. G. Evans, W. S. Adkins, and other geologists of the Shell Oil Company on the stratigraphic position of the uppermost Comanche shale unit recognized in the subsurface of eastern Texas. Their studies pointed to the conclusion that this unit, now known as the Maness shale, is (1) stratigraphically younger than the subsurface Del Rio (or Grayson) shale with which it usually had been correlated, and (2) conformably overlies the Buda limestone, at this date generally misidentified as the Georgetown limestone. An investigation of the controversial sequence …

A Genetic Study Of Complementary Genes For Purple Lemma, Palea, And Pericarp In Barley (Hordeum Vulgare L.), John William Thieret

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In certain plants the expression of various characters depends upon the presence of two pairs of complementary genes in the individual. The striking feature of this situation is that two plants, phenotypically alike or similar but of different and appropriate genetic constitution, may, after crossing, produce progeny which are phenotypically different from either parent.

Geology Of The Eagle Ford Quadrangle, Dallas County, Texas, William Louis Turner

Field and Laboratory

The Eagle Ford quadrangle includes an area of 62 square miles in western Dallas County. It is bounded by the parallels 32°45'00" and 32°52'30" N, and by the meridians 96°52'30" and 97°00'00" W. The towns of Irving and Eagle Ford are in the area, as are portions of Grand Prairie and Arcadia Park. A network of paved highways and graveled roads makes most of the quadrangle readily accessible by automobile. Physiographically, this area is part of the Black Prairie, a province of low relief in which the landscape has been largely shaped by running water. West and Elm forks of …

Effect Of Sodium Azide On Water Transfer In Root Tissue, Germaine Rachaner

Journal of the Arkansas Academy of Science

No abstract provided.

Forest Fires In The Northern Rocky Mountains, J S. Barrows

The Bark Beetles, Fuels, and Fire Bibliography

This is a report on an analysis of 36,000 forest fires in the northern Rocky Mountains. The analysis was made to gain a better understanding of the occurrence, behavior, control, and effects of fires, and in turn to obtain essential information required for improved planning and management of fire protection systems. The results present answers to these questions: 1) What is the magnitude of the regional fire problem? 2) What are the basic features of fire behavior under various topographic, fuel, and weather conditions? 3) What have been the results of organized fire control programs including fire prevention, detection, communication, …

Bulletin No. 350 - Cemeteries Of Box Elder And Summit Counties, Joseph A. Geddes, Carmen Fredrickson

UAES Bulletins

One of man's greatest challenges is to build institutions that adequately meet basic needs. A cemetery is a social institution invented to take care of needs related to the dead.

Times and conditions change. A design which seemed adequate when initiated may soon become archaic and out-moded if it is not modified in the light of new discoveries.

This study raises many issues about cemeteries. As one reads the bulletin many questions concerning the nature and function of other institutions arise. What is their condition in contrast with the cemeteries?

This publication, the first in an institution series planned by …

The Growth-Promoting Properties Of Quinic Acid, Malcom Gordon, Francis A. Haskins, Herschel Mitchell

Department of Agronomy and Horticulture: Faculty Publications

Evidence is accumulating that there is a common metabolic precursor to many of the benzene ring derivatives found in living organisms. Recent work by Davis and Tatum indicates that one such precursor is the naturally occurring shikimic acid (Fig. 1) since this compound serves as a growth factor for certain mutants of Escherichia coli and Neurospora which otherwise require a combination of tyrosine, phenylalanine, tryptophan and p-aminobenzoic acid for growth. These mutants cannot utilize the closely related, naturally occurring quinic acid (Fig. 1) as a substitute for any of their requirements.

Ecology And Silviculture Of Whitecedar And Associated Hardwoods In Southern New Jersey, Silas Little Jr.

Yale School of the Environment Bulletin Series

No abstract provided.

Leaflet No 1001 - Aerial Baiting For The Control Of The Little Plague Grasshopper (Austroicetes Cruciata Sauss), C. F. Jenkins

Bulletins 1 - 2999

Aeroplanes have been tested for grasshopper control in many parts of the world during the last decade but the insecticides used have been in either dust or spray form.

The aerial distribution of bran bait is quite a recent development in overseas countries and was tried for the first time in Western Australia during the spring of 1949.

Notes On Texas Compositae - Iv, Lloyd H. Shinners

Field and Laboratory

No abstract provided.

South Dakota Farm And Home Research, Agricultural Experiment Station

South Dakota Farm and Home Research: 1949 -1998

Liquid Seed Treatment Reduces Hazard [p] 25
Deep Freeze or Locker Plant Meat [p] 29
Fruits and Vegetables in the Home Freezer [p] 32
Looking Ahead to Irrigation [p] 34
Project Families Like Irrigation Farming [p] 36
Norghum—Its Feed Value for Lambs [p] 40
Controlling Heel Flies and Cattle Grubs [p] 43
Weed Control [p] 46
New Fruit Trees for South Dakota [p] inside back cover