Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 250351 - 250380 of 256548

Full-Text Articles in Entire DC Network

North And South Dakota Horticulture, November 1935, North And South Dakota Horticultural Societies Nov 1935

North And South Dakota Horticulture, November 1935, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 8, Number 11

The Rock Wren, O.A. Stevens
N.D. News Letter, A.F. Yeager
Winter Protection, P.L. Keene
Beekeeping Notes, F.D. Butcher
President's Corner, F.X. Wallner
Desert Wild Flowers, A.L. Truax
Secretary's Corner, W.A. Simmons
The Gooseberry, H.L. Walster


Gypsum - Its Value To Texas, May L. Whitsitt Nov 1935

Gypsum - Its Value To Texas, May L. Whitsitt

Field and Laboratory

"Gyp" water is for many people the only means of acquaintance with gypsum. A grayish deposit in the tea­ kettle and the difficulties encountered when "gyp" water is used for laundering do not serve as a fitting introduction to the beautiful alabaster of the Taj Mahal. For alabaster is gypsum, too. There are still other forms of gypsum which are making this mineral increasingly important.


Dinosaur Track Mounted In The Band Stand At Glen Rose, Texas, Ellis W. Shuler Nov 1935

Dinosaur Track Mounted In The Band Stand At Glen Rose, Texas, Ellis W. Shuler

Field and Laboratory

Dinosaur tracks have been reported from at least nine localities in Hood County, Texas. All tracks occur in the Glen Rose limestone. The vertical range of the tracks is very limited so far as present studies go. Locally, the tracks are known as "bird tracks". One locality near the county seat, Glen Rose, was described in 1917. Recently a superb dinosaur track was taken from the "fourth crossing" of the Paluxy River about six miles west of the town of Glen Rose and placed by the citizens of the community in the base of the bandstand located in the court …


Charles Wright's 1849 Botanical Collecting-Trip From San Antonio To El Paso; With Type-Localities For New Species, S. W. Geiser Nov 1935

Charles Wright's 1849 Botanical Collecting-Trip From San Antonio To El Paso; With Type-Localities For New Species, S. W. Geiser

Field and Laboratory

In the spring of 1849, Lt. William Farrar Smith, of the Corps of Topographical Engineers, U. S. A., discovered a southern route between San Antonio and El Paso.


Additional Data On Feeding Habits Of The Short-Eared Owl, Claude Kelly Nov 1935

Additional Data On Feeding Habits Of The Short-Eared Owl, Claude Kelly

Field and Laboratory

During January, 1935, forty large owl pellets were collected from the roosting site of a colony of approximately eighty short-eared owls, located along the northwestern marshy edge of White Rock Lake, near Dallas, Texas. The owls had occupied the area for a period of nearly two months during their migration. Each of the forty pellets collected was broken up by washing, the bones removed, placed in numbered boxes and sent to the Division of Wild Life Research, U.S. Bureau of Biological Survey, for analysis.


The Growth Of Dallas From 1850 To 1930, Edwin J. Foscue Nov 1935

The Growth Of Dallas From 1850 To 1930, Edwin J. Foscue

Field and Laboratory

With the Texas Centennial being held in Dallas next summer, and emphasis being placed upon the development and growth of the state throughout the period, it seems fitting to trace briefly the growth of the centennial city even though it be only ninety-five years old at the time.


Histological Changes In The Liver Of Salamanders During Starvation, Jean Stevenson Nov 1935

Histological Changes In The Liver Of Salamanders During Starvation, Jean Stevenson

Field and Laboratory

The purpose of the present paper is to present briefly observations made on the microscopic structure of the liver of the salamander, Ambystoma maculatum, during inanition.


Relative Efficiency Of Roots And Tops Of Plants In Protecting The Soil From Erosion, J. E. Weaver Oct 1935

Relative Efficiency Of Roots And Tops Of Plants In Protecting The Soil From Erosion, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Plant cover, soil and topography are the major factors concerned in the problem of erosion. During the earlier studies, conducted largely by engineers, chief emphasis was placed upon topography. Following extensive work by pedologists, it is now generally conceded that type of soil is an equally important factor. Intensive studies on the effect of plant cover reveal the extremely important role played by plants in holding the soil against the forces of erosion. In this preliminary account of the relative effectiveness of roots as compared to tops in holding the soil in place, the results are based on extensive experiments …


Kentucky Warbler (Vol. 11, No. 4), Kentucky Library Research Collections Oct 1935

