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Articles 249811 - 249840 of 255945

Full-Text Articles in Life Sciences

Bulletin No. 251 - Apricot Varieties, Francis M. Coe Nov 1934

Bulletin No. 251 - Apricot Varieties, Francis M. Coe

UAES Bulletins

While this publication has as its primary purpose the presentation of data as a progress report on the apricot variety testing work of the Utah Agricultural Experiment Station, study of the apricot varieties being grown in the state and of the literature showed such a confusion of varietal nomenclature in orchards, nurseries, and even in the literature on apricot varieties, that it was considered desirable to review the literature and to describe the varieties at hand more completely than is usual with a report of this kind in the hope that by so doing the apricot variety situation might be …


Bulletin No. 252 - Groundwater: Part I: Fundamental Principles Governing Its Physical Control, Willard Gardner, T. R. Collier, Doris Farr Nov 1934

Bulletin No. 252 - Groundwater: Part I: Fundamental Principles Governing Its Physical Control, Willard Gardner, T. R. Collier, Doris Farr

UAES Bulletins

This article does not purport to present detailed specifications for engineering structures nor to enlighten engineers specifically as to devices or methods appropriate to the control of groundwater. It is the aim rather to discuss fundamental principles and to indicate applications.


Molasses-Agar: A Useful Medium For The Cultivation Of The Genus Monilia, Hardy A. Kemp, Sol Haberman Nov 1934

Molasses-Agar: A Useful Medium For The Cultivation Of The Genus Monilia, Hardy A. Kemp, Sol Haberman

Field and Laboratory

Species of the genus Monilia are easily cultivated be­tween the temperatures of 22°C and 38°C on solid media of slightly acid reaction. After cultivating stock strains of Monilia albicans and Monilia psilosis on Sabouraud's medium, honey agar, and molasses agar, it was found that molasses agar afforded the best means for cultivating these Oosporaceae.


Biometrical Study Of Goniobasis Comalensis Pilsbry From Two Diverse Habitats, Elmer P. Cheatum, E. D. Mouzon, Jr. Nov 1934

Biometrical Study Of Goniobasis Comalensis Pilsbry From Two Diverse Habitats, Elmer P. Cheatum, E. D. Mouzon, Jr.

Field and Laboratory

Much has been written on the part played by the environment in changing secondary characters of the more plastic invertebrates….During February, 1934, a collecting trip was made to San Marcos, Texas, where two contrasting aquatic habitats were found, both of which were inhabited by the branchiate snail Goniobasis comalensis. Several hundred individuals were collected from each habitat, the shells measured, and a statistical study made of size differences.


Collecting Fossil Elephants At Dallas, Texas, Ellis W. Shuler Nov 1934

Collecting Fossil Elephants At Dallas, Texas, Ellis W. Shuler

Field and Laboratory

That man was co-existent with the mastodon and mammoth in Europe is well established. Many geologists and archaeologists are convinced that man lived in North America during the Pleistocene but the belief is by no means universal. Certainly the archaeologist has a definite interest in the search for fossil elephants and for any evidence of their association with man….Elephants were widespread and numerous in Texas during the Pleistocene.


Rainfall On The Western Front During The World War, Edwin J. Foscue Nov 1934

Rainfall On The Western Front During The World War, Edwin J. Foscue

Field and Laboratory

Within the last fifty years many attempts have been made to produce rain by artificial means, but all have resulted in failures. The unusually dry summer of 1934 in central United States, from North Dakota to Texas, produced a new group of rainmakers and rain-making experiments. The details of their plans differed somewhat, but all worked on the so-called "concussion theory" that the detonation of high explosives in the upper atmosphere would produce rain. In each case claims were supported by the commonly accepted statement that rain always followed battles, and that the unusually heavy rain in France along the …


Further Observations On The Sex-Ratios Of Terrestrial Isopods, S. W. Geiser Nov 1934

Further Observations On The Sex-Ratios Of Terrestrial Isopods, S. W. Geiser

Field and Laboratory

Vandel contends that in terrestrial isopods the females are more numerous than males in collections. He gives tables showing the sex-ratios of collections of ten species…. Although Vandel finds that the sex-ratios of adult collections are one-sided in favor of the female sex, he nevertheless finds that in cultures of the species which he made, the sexes were about equally represented at birth, and in young populations. This accords with the findings of the present writer, who found the sexes approximately equal in very young populations of Armadillidium vulgare and Porcellio laevis.


The Ruffle Plant Again In Limpia Creek, Mayne Longnecker Nov 1934

The Ruffle Plant Again In Limpia Creek, Mayne Longnecker

Field and Laboratory

For the first time in thirty-two years the ruffle plant, Riella americana, rare American liverwort, has been collected in Limpia Creek, in the Davis Mountains of western Texas.


