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 249781 - 249810 of 256565

Full-Text Articles in Entire DC Network

Activated Carbon From Grapefruit Waste., Delbert Van Fletcher 1918-2005 Jan 1941

Activated Carbon From Grapefruit Waste., Delbert Van Fletcher 1918-2005

Electronic Theses and Dissertations

No abstract provided.


Phylogenetic Studies On The Blood-Inhabiting Trematodes, Harold Frederick Dieckmann Jan 1941

Phylogenetic Studies On The Blood-Inhabiting Trematodes, Harold Frederick Dieckmann

University of the Pacific Theses and Dissertations

Trematodes belonging to the blood-inhabiting group have long attracted the attention of parasitologists and medical men, especially those trematodos belonging to the family Schistosomidae because throw widely distributed species, Schistosoma Japonicum, S. haematobium, and S. mansoni, are parasitic in man, and in endemic regions are the cause of important human diseases. These schistosomes, with a few exception, have undergone more detailed research than any other trematodes.

Since the discovery of the first digenetic trematode exhibiting sexual dimorphism by Rudolphi (1819), which was named Distoma canaliculatum, and the descriptions of the other blood flukes up until the present time, a vast …


Trees And Shrubs Of Kings Canyon National Park, Kenneth M. Stocking Jan 1941

Trees And Shrubs Of Kings Canyon National Park, Kenneth M. Stocking

University of the Pacific Theses and Dissertations

In 1935 I first visited the Kings Canyon area. Since then I have spent many hours wandering through the woods and over the mountains in the area around the old General Grant National Park and the country which is now included in the Kings Canyon National Park. To my knowledge, no complete flora has been made for this vicinity. I consider the following pages to be the beginning of a fascinating work. It is the beginning because this paper includes only plants with woody stems.


Planning National N. F. A. Day Program In Honor Of The Life And Work Of Booker T. Washington, W. T. Johnson Jan 1941

Planning National N. F. A. Day Program In Honor Of The Life And Work Of Booker T. Washington, W. T. Johnson

Documents

The planning of the national N. F. A. Day program to honor Booker T. Washington.


Envelope Labeled Nfa State Thanksgiving Pictures, North Carolina Agricultural & Technical State University Jan 1941

Envelope Labeled Nfa State Thanksgiving Pictures, North Carolina Agricultural & Technical State University

Documents

Envelope labeled 'NFA State Thanksgiving Pictures' and 'Natl Couns. Pictures.'


The Role Of Estrogen In Mammary Gland Development And In Lactation., Sheppard Matthew Walker Jan 1941

The Role Of Estrogen In Mammary Gland Development And In Lactation., Sheppard Matthew Walker

LSU Historical Dissertations and Theses

No abstract provided.


A Quantitative Assay Of Five Hormones Of The Pituitary Of Rana Catesbeiana., Ellen Corinne Keaty Jan 1941

A Quantitative Assay Of Five Hormones Of The Pituitary Of Rana Catesbeiana., Ellen Corinne Keaty

LSU Historical Dissertations and Theses

No abstract provided.


Constitution And Bylaws Of North Carolina Association Of Nfa, New Farmers Of America Jan 1941

Constitution And Bylaws Of North Carolina Association Of Nfa, New Farmers Of America

Documents

Constitution and bylaws of North Carolina association of New Farmers of America.


North And South Dakota Horticulture, December 1940, North And South Dakota State Horticultural Societies Dec 1940

North And South Dakota Horticulture, December 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 12

The American Crow, O.A. Stevens
Newslants, H.A. Graves
President's Corner, H.E. Beebe
Manitoba News Letter, W.R. Leslie
Winter Nearer, W.E.H. Porter
Questions & Answers, L.L. Davis
Secretary's Corner, W.A. Simmons
Fruit & Vegetable Notes, F.X. Wallner
1940 Nursery Inspections, E.H. Everson
Book Review, Mrs. F. Briley
Index to Vol. XIII


Bulletin No. 294 - Research Aids Utah Agriculture: Biennial Report Utah Agriculture Experiment Station 1938 - 1940, R. H. Walker Dec 1940

Bulletin No. 294 - Research Aids Utah Agriculture: Biennial Report Utah Agriculture Experiment Station 1938 - 1940, R. H. Walker

UAES Bulletins

The foundation of progress in agriculture as in any other industry is research. Research has resulted in knowledge now daily applied in soil treatment, in irrigation practices, in dealing with insect pests, in breeding new varieties of plants, in animal improvement, in better farm practices, and in better land-use planning. Research undertaken by the Utah Agricultural Experiment Station has been outlined to solve specific problems facing Utah agriculture, among them the problems of irrigation, dry farming, range management and animal production. The prosperity of the state is dependent upon the success of these agricultural enterprises. Agricultural research should not, therefore, …


Bulletin No. 293 - Velvon: A New Smooth-Awned Barley, R. W. Woodward, D. C. Tingey Nov 1940

Bulletin No. 293 - Velvon: A New Smooth-Awned Barley, R. W. Woodward, D. C. Tingey

UAES Bulletins

Velvon, a new barley variety with smooth awns, with relatively stiff straw, and with a high degree of resistance to covered smut was developed at the Utah Agricultural Experiment Station through the cooperative efforts of the Station and the Division of Cereal Crops and Diseases, Bureau of Plant Industry, U. S. Department of Agriculture. This new variety resulted as a hybrid strain from a cross made in 1930 for the purpose of improving straw strength and the texture of awns.


