Life Sciences Commons^™

Some Aspects Of Soil Moisture In The Forest, Ian J. Craib

Yale School of the Environment Bulletin Series

By determining the moisture content of carefully selected soil samples taken at various depths down to three feet, the moisture content of soils in the forest and in the open have been compared. The soils investigated were similar in their mechanical properties. Part I is an investigation of the effect of forest cover on the amount of water in the soil over the growing season and its availability. Part II is an investigation of the effect of root competition on the available water supply of forest soils.

New North State Farmers Roster Of Modern Farmers, New North State Farmers

Documents

The New North State Farmers roster of Modern Farmers.

Descriptions Of Five New Species Of Vespoid Wasps (Hymenoptera), Raymond Roberts

Department of Entomology: Faculty Publications

While working on a taxonomic study of the superfamily Vespoidea, the writer has discovered a number of species that are new to science. Following are descriptions of, and comments on five new forms, the type specimens of all of which are in the collection of the. University of Nebraska. Acknowledgment is made of the assistance of Professor lIyron H. Swenk in the progress of this work and for criticisms in the preparation of this paper.

Some Aspects Of Light In The Forest, Amihud Grasovsky

Yale School of the Environment Bulletin Series

In this present investigation an attempt is made to determine experimentally to what extent light controls the vegetation on the forest floor and, consequently, succession of the forest flora, and whether under natural canopies light can be looked upon as a limiting factor in plant survival.

The general conclusion reached is that the intensity and quality of the light reaching the forest floor are not the determining factors in accounting for the presence or absence of reproduction in the fully stocked forest where the investigation was made.

Translation By Joseph Szanto Of Kotlan, Sandor, Mocsy, Janos, And Vajda, Todor. 1929. A Juhok Coccidiosisa'nak Okozo'i Egy U'J Faj Kapcsa'n = [Coccidiosis Of Sheep In Connection With A New Species.] Allatorvosi Lapok 52(23): 304-306, Sandor Kotlan, Janos Mocsy, Todor Vajda, Joseph Szanto

Harold W. Manter Laboratory of Parasitology: Library Materials

Translation number 4, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, United States

Translation by Joseph Szanto of Kotlan, Sandor, Mocsy, Janos, and Vajda, Todor. 1929. A juhok coccidiosisa'nak okozo'i egy u'j faj kapcsa'n = [Coccidiosis of sheep in connection with a new species.] Allatorvosi Lapok 52(23): 304-306

Translation from Hungarian to English by Joseph Szanto of University of Illinois, Urbana, Illinois, United States, July 7, 1960 (4 pages)

Studies On The Intestinal Absorption Of Histamine. I. The Effects Of Various Chemical Agents Applied To The Mucosa, Lambert Francis Mammoser

Master's Theses

No abstract provided.

Roster And Records Of Secretary: 1903-1929, Iowa Academy Of Science

Iowa Academy of Science Documents

Meeting minutes, conference programs, and more from the Iowa Academy of Science during the years 1903-1929.

The Mandibular Tusks Of Amebelodon Fricki, Erwin H. Barbour

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

The ponderous mandible of the great shovel-tusked mastodon, Amebelodon fricki, was figured and described before it was practicable to remove the plaster cinches. In the meantime, this rare specimen has lain on its sand table awaiting the time when sections and casts could be made before mounting it permanently. A rare specimen, especially if heavy, unwieldy, and fragile, is rarely dismantled for study after it is mounted and installed in its case. A gelatine cast of the alveoli has been made, and through the assistance of Mr. Murray Jerome Roper, a cast of the left mandibular tusk has just been …

The Frequency Of Somatic Mutation In Variegated Pericarp Of Maize, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

Some years ago (Emerson 1922) the writer announced that in F₂ of

certain crosses of variegated with colorless pericarp in maize the heterozygous

individuals changed to self color more frequently than did the homozygous

individuals of the same cultures. No “explanation” of this phenomenon

was then apparent, but later results, though still far from affording

an adequate solution of the problem, have furnished at least a working

hypothesis. The original unpublished paper, with minor modifications,

is given below, under the heading. “Somatic mutations in heterozygous

and in homozygous variegated pericarp.”