A Student Experiment In The Measurement Of Vapor Pressure, Fitzhugh Marshall Nov 1934

A Student Experiment In The Measurement Of Vapor Pressure, Fitzhugh Marshall

Field and Laboratory

The purpose of this experiment was to determine the changes in the vapor pressure of benzene with changes in temperature; and from these data to derive a vapor pressure-temperature curve.


That First Texas Botanist, S. W. Geiser Nov 1934

That First Texas Botanist, S. W. Geiser

Field and Laboratory

Winkler, in his useful account of botanical investigations in Texas, states (p. 5) that Jean Louis Berlandier, a French botanist in the employ of the Mexican Government, was the first to explore Texas botanically, while connected (1828) with the Comision de Limites under General Mier y Teran. In the present writer's own published studies, this statement was repeated, since the collections of Dr. Edwin James while a member of Long's Rocky Mountain Expedition (1819-20) were made in territory not a part of the historic province of Texas, but of Chihuahua, as maps of the period will show. In the modern …


The Blanton Student Observatory, John D. Boon Nov 1934

The Blanton Student Observatory, John D. Boon

Field and Laboratory

All of the large observatories, that have been constructed in recent years, are located in high and dry altitudes where the sky is almost always clear and the atmosphere is steady. It is a useless waste of money to locate a large telescope where climatic conditions are unfavorable…. The situation is quite different when it comes to the construction of small student observatories such as are found on the campus of many of the universities. Every city as large as Dallas, no matter what the atmospheric conditions may be, should have one or more small observatories where students may learn …


Alumni Notes Nov 1934

Alumni Notes

Field and Laboratory

No abstract provided.


A Thermoprecipitation Reaction On Tyrypansoma Equiperdum Infection On Laboratory Animals, Hildrus A. Poindexter Nov 1934

A Thermoprecipitation Reaction On Tyrypansoma Equiperdum Infection On Laboratory Animals, Hildrus A. Poindexter

College of Medicine Faculty Publications

No abstract provided.


Note From C. H. Couch To S. B. Simmons, C. H. Couch Oct 1934

Note From C. H. Couch To S. B. Simmons, C. H. Couch

Documents

Note from C. H. Couch to S. B. Simmons, concerning no changes at the school.


Letter From Isaac Rogers To S. B. Simmons. Letter From S. B. Simmons To Isaac Rogers, Isaac Rogers, S. B. Simmons Oct 1934

Letter From Isaac Rogers To S. B. Simmons. Letter From S. B. Simmons To Isaac Rogers, Isaac Rogers, S. B. Simmons

Documents

Letter from Isaac Rogers to S. B. Simmons, concerning garden program and car. Letter from S. B. Simmons to Isaac Rogers, concerning Relief Garden Program and car.


Lincoln Academy Vocational Fair, Lincoln Academy Oct 1934

Lincoln Academy Vocational Fair, Lincoln Academy

Documents

Program for the Lincoln Academy Vocational Fair.


Letter From Otis Evans To Professor Simmons. Letter From S. B. Simmons To Otis Evans, Otis Evans, S. B. Simmons Oct 1934

Letter From Otis Evans To Professor Simmons. Letter From S. B. Simmons To Otis Evans, Otis Evans, S. B. Simmons

Documents

Letter from Otis Evans to Professor Simmons, informing him of vocational agriculture course. Letter from S. B. Simmons to Otis Evans, concerning certification.


Letter From S. B. Simmons To C. S. Wynn. Report Form, S. B. Simmons, North Carolina Agricultural & Technical State University Oct 1934

Letter From S. B. Simmons To C. S. Wynn. Report Form, S. B. Simmons, North Carolina Agricultural & Technical State University

Documents

Letter from S. B. Simmons to C. S. Wynn, concerning job offer. Report form for agriculture teachers


Letter From S. B. Simmons To J. J. Mitchell; Farm Credit Study Survey Form, S. B. Simmons, New North State Farmers Oct 1934

Letter From S. B. Simmons To J. J. Mitchell; Farm Credit Study Survey Form, S. B. Simmons, New North State Farmers

Documents

Letter from S. B. Simmons to J. J. Mitchell, concerning a previous letter about travel. Survey form for Farm Credit Study.