Kentucky Warbler (Vol. 11, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


North And South Dakota Horticulture, October 1935, North And South Dakota Horticultural Societies Oct 1935

North And South Dakota Horticulture, October 1935, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 8, Number 10

The Lazula Bunting, O.A. Stevens
N.D. Newsletter, A.F. Yeager
Fall Planting, P.L. Keene
Seed for Shelterbelt, Max Pfaender
Presidents Corner, F.X. Wallner
In Arizona, A.L. Truax
Secretary's Corner
Beekeeping Notes
Garden Clubs, Victor Lundeen


Whole Issue Nebraska Bird Review (Oct 1935) 3(4) Oct 1935

Whole Issue Nebraska Bird Review (Oct 1935) 3(4)

Nebraska Bird Review

Contents

The Weights of 356 Nebraska Specimens of Geese of the Branta canadensis Group, Formerly Contained in the D. H. Talbot Collection. By Myron H. Swenk and Philip A. DuMont ... 135

General Notes ... 142

Editorial Page ... 146

The 1985 Migration Season ... 148

Index ... 152

Advertisement ... 160


Role Of Fire In Pasture Management, J. E. Weaver Oct 1935

Role Of Fire In Pasture Management, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

The practice of burning grass is an old one. It was extensively used by the Indians to attract game animals in early spring and to facilitate hunting. It is also highly probable that a large portion of the prairie was burned periodically during very dry years from natural causes


Response Of The Prairie To The Great Drought Of 1934, J. E. Weaver, L. A. Stoddart, W. M. Noll Oct 1935

Response Of The Prairie To The Great Drought Of 1934, J. E. Weaver, L. A. Stoddart, W. M. Noll

Department of Agronomy and Horticulture: Faculty Publications

Drought during the growing season of 1934 was the greatest ever recorded in the prairie region. It offered an exceptional opportunity to study the response of native plants to extremely adverse water relations. Measurements of the environmental factors of the prairie, in connection with various grassland researches, have now been completed, except for one year, for the seventeenth consecutive growing season. In a summary of findings at the end of twelve years it was stated that although periods of drought are liable to occur at any time, and especially after midsummer, yet only twice during these twelve years was the …


North And South Dakota Horticulture, September 1935, North And South Dakota Horticultural Societies Sep 1935

North And South Dakota Horticulture, September 1935, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 8, Number 9

Chestnut-collared Longspur, O.A. Stevens
N.D. News Letter, A.F. Yeager
Garden Club Notes, P.L. Keene
Celotex, J.A. Munro
President's Corner, F.X. Wallner
The Strange Southwest, A.L. Traux
Beekeeping Notes, J.A. Munro
Secretary's Corner, W.A. Simmons
Walnuts from Seed, Mrs. L.G. Elsinger
The Indian, J.H. Berry


The Utilization Of Nitrogen, Calcium, And Phosphorus By The Growing Chick, C. W. Ackerson, M. J. Blish, F. E. Mussehl Sep 1935

The Utilization Of Nitrogen, Calcium, And Phosphorus By The Growing Chick, C. W. Ackerson, M. J. Blish, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. The nitrogen, calcium, and phosphorus content of 127 newly hatched chicks was determined. 2. Thirty newly hatched chicks were fed accurately known amounts of a good chick mash for 60 days. At the end of the period nitrogen, calcium, phosphorus, and fat were determined for each chick. 3. By means of the comparative slaughter test the retention of nitrogen was found to be 37.8 per cent, calcium 43.4 per cent, and phosphorus 27.3 per cent of the respective elements fed. 4. The average gain in live weight per gram of nitrogen fed was 12.0 grams. 5. The rate of …


Bulletin No. 257 - Factors Promoting Positive Health In School Children, Almeda Perry Brown Aug 1935

Bulletin No. 257 - Factors Promoting Positive Health In School Children, Almeda Perry Brown

UAES Bulletins

It is necessary only to observe groups of rural children to become convinced that too many of them are deprived of their rightful heritage of positive health.

Why children playing together, working together, under conditions which apparently vary but little, should exhibit such wide variation in health conditions, is a question of vital importance to all concerned with the care of children.

It was with the hope of finding some of the causes behind these variations that the present study was initiated. That the problem is complex and intricate was fully realized, and no hope was entertained that its solution …


The Phaenogams Of Western Kentucky University State Teachers College, Gertrude Raymond Aug 1935

The Phaenogams Of Western Kentucky University State Teachers College, Gertrude Raymond

Masters Theses & Specialist Projects

The campus of Western Kentucky State Teachers College was laid out in 1910 by Mr. Henry Wright, landscape architect, with the view of planting ornamental shrubs and woody and herbaceous plants indigenous to Kentucky. In more recent years the gardens on the grounds of the Kentucky Building have been planted with many species of Kentucky plants.