North And South Dakota Horticulture, November 1940, North And South Dakota State Horticultural Societies Nov 1940

North And South Dakota Horticulture, November 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 11

The Woodcock, O.A. Stevens
Newslants, H.A. Graves
President's Corner, H.E Beebe
Pre-war Denmark, S.H. Bober
Frost Comes, W.E.H. Porter
Letter from Dr. Yeager
Fruit & Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Book Review, Mrs. F. Briley
Manitoba News Letter, W.R. Leslie
Gov. Bushfield, C.S. Weller


Tillage Methods In Grasshopper Control, Gerald B. Spawn Nov 1940

Tillage Methods In Grasshopper Control, Gerald B. Spawn

Agricultural Experiment Station Entomology Pamphlets (1940-1952)

During the past 88 years of agricultural history in South Dakota, 38 have been years in which grasshoppers were present in above normal numbers. During 17 of these 38 years grasshoppers have been a serious pest of agricultural crops in South Dakota and neighboring states. Many millions of dollars worth of cereal, forage and truck crops during each of these 17 years were destroyed by hungry hordes of the insects. The impetus given soil conservation work and farm woodlot and shelterbelt plantings of trees in the past few years has brought about the realization that grasshoppers are far more than …


Bulletin No. 292 - Effects Of Feeding Ewe Lambs During Their First Winter, Alma C. Esplin, Milton A. Madsen, Ralph W. Phillips Oct 1940

Bulletin No. 292 - Effects Of Feeding Ewe Lambs During Their First Winter, Alma C. Esplin, Milton A. Madsen, Ralph W. Phillips

UAES Bulletins

It has been observed that many ewes in Utah are somewhat under size when eighteen months old, the usual age for first breeding. It is a common experience for these ewes to produce much smaller lamb and wool crops than the older ewes.


Kentucky Warbler (Vol. 16, No. 4), Kentucky Library Research Collections Oct 1940

Kentucky Warbler (Vol. 16, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


North And South Dakota Horticulture, October 1940, North And South Dakota State Horticultural Societies Oct 1940

North And South Dakota Horticulture, October 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 10

The Killdeer, O.A. Stevens
Newslants, Rev. J. Ralph McNeil
Nursery Inspection, E.H. Everson
Gov. Bushfield, nature lover, C.S. Weller
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
Questions & Answers, L.L Davis
Book Reviews, Mrs. F. Briley
Secretary's Corner, W.A. Simmons
Fruit & Vegetable Notes, F.X Wallner
Summer's Waning, W.E.H. Porter


North And South Dakota Horticulture, September 1940, North And South Dakota State Horticultural Societies Sep 1940

North And South Dakota Horticulture, September 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 9

The Solitary Sandpiper, O.A. Stevens
Newslants, H.A. Graves
Tree Enemies, E.H. Everson
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
Summer's Beauty, W.E.H. Porter
Book Review, Mrs. F. Briley
Hort'l Travelogue, A.L. Truax
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L. Davis
Fruit & Vegetable Notes, F.X. Wallner
The Garden, H.F. Baker


Cooling, Storage, And Transporation Of Milk And Cream, P. A. Downs, F. D. Yung Sep 1940

Cooling, Storage, And Transporation Of Milk And Cream, P. A. Downs, F. D. Yung

Nebraska Agricultural Experiment Station: Historical Circulars

The care given milk and milk products should be such that they will be relished by young and old alike. Greater use of milk can be encouraged by serving fresh milk cold. Cooling of milk also insures a fine product several hours after production. This is important not only for milk that is to be used, but for milk or cream that is to be sold.


Birds Of The Guadalupe Mountain Region Of Western Texas, Thomas D. Burleigh, George H. Lowery Jr. Aug 1940

Birds Of The Guadalupe Mountain Region Of Western Texas, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Acer Nigrum Michx.F., H. J. P. Aug 1940

Acer Nigrum Michx.F., H. J. P.

Specimens by Name

No abstract provided.


The Utilization Of Food Elements By Growing Chicks. Ix. The Nitrogen Of Urea, C. W. Ackerson, W. E. Ham, F. E. Mussehl Aug 1940

The Utilization Of Food Elements By Growing Chicks. Ix. The Nitrogen Of Urea, C. W. Ackerson, W. E. Ham, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. The effect of replacing one-third of the concentrate of a ration for growing chicks with a mixture of starch and urea that contained an amount of nitrogen equal to that contained in the concentrate withdrawn from the ration was studied with two lots of chicks. 2. All chicks of both lots consumed equal amounts of nitrogen during the experiment. 3. Conclusions were based on increases in body weight and content of nitrogen, calcium and phosphorus at slaughter.