Kentucky Warbler (Vol. 10, No. 4), Kentucky Library Research Collections Oct 1934

Kentucky Warbler (Vol. 10, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Forest Fire Damage Studies In The Northeast--I. Bark-Beetles And Fire Damaged Hardwoods, Paul W. Stickel Oct 1934

Forest Fire Damage Studies In The Northeast--I. Bark-Beetles And Fire Damaged Hardwoods, Paul W. Stickel

The Bark Beetles, Fuels, and Fire Bibliography

In reporting the damage to trees scorched lightly at the base by fire the average fire warden and even the technically trained forester is given to stating that little harm has been done providing the tree crowns remain green. Such a statement is far from being correct, failing as it does to take into account the aftermath of insect and fungus damage which invariably follows even the lightest of surface fires. In the case reported herein, over 50 per cent of the fire-scorched hardwoods showed signs of the presence of ambrosia-beetles, whose work, even if the trees continue to live, …


Farm Sheep Facts, M. A. Alexander, W. W. Derrick, W. Tolman Oct 1934

Farm Sheep Facts, M. A. Alexander, W. W. Derrick, W. Tolman

Nebraska Agricultural Experiment Station: Historical Circulars

This circular discusses the sheep industry, recommendations for care of ewes, rams, and lambs, shearing and wool, and showing sheep.


North And South Dakota Horticulture, October 1934, North And South Dakota Horticultural Societies Oct 1934

North And South Dakota Horticulture, October 1934, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 6, Number 10

The Prairie Chicken
N.D. News Letter
Prolonging the Season of Garden Vegetables and Flowers
Poisonous Plants a Hazard
Extracts from the Diary of a Traveling Man
Horticulture Group on Tour
Dell Rapids Flower Show
Reader's Letters
Notes from a N.D. Garden
Perennials from Seeds
Wall Garden Notes


Whole Issue Nebraska Bird Review (Oct 1934) 2(4) Oct 1934

Whole Issue Nebraska Bird Review (Oct 1934) 2(4)

Nebraska Bird Review

Contents

A Systematic Analysis of the Measurements of 404 Nebraska Specimens of Geese of the Branta canadensis Group, Formerly Contained in the D. H. Talbot Collection. By Philip A. DuMont and Myron H. Swenk ... 103

General Notes ... 117

Editorial Page ... 122

The 1934 Migration Season ... 123

Here and There with the N.O.U. Members ... 126

A Brief Synopsis of the Birds of Nebraska. III. Totipalmate Swimmers (Pelecaniformes) ... 128

A History of Nebraska Ornithology. I. The Ancient Period (Continued). Aboriginal Man and Bird Life ... 137

Index ... 144

More Important Published Lists of the Birds …


Stability Of Climax Prairie And Some Environmental Changes Resulting From Breaking, J. E. Weaver, Evan Flory Oct 1934

Stability Of Climax Prairie And Some Environmental Changes Resulting From Breaking, J. E. Weaver, Evan Flory

Department of Agronomy and Horticulture: Faculty Publications

Continued study of the great midcontinental grasslands of North America throughout a period of years has impressed the writers with the high degree of stability of the climax prairie. This phenomenon has been carefully considered in a study of the types of prairie in the Missouri Valley over an area of several thousand square miles centering in eastern Nebraska but including five neighboring states. Present studies on the deterioration of the prairie under the impact of grazing, and changes in edaphic and atmospheric environment with the breaking and cropping of the land have further emphasized the stabilizing influence of a …


Letter From Ecd To Prof. Letter From S. B. Simmons To E. C. Debnam, E. C. D., S. B. Simmons Sep 1934

Letter From Ecd To Prof. Letter From S. B. Simmons To E. C. Debnam, E. C. D., S. B. Simmons

Documents

Letter from ECD to Prof., concerning growth of corn and district fair. Letter from S. B. Simmons to E. C. Debnam, stating that he would try to be present for his district fair.


Letter From Noah W. Slade To S. B. Simmons. Letter From S. B. Simmons To N. W. Slade, Noah W. Slade, S. B. Simmons Sep 1934

Letter From Noah W. Slade To S. B. Simmons. Letter From S. B. Simmons To N. W. Slade, Noah W. Slade, S. B. Simmons

Documents

Letter from Noah W. Slade to S. B. Simmons, concerning visit and salary. Letter from S. B. Simmons to N. W. Slade, concerning certificate.


Letter From Isaac Rogers To S. B. Simmons. Letter From S. B. Simmons To Isaac Rogers, Isaac Rogers, S. B. Simmons Sep 1934

Letter From Isaac Rogers To S. B. Simmons. Letter From S. B. Simmons To Isaac Rogers, Isaac Rogers, S. B. Simmons

Documents

Letter from Isaac Rogers to S. B. Simmons, concerning a buying a car. Letter from S. B. Simmons to Isaac Rogers, concerning assisting in finding a car.


Letter From J. R. Thomas To S. B. Simmons, J. R. Thomas Sep 1934

Letter From J. R. Thomas To S. B. Simmons, J. R. Thomas

Documents

Letter from J. R. Thomas to S. B. Simmons, outlining plans for NFA conference proceedings.


Note From Draughan To S. B. Simmons, Draughan Sep 1934

Note From Draughan To S. B. Simmons, Draughan

Documents

Note from Draughan to S. B. Simmons concerning visit.