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Articles 249181 - 249210 of 255952

Full-Text Articles in Life Sciences

Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science Apr 1940

Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.


Front Matter Apr 1940

Front Matter

Journal of the Minnesota Academy of Science

No abstract provided.


The Effect Of Environmental Factors Upon The Growth Rates Of Minnesota Fishes, Samuel Eddy, Kenneth D. Carlander Apr 1940

The Effect Of Environmental Factors Upon The Growth Rates Of Minnesota Fishes, Samuel Eddy, Kenneth D. Carlander

Journal of the Minnesota Academy of Science

No abstract provided.


Minnesota Lake Surveys And Fish Management, Samuel Eddy Apr 1940

Minnesota Lake Surveys And Fish Management, Samuel Eddy

Journal of the Minnesota Academy of Science

No abstract provided.


Experimental Simulation Of Winter Anaerobiosis, Raymond L. Lindeman Apr 1940

Experimental Simulation Of Winter Anaerobiosis, Raymond L. Lindeman

Journal of the Minnesota Academy of Science

No abstract provided.


Regional Plankton Studies In Minnesota, Charles B. Reif Apr 1940

Regional Plankton Studies In Minnesota, Charles B. Reif

Journal of the Minnesota Academy of Science

No abstract provided.


When Are Pine Cones Ripe?, Paul O. Rudolf Apr 1940

When Are Pine Cones Ripe?, Paul O. Rudolf

Journal of the Minnesota Academy of Science

No abstract provided.


Deer Inventory Studies In Minnesota, Gordon Fredine Apr 1940

Deer Inventory Studies In Minnesota, Gordon Fredine

Journal of the Minnesota Academy of Science

No abstract provided.


Further Studies On Prosthogonimus Macrorchis, Oviduct Fluke Of Poultry, With Special Reference To The Effect On Egg Production In The Ring-Necked Pheasant, Ralph W. Macy Apr 1940

Further Studies On Prosthogonimus Macrorchis, Oviduct Fluke Of Poultry, With Special Reference To The Effect On Egg Production In The Ring-Necked Pheasant, Ralph W. Macy

Journal of the Minnesota Academy of Science

No abstract provided.


Longevity Of Red Pine Seed, Eugene I. Roe Apr 1940

Longevity Of Red Pine Seed, Eugene I. Roe

Journal of the Minnesota Academy of Science

No abstract provided.


Abstract Papers Apr 1940

Abstract Papers

Journal of the Minnesota Academy of Science

No abstract provided.


Back Matter Apr 1940

Back Matter

Journal of the Minnesota Academy of Science

No abstract provided.


Kentucky Warbler (Vol. 16, No. 2), Kentucky Library Research Collections Apr 1940

Kentucky Warbler (Vol. 16, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Control Of Stored Grain Pests In Nebraska, M. H. Swenk, D. B. Whelan Apr 1940

Control Of Stored Grain Pests In Nebraska, M. H. Swenk, D. B. Whelan

Nebraska Agricultural Experiment Station: Historical Circulars

At the close of 1939 about twice the amount of wheat was in storage in Nebraska as compared to the close of 1938. Frequently a new crop of grain goes into storage before the preceding older grain leaves the farm, and, due to inadequate storage space, the crops are not kept separated, thus promoting an early infestation of the new grain from the older grain that has become infested. Under such conditions the damage by stored grain pests becomes a matter of unusual importance.


North And South Dakota Horticulture, April 1940, North And South Dakota State Horticultural Societies Apr 1940

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

North and South Dakota Horticulture

Volume 13, Number 4

The Sandhill Crane, O.A. Stevens
Newslants, H.A. Graves
Selling S.D. Trees, E.H. Everson
Manitoba News Letter, W.R. Leslie
Secretary's Corner, W.A. Simmons
April, W.E.H. Porter
President's Corner, H.E. Beebe
Fruit and Vegetable Notes, F.X. Wallner
Lilies, C.M. Clarke
Book Review, Mrs. F. Briley
Grapes in a Prairie Garden, C.A. Barr


Block And Bridle Annual 1940 Apr 1940

Block And Bridle Annual 1940

Block and Bridle Annual (1933–2021)

The objectives of the Block and Bridle Club of Nebraska may be stated in a few words. They are, to foster an interest in the livestock industry, and to advertise that industry through favorable publicity; to prepare outstanding students of today for leadership tomorrow; to provide a means by which to congenial group of young men may meet and benefit each from the association of the others; and to participate in activities of the Campus so that the entire student body may profit not only in money but in useful things accomplished.