North And South Dakota Horticulture, August 1940, North And South Dakota State Horticultural Societies Aug 1940

North And South Dakota Horticulture, August 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 8

The Greater Yellow-Legs, O.A. Stevens
Newslants, H.A. Graves
Manitoba News Letter, W.R. Leslie
New England Notes, Dr. A.F. Yeager
August, W.E.H. Porter
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L Davis
Book Reviews, Mrs. F. Briley & Simmons
Success With Trees, E.H. Everson
Fruit & Vegetable Notes, F.X. Wallner
Horticulture Travelogue, A.L. Truax


The Effect Of Clipping And Weed Competition Upon The Spread Of Pasture Grass Seedlings, Cecil L. Hase Jul 1940

The Effect Of Clipping And Weed Competition Upon The Spread Of Pasture Grass Seedlings, Cecil L. Hase

Master's Theses or Doctor of Nursing Practice

The drought of the last seven years with its disastrous dust storms has damaged vast areas of the native prairie as well as much of the cultivated land. Deficient rainfall has caused crop failures over large areas, leaving the fields without a protective covering. Due to these conditions, wind erosion started the dry, loose soil to drifting. Large amounts of the soil settled on the grassland and destroyed much of the native plant cover. Where t e native vegetation was weakened or destroyed, the soil was invaded by such weedy annuals as lambsquarter (Chenopodium sp. ) , Russian thistle (Salsola …


An Analysis Of Seed Production Of Native Kansas Grasses During The Drought Of 1939, Lester R. Branson Jul 1940

An Analysis Of Seed Production Of Native Kansas Grasses During The Drought Of 1939, Lester R. Branson

Master's Theses or Doctor of Nursing Practice

The present interest in the control of soil erosion and the stabilization of agriculture has initiated a great amount of research to find suitable grasses and methods for restoring grass production. The results of these investigations have shown that the native climax grasses are best suited for reseeding in arid and semi-arid regions


The Life History And Habits Of Buffalo Grass, John J. Webb Jul 1940

The Life History And Habits Of Buffalo Grass, John J. Webb

Master's Theses or Doctor of Nursing Practice

Buffalo grass (Buchloe dactyloides) is a dioecious, stoloniferous perennial which, with Blue Grama grass (Bouteloua gracilis), forms the short grass faciation of the Great Plains. Its range extends from Saskatchewan to Mexico in the plains area. It is exceedingly valuable as forage, both during the growing season and winter, since cured grass is relished by livestock. Its stoloniferous habits make it an aggressive plant, and give it great soil-biding properties. This species of grass has vast possibilities in revegetation practices. A study of its life-history should be of benefit to conservationists as well as to agrostologists and taxonomists. There is …


Mammals Of The Guadalupe Mountains Of Western Texas, William B. Davis Jul 1940

Mammals Of The Guadalupe Mountains Of Western Texas, William B. Davis

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Kentucky Warbler (Vol. 16, No. 3), Kentucky Library Research Collections Jul 1940

Kentucky Warbler (Vol. 16, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


North And South Dakota Horticulture, July 1940, North And South Dakota State Horticultural Societies Jul 1940

North And South Dakota Horticulture, July 1940, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 13, Number 7

The Avocet, O.A. Stevens
Newslants, H.A. Graves
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
Questions and Answers, L.L. Davis
Spring in New Hampshire, Dr. A.F. Yeager
July, W.E.H. Porter
Dr. G.F. Will
Book Reviews, Mrs. F. Briley
Secretary's Corner, W.A. Simmons
Fruit & Vegetable Notes, F.X. Wallner
South Dakota Trees, E.H. Everson


Nebraska Bird Review (July-December 1940) 8(2), Whole Issue Jul 1940

Nebraska Bird Review (July-December 1940) 8(2), Whole Issue

Nebraska Bird Review

CONTENTS

The Northern Purple Martin as a Neighbor. By Mrs. George W. Trine ........................................................ 45

Birds of a Surviving Area of Original Prairie Land in Eastern Nebraska. By Don B. Whelan .................................................... 50

Some 1939 Bird Observations Made at Red Cloud, Webster County. By Charles S. Ludlow ................................................................ 55

Some Notes on the Summering Birds of Western Nebraska. By Mr. and Mrs. Earl W. Glandon ............................................ 61

Distribution and Migration of the Dowitcher in Nebraska. By Myron H. Swenk .................................................................... 63

Cooperative Migration List for the Spring of 1940 ........................ 75

General Notes ................................................ ..................................... 83

Minutes of the Forty-first …


Notes On The Life History Of Uta Stansburiana Baird And Girard, Ports Bretney Jul 1940

Notes On The Life History Of Uta Stansburiana Baird And Girard, Ports Bretney

Biology ETDs

The writer has attempted to bring together the information concerning the life history of Uta Stansburiana and to add to it by field observations of the form which occurs around Albuquerque, New Mexico. No attempt was made to experiment in the laboratory in connection with the factors controlling the activities.