This study was undertaken for the purpose of making a scientific classification of the flowering plants on the campus of Western Kentucky State Teachers College.


A Comparative Pollution Study Of The Domestic Water Supply Of Warren County, Kentucky, Glenn Scott Aug 1935

A Comparative Pollution Study Of The Domestic Water Supply Of Warren County, Kentucky, Glenn Scott

Masters Theses & Specialist Projects

The domestic water supply of Warren County, outside of the city of Bowling Green, is obtained from deep wells and springs. The county is about evenly divided into a southern section of cavernous limestone and a northern section of mixed sandstone and limestone formations.

The wells of the southern cavernous limestone region receive water from unfiltered underground streams and lakes. Most of the wells of the northern region are drilled in sandstone and the water, in a majority of cases, is filtered through porous sandstone and shale.

The purpose of this study was to make a comparative pollution study of …


A Comparative Histological Study Of The Eyes Of Certain Cave Animals, William Owsley Aug 1935

A Comparative Histological Study Of The Eyes Of Certain Cave Animals, William Owsley

Masters Theses & Specialist Projects

As early as 1850 many reports of observations of the blind cave animals were made by both scientific and popular writers. Tellkempf, Agassiz, Forbes and Silliman were some of the earlier scientists who studied the eyes of cave animals. Eigenmann made a histological study of the cave vertebrates of America. In a study of Forbesichthys papilliferus, a semi-blind cave fish, Jennie Miller Orr found important structural modifications in the eyes of this species. Since no comparative histological studies of the eyes of cave animals seem to have been made, it was decided to make such a study with a view …


The Vitamin A Content Of Sour Cream Butter, Sweet Cream Butter, And Margarines, I. L. Hathaway, H. P. Davis Aug 1935

The Vitamin A Content Of Sour Cream Butter, Sweet Cream Butter, And Margarines, I. L. Hathaway, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Nineteen samples of margarine were obtained from Illinois, Ohio and Nebraska. They were analyzed chemically and the vitamin A content of each one was compared with that of either sour-cream or sweet-cream butter. The fat content of the butter samples varied from 80.2 to 81.5 per cent, while the fat content of the margarine samples varied from 78 .3 to 89.2 per cent. From the results it was evident that these samples of margarine were very poor sources of vitamin A when compared with butter. One of the margarine samples caused an average gain of 10 grams per rat and …


North And South Dakota Horticulture, August 1935, North And South Dakota Horticultural Societies Aug 1935

North And South Dakota Horticulture, August 1935, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 8, Number 8

The Yellow-Breasted Chat, O.A. Stevens
N.D. News Letter, Dr. A.F. Yeager
Perennial Plants from Seed, P.L. Keene
Indian Vegetables, G.F. Will
President's Corner, F.X. Wallner
Beekeeping Notes, J.A. Munro
Secretary's Corner, W.A. Simmons
Climatic Influences on Plants, W.H. Over
Dr. Hansen Honored


Studies In The Development Of Tissue In The Stem And Leaf Of Pinus Edulis, Engelman, Eleanor Bartoszak Aug 1935

Studies In The Development Of Tissue In The Stem And Leaf Of Pinus Edulis, Engelman, Eleanor Bartoszak

Bachelors’ Theses

Pinus edulis, Engelman commonly known as the two-leaved "Nut Pine", belongs to the genus Pinus of the tribe Abietineae which in turn is a member of the Pinnaceae family of the order Coniferales. The Coniferales constitute three-fourths of the present gymnosperms which comprise forty genera and approximately 350 species. The dominant conifers are the twenty-nine genera and approximately 245 species included
in the family Pinnaceae. In this family are found four tribes, Taxodineae, Cupressineae, Araucarineae, and Abietineae. This latter form includes nine genera and about 129 species.. The genera are Cedrus, found …


A Survey Of The Woody Plants Of A Selected Area In Osage Township Allen County Kansas, French Booher Aug 1935

A Survey Of The Woody Plants Of A Selected Area In Osage Township Allen County Kansas, French Booher

Electronic Theses & Dissertations

This paper contains the results of studies of the woody plants of a selected area in Osage township, Allen county, Kansas, during the spring, summer, and fall of 1934 and spring of 1935. The area is two miles long and approximately three hundred yards wide, located in the northeastern part of Allen county about three miles east of Mildred, Kansas. In making this survey the writer has attempted to identify and classify the woody plants, namely the trees, shrubs, and vines.