The Morphology And Histology Of The Virginia Oyster, Ostrea Virginica, Lister, Lewis Charles Goldstein Apr 1940

The Morphology And Histology Of The Virginia Oyster, Ostrea Virginica, Lister, Lewis Charles Goldstein

Master's Theses

The oyster has been known and used commercially since before the Roman and Greek civilizations, and reports of investigations pertaining to it can be found dating back almost to that period. Because of the commercial value of the oyster, most of the study of' the animal has dealt with its economic importance. Definite information concern­ ing the morphology and microscopic . structure of this Mollusc, therefore, is scarce. To be sure, there is an abundance of miscellaneous literature, but no systematic microscopic study has been reported. T. C . Nelson (1938) states, "A critical survey of the abundant and scattered …


Noteworthy Plants From The Duluth Area, Olga Lakela Apr 1940

Noteworthy Plants From The Duluth Area, Olga Lakela

Journal of the Minnesota Academy of Science

No abstract provided.


Deterioration Of Midwestern Ranges, J. E. Weaver, F. W. Albertson Apr 1940

Deterioration Of Midwestern Ranges, J. E. Weaver, F. W. Albertson

Department of Agronomy and Horticulture: Faculty Publications

The native grasses of the mixed prairie and short-grass plains disclimax have been subjected for a long period of years to extreme drought, much overstocking, and severe damage from dust. Behavior of the vegetation during the dry year of 1933, the extreme drought of 1934, and the terrible dust storms and intermittent periods of desiccation during subsequent years, has been continuously observed (Weaver and Albertson, '36). Previous studies in this area furnished a back- ground which enabled one to compare present conditions with those of the pre-drought period (Weaver, '24; Clements and Weaver, '24; Albertson, '37). A large series of …


An Inquiry Into The Influence Of Environment On The Incidence Of Poultry Diseases, L. Van Es, J. F. Olney Mar 1940

An Inquiry Into The Influence Of Environment On The Incidence Of Poultry Diseases, L. Van Es, J. F. Olney

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The principal purpose of the investigation reported here was to evaluate, if possible, hygienic measures, and in addition to gather whatever information might become available pertaining to the relation of certain disorders to a given poultry population after its exposure to their specific etiologic factors. The experiments were conducted on a piece of ground upon which poultry had not been maintained for many years, if ever.


Bulletin No. 291 - Range Resources Of Rich County, Utah, L. A. Stoddart Mar 1940

Bulletin No. 291 - Range Resources Of Rich County, Utah, L. A. Stoddart

UAES Bulletins

In 1936 the Utah Agricultural Experiment Station organized project 179 entitled "A study of agricultural resources of Utah and their utilization." The project was divided into four sub-projects, A dealing with agricultural economics, B dealing with soil resources, C dealing with irrigational water resources, and D dealing with range resources.

Sub-project D, entitled "Range resources and condition of vegetation cover," was begun in 1936 with a survey of Duchesne and Uintah Counties, and the findings were published as Utah Station Bulletin No. 283, "Range conditions in Uinta Basin, Utah." The field season of 1937 was devoted to Wasatch County, and …


Spraying Tree Fruits, C. C. Wiggans, E. H. Hoppert Mar 1940

Spraying Tree Fruits, C. C. Wiggans, E. H. Hoppert

Nebraska Agricultural Experiment Station: Historical Circulars

The production of sound, clean fruit is unquestionably one of the major problems facing the modern fruit grower. Culture may be neglected and pruning delayed for a time but the omission of sprays for even a single season demonstrates their absolute necessity. This applies equally to the commercial grower and to the farmer or gardener who has only a few trees.


North And South Dakota Horticulture, March 1940, North And South Dakota State Horticultural Societies Mar 1940

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

North and South Dakota Horticulture

Volume 13, Number 3

The Barn Owl, O.A. Stevens
Newslants, H.A. Graves
Trees for South Dakota, E.H. Everson
President's Corner, H.E. Beebe
Manitoba News Letter, W.R. Leslie
Secretary's Corner, W.A. Simmons
March, W.E.H. Porter
Fruit and Vegetables Notes, F.X. Waller [sic]
Book Review, Mrs. F. Briley
Questions and Answers, Prof. L.L. Davis
Premium List


Vegetative Composition And Grazing Capacity Of A Typical Area Of Nebraska Sandhill Range Land, A. L. Frolik, W. O. Shepherd Mar 1940

Vegetative Composition And Grazing Capacity Of A Typical Area Of Nebraska Sandhill Range Land, A. L. Frolik, W. O. Shepherd