Truancy In The Public Schools : Its Cause And Cure., Kathleen Miller

Electronic Theses and Dissertations

In this age in which we live it is not hard to find a problem but it is often difficult to choose one. These problems have arisen as a result of the complex social and industrial institutions which have evolved as a result of human inventiveness and the competition among men to better our living conditions and increase our comforts. According to statistics compiled by the General Federation of Women's Clubs, the proportion of those who enjoy these modern conveniences is small when compared to those who have suffered as a result. The problem of this study is one which …

Annual Report Covering My Work, W. A. Jordan

Documents

Annual report of vocational agriculture teacher W. A. Jordan.

The Insects And Mites Injurious To Poultry In Nebraska And Their Control, M. H. Swenk, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Circulars

There are a number of different kinds of insect and mites (arthropods) that are more or less injurious to poultry in Nebraska. This circular is designed to give practical information concerning these pests and their control.

Ledger Recording Of Bread Received 1928 - 1932, Griffin Bakery

Manuscripts

Ledger recording of breads received between November 1928 and June 1932 at Griffin's Bakers and Confectioners, 21 Shop Street, Galway.

Circular No. 75 - Selecting Dairy Cows: Appearance Less Important Than Performance, George Q. Bateman

UAES Circulars

This is a cost study of three aged grade cows--E-10, E-11, and E-13--handled under identical conditions on the Dairy Experimental Farm. The three cows have been treated exactly the same since they came into the herd, all of the feed being weighed to each cow and the feed ref used weighed back. Each milking has been weighed and sampled daily; butterfat tests have been made every ten days.

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

The Kentucky Warbler

No abstract provided.

Vitis Aestivalis F.Michx., A. H. Graves

Specimens by Name

No abstract provided.

Circular No. 74 - Rules And Regulations For The Fifth Utah Intermountain Egg-Laying Contest, Byron Alder

UAES Circulars

This contest is conducted on a part of the Utah Agricultural College Farm near the experimental poultry yards. It is managed by the Poultry Department with an experienced poultry raiser in direct charge of the feeding and care of the hens in the contest. The buildings, grounds, and fences were built and furnished by the Experiment Station.

Circular No. 73 - Annual Summary Of Publications

UAES Circulars

Circular No. 73 contains a summary of publications issued by the Utah Agricultural Experiment Station, through its Division of Publications, since July 1, 1927. The publications of this Station are no longer sent to a general mailing list (except in cases of libraries, state editors, county agricultural agents, state vocational agricultural teachers, and state agricultural inspectors), but are sent only on request. Therefore, copies of any of the publications listed will be sent without charge to those requesting them as long as the supply is available. However, in the case of reprints (abstracts of scientific and technical papers) the …

Kentucky Warbler (Vol. 4, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

The Extent To Which Vocational Agricultural Instruction Is Being Used By Those Students Who Have Taken The Course One Or More Years, S. B. Simmons

Documents

The study is on how vocational education for African-American students has been effective in Public Schools with the passing of the Federal Vocational Act in 1917.

Initiation Of Development In Arbacia, E. E. Just

Faculty Reprints

No abstract provided.

Bulletin No. 207 - The Physical Cure Character Of Milk And Its Relationship To The Digestability And Food Value Of Milk For Infants, R. L. Hill

UAES Bulletins

In the feeding of infants,' cows' milk is the best and most common substitute for human milk. In the feeding of delicate infants, however, considerable difficulty is often experienced from its use. The ideal substitute for mothers' milk has not been found, and most of the clinical effort has been directed towards the modification of cows' milk for infants.