Some Monogenetic Trematodes From The Galapagos Islands And The Neighboring Pacific, Frank Grose Meserve Aug 1935

Some Monogenetic Trematodes From The Galapagos Islands And The Neighboring Pacific, Frank Grose Meserve

School of Biological Sciences: Dissertations, Theses, and Student Research

Introduction

Trematodes are parasitic, unsegmented, flattened (rarely cylindrical) worms. They have ventral, anterior, posterior or median attachment organs. The sense organs are poorly developed. The mouth is terminal or ventral and subterminal. The intestine is usually forked with or without lateral branches. The animals, with few exceptions, are hermaphroditic. The ovary is usually single. They have one, two, or more testes. The development is direct with only one host in the ectoparasitic Monogenea and indirect in the Digenea which have two or more hosts. The digenetic trematodes usually parasitize vertebrates which serve as their primary hosts and invertebrates (Mollusca) which …


Contradictory Actions Of Caffeine, Coramine, And Metrazal, Arnold H. Maloney Jul 1935

Contradictory Actions Of Caffeine, Coramine, And Metrazal, Arnold H. Maloney

College of Medicine Faculty Publications

No abstract provided.


Kentucky Warbler (Vol. 11, No. 3), Kentucky Library Research Collections Jul 1935

Kentucky Warbler (Vol. 11, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Sales Value And Assessed Value Of Nebraska Farm Land: 1921-1934, Eleanor H. Hinman Jul 1935

Sales Value And Assessed Value Of Nebraska Farm Land: 1921-1934, Eleanor H. Hinman

Nebraska Agricultural Experiment Station: Historical Research Bulletins

How to secure just and equitable estimates of the value of farm land as a basis for taxation has always been a vexatious problem. The existing assessment law in Nebraska went into effect April 1, 1921. The present study attempts to show how the assessed valuations of farm real estate made under that law compare with the actual sales value of the farms sold during the 13 years ending March 31, 1934. The data used in this study include records of 35,753 tracts of farm land in 93 Nebraska counties sold during the 13 years ending March 31, 1934.


North And South Dakota Horticulture, July 1935, North And South Dakota Horticultural Societies Jul 1935

North And South Dakota Horticulture, July 1935, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 8, Number 7

The Lark Sparrow, O.A. Stevens
N.D. News Letter, Dr. A.F. Yeager
Cut Flower Arrangement, P.L. Keene
President's Corner, F.X. Wallner
South Dakota Notes, R.W. Vance
Secretary's Corner, W.A. Simmons
Blue Jay Squakie, Mrs. L.W. Kinyon
Great Plains Hort. Tour, H.N. Dybvig
Lead Flower Show, E.A. Gates
The Beauty of the Black Hills, Arthur Morcom


A Study Of Farm Families And Their Standards Of Living In Selected Districts Of Nebraska 1931-1933, Margaret Fedde, Ruth Lindquist Jul 1935

A Study Of Farm Families And Their Standards Of Living In Selected Districts Of Nebraska 1931-1933, Margaret Fedde, Ruth Lindquist

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study of farm families in selected districts of Nebraska was undertaken in order to obtain information regarding the total money value of family living and the proportion of the total used for each of the principal groups of goods. A further purpose was to measure the adequacy of the living provided. The study was begun in January, 1931, and continued through the year 1933. The districts selected included Cass and Fillmore counties throughout the three-year period, and to these Buffalo county was added at the beginning of 1932.


Whole Issue Nebraska Bird Review (July 1935) 3(3) Jul 1935

Whole Issue Nebraska Bird Review (July 1935) 3(3)

Nebraska Bird Review

Contents

Some Nebraska Experiences ·with the Northern Purple Martin. By Mrs. George W. Trine ... 79

General Notes ... 82

Editorial Page ... 86

The 1935 Migration Season ... 87

Here and There with the N.O.U. Members ... 114

A History of Nebraska Ornithology. III. Period of the Explorations of the Early Nineteenth Century (1804-1854). The Lewis and Clark and Zebulon M. Pike Expeditions ... 115

Minutes of the Thirty-sixth Annual Meeting ... 125

Report on the Thirty-third Annual Field Day ... 128

Membership Roll of the Nebraska Ornithologists' Union ... 129

Two New Bird Books ...132