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The sandhill area of Nebraska occupies approximately 20,000 square miles of the central portion of the state. Being unadapted to cultivation, the land is for the most part still covered with native vegetation. It is utilized primarily for the production of livestock, chiefly cattle. During the period 1931 to 1938 the sandhills carried annually an average of 1,041,000 cattle, which amounted to 31 per cent of the total number in the state. The management practices used in the Nebraska sandhills have gained national recognition as a good example of range conservation in the United States. The purpose of this study …


North And South Dakota Horticulture, February 1940, North And South Dakota State Horticultural Societies Feb 1940

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

North and South Dakota Horticulture

Volume 13, Number 2

The Scarlet Tanager, O.A. Stevens
Newslants, H.A. Graves
N.D. Premium List
President's Corner, H.E. Beebe
Manitoba News Letter, W.R. Leslie
Secretary's Corner, W.A. Simmons
Tardy Winter, W.E.H. Porter
Fruit and Vegetable Notes, F.X. Wallner
Beekeeping Notes, J.A. Munro
Questions and Answers, L.L. Davis
Book Reviews, Mrs. F. Briley


A Study Of Subspecific Variation In The Yellow Pocket-Gopher (Geomys Lutescens) In Nebraska, And Of The Geographical And Ecological Distribution Of The Variants, Myron H. Swenk Feb 1940

A Study Of Subspecific Variation In The Yellow Pocket-Gopher (Geomys Lutescens) In Nebraska, And Of The Geographical And Ecological Distribution Of The Variants, Myron H. Swenk

University of Nebraska State Museum: Mammalogy Papers

The Yellow Pocket-Gopher (Geomys lutescens) was described by Merriam (14) in 1890, as a paler and smaller subspecies of Geomys bursarius, based on "numerous specimens received from the Sand Hills of western Nebraska", and especially upon an adult Cjl type specimen (No. 23595, U. S. N. M.) collected in the sandhills along Birdwood Creek, Lincoln County, Nebraska, May 27, 1889, by A. B. Baker. Although even as late as 1931 Scheffer (17) classified Geomys lutescens as a subspecies of G. bursarius, it is without doubt specifically distinct from G. bursarius. In all of its variations …


A Comparative Study Of Textbooks In General Agriculture Used In Senior High Schools, Lowell O. Yasmer Jan 1940

A Comparative Study Of Textbooks In General Agriculture Used In Senior High Schools, Lowell O. Yasmer

Master's Theses or Doctor of Nursing Practice

The specific problem of the thesis is, "A Comparative Study of Certain Textbooks in General Agriculture Used in Senior High Schools.” It is limited in that it doe s not cover all textbooks in the field of general agriculture , but only those which made a certain score or rating through the use of a device formulated for this purpose, nor was it the problem to discover which is the best textbook in agriculture but rather to make a comparative analysis of the textbooks selected. The books selected were compare d critically with each other in an effort to determine …


Bulletin No. 3: A Plant Handbook, Lists Of Plants For Specific Landscsape Uses, Harriet B. Creighton, Priscilla Pasco Jan 1940

Bulletin No. 3: A Plant Handbook, Lists Of Plants For Specific Landscsape Uses, Harriet B. Creighton, Priscilla Pasco

Bulletins

No abstract provided.


River Terraces In The Carrollton Area, Dallas County, Texas, L. Gray Pattillo Jr. Jan 1940

River Terraces In The Carrollton Area, Dallas County, Texas, L. Gray Pattillo Jr.

Field and Laboratory

The Carrollton area is located in the northwestern part of Dallas County in the black prairie region of the Gulf Coast province of Texas. The area represented by the map covering approximately fifty square miles, is bounded on the north by the Dallas-Denton County line, on the south by the Joe Field road, on the east by meridian 96°45', and on the west by the 97th meridian.


The First Five Years Of The Regional Agricultural Council For The Southern Great Plains States, Office Of Land Use Coordination Jan 1940

The First Five Years Of The Regional Agricultural Council For The Southern Great Plains States, Office Of Land Use Coordination

Special Collections

From the document:

At the October, 1940, meeting of the Southern Great Plains Regional Agricultural Council, the retiring chairmnn, F. A. Anderson, asked the Coordinator to prepare a history of the Council since its inception in 1935. This history accordingly constitutes a review of the activities of the Council during the five years from the first meeting in Pueblo, Colorado, December 12-13, 1935, through the 28th meeting, and the last one of the 1940 calendar year, held in Waco, Texas, October 17-18, 1940.