Comparatively little research has been done on the difference in the digestibility and food value of milks from different cows for the infant. It is a well-known fact that the curd of cows' milk forms in a tough mass which varies …

Bulletin No. 206 - Treehopper Injury In Utah Orchards, Charles J. Sorenson

UAES Bulletins

Treehopper injury is a problem that has given many fruit growers in Utah some concern during recent years. These people have observed that their young fruit trees and the twigs and smaller branches of older trees have been attacked during the autumn of each year in a manner that produced numerous cuts which later formed scars. The trees frequently became unthrifty, and more or less deformed and stunted, as a result of these annual attacks.

The investigation reported in this publication was made for the purpose of ascertaining the present status of the treehopper situation in Utah orchards.

Bulletin No. 205 - The Beet Leafhopper In Utah: A Study Of Its Distribution And The Occurrence Of Curly-Top, George F. Knowlton

UAES Bulletins

The sugar-beet industry of Utah, and many other western states, has suffered enormous losses from curly-top. Under natural conditions this disease is transmitted, so far as known, solely through the feeding of the beet leafhopper, Eutettix tenellus (Baker), the so-called "white fly." The serious damage of 1924 and 1926 has especially emphasized the necessity for more knowledge concerning the problem.

Initiation Of Development In Arbacia, E. E. Just

Department of Biology Faculty Publications

No abstract provided.

Sporogenesis In Botrichium Virginianum Swartz, Lewis Abel Stocking

Bachelors’ Theses

The earliest resultful work done in Pteridophytes, very closely similar to Botrychium Virginianum Swartz, was the work of Goebel (1890) on the Ophioglossales. Bower (1890) followed Goebel in his work on the Ophioglossales. He completed a work in 1896, which according to Burlingame (1907), who also did valuable work on the Ophioglossales, is the most comprehensive and satisfactory that has thus far been done. This work had a stimulating effect upon the early study of Botrychium Virginianum Swartz because of the almost entirely similar histology of the two plants. Burlingame’s (1907) work in the Ophioglossales, was done in 1907. He …

The Anatomy Of The Honeybee, Carol M. Steib

Bachelors’ Theses

The honeybee has lived In a society under such complex laws and has executed such varied and difficult labors that it has attracted the attention of men and women from the very earliest of times. Aristotle, Cato, Varro, Pliny, Columella, Pollodius, all studied the bee; as also did Arlstomachus (who, if we are to believe Cicero, watched them for forty-eight years) and Phylisius whose writings have been lost.

Branched Cells Of Pteris Cretica L., Var. "Albo-Lineata, Hort And Pellaea Viridis (Forksk) Prantl", Mary Elizabeth Trechter

Bachelors’ Theses

The fern gametophyte offers a large field for experimental work, not only in the reproductive processes but in the development of prothallia from the germination of the spore. The ordinary fern spore germinates on soil or in water. Prothallia, which have formed branched cells, have been found by a number of workers, and attempts have been made by some to explain the cause of the branching.

The Development Of The Gametophyte And The Apogamous Embryo Of Pellaea Viridis (Forksk) Prantl, Eugene Stowell Mcdonough

Bachelors’ Theses

A sporophyte tissue element in the cells of a fern gametophyte was first reported by Leszcyc-Suminski (1848) who found tracheids near the apical notch of the prothallium of Pteris sulcata L.

Favorable Cultural Conditions For Tuber Development In Nephrolepis Cordifolia (L.) Presl. (Nephrolepis Tuberosa (Bory.)Willd.), Hazel Mae Henderson

Bachelors’ Theses

Recently there has been brought to the attention of writers a number of plants that produce water-storing organs commonly known as tubers. Luerssen, (Campbell, 1905) refers to special reproductive bodies or tubers in Marsilia hirsuta. These tubers are thought to survive long periods of drought, and to germinate under favorable conditions. Nephrolepis cordifolia (L.) Presl., one of the Boston ferns, which produces tubers in large numbers has interested a number of investigators.