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Articles 32431 - 32460 of 32961

Full-Text Articles in Life Sciences

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 …


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.


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


A Key To The Nebraska Cutworms And Armyworms That Attack Corn, Don B. Whelan Jun 1935

A Key To The Nebraska Cutworms And Armyworms That Attack Corn, Don B. Whelan

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The following key to the Nebraska cutworms and armyworms injurious to corn is based upon structural characters supplemented in some instances by color. Not all of the species in this key have been found in Nebraska; some are included because they are to be found in near-by states to such an extent that they probably are present in this state.


Whole Issue Nebraska Bird Review (April 1935) 3(2) Apr 1935

Whole Issue Nebraska Bird Review (April 1935) 3(2)

Nebraska Bird Review

Contents

The Songs of the Western Meadowlark. By Misses Jessie M. and Mary A. Towne. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 51

The Case Against the Bronzed Grackle. By Mrs. George W. Trine. . . . . . . . . . . .. . . . . .. 54

General Notes......... . . . . . . . . . . . . . . . . . . . . . . . . . . …


Determining The Sex Of Day Old Chicks, H. E. Alder Mar 1935

Determining The Sex Of Day Old Chicks, H. E. Alder

Nebraska Agricultural Experiment Station: Historical Circulars

More than 2,000 years ago people were interested in determining the sex of the embryo in hatching eggs and the sex of day-old chicks. No method of determining the sex of day-old chicks (except of course in sex-linked chicks) was of the slightest value until the Japanese method was discovered and developed. About 1925 Japanese scientists discovered the presence of a rudimentary copulatory organ located on the ventral rim of the cloaca which was present in all day-old males and only a few day-old females.


Annual Fodder And Silage Crops For Nebraska, W. E. Lyness, T. A. Kiesselbach Mar 1935

Annual Fodder And Silage Crops For Nebraska, W. E. Lyness, T. A. Kiesselbach

Nebraska Agricultural Experiment Station: Historical Circulars

The present shortage in the seed supply of all standard varieties of annual forage crops has created a special demand for information concerning their relative productivity and the possible use of substitute crops. This circular reports the yields secured from such crops at the Experiment Station, in an effort to help farmers reach a decision as to which crops should be grown this year for roughage, and which ones especially should have their seed supply increased for use in future years. Feed value and production costs as well as yields should be taken into consideration by the grower.


Relation Of Root Distribution To Organic Matter In Prairie Soil, J. E. Weaver, V. H. Hougen, M. D. Weldon Mar 1935

Relation Of Root Distribution To Organic Matter In Prairie Soil, J. E. Weaver, V. H. Hougen, M. D. Weldon

Department of Agronomy and Horticulture: Faculty Publications

Although the root distribution of the chief grasses and forbs of tall-grass prairie has been known for 15 years (18), no studies on the relation of root distribution to the organic matter in the soil have been made. In fact, so far as the writers are aware, few studies of this type have been undertaken in America. SPRAGUE (15), working in New Jersey, has attempted to correlate root occupation of the several soil layers with their specific soil properties. The grasses, chiefly Kentucky bluegrass and Colonial bent grass, were grown on a formerly cultivated soil of the gray-brown forest soil …


Annual Report: 1935 Jan 1935

Annual Report: 1935

Cherry County (Nebraska) Extension: Historical Documents

Throughout the year ending on November 16, 1935 extension work in Cherry County was administered cooperatively and sponsored by the following groups; namely, Board of County Commissioners; a County Extension Committee of seven members; a District AAA Wheat Control Association with headquarters at Ainsworth; a County AAA Corn-Hog Control Association, the Nebraska Resettlement Administration; and a tentative Farm Bureau organization.

Slightly less than one-half of the agents time was devoted to developing the AAA programs for the year. Somewhat less than one-fourth of his time was devoted to Emergency Drouth relief activities including the close of the cattle buying. The …


Muslin Wall Hanging Presentation Materials From The 1930s, Louis Leviticus, William Splinter Jan 1935

Muslin Wall Hanging Presentation Materials From The 1930s, Louis Leviticus, William Splinter

University of Nebraska-Lincoln Extension: Historical Materials

Earlier this summer someone looking for oil rags at the Lester Larson Tractor Museum remembered there was a drawer of them in an old file cabinet. When unfolding one, and then many more, they discovered that the fabric pieces were actually hand-illustrated, fabric panels which had once been used in Extension presentations.

Much as speakers might use a PowerPoint presentation today, these are thought to have been hung at meeting sites and referenced during the course of the meeting/class.

Individuals from the Tractor Museum carefully photographed each of the panels and created a spreadsheet of information about them.

It is …


Forty-Eighth Annual Report Of The Agricultural Experiment Station Of Nebraska, February 1, 1935, W.W. Burr Jan 1935

Forty-Eighth Annual Report Of The Agricultural Experiment Station Of Nebraska, February 1, 1935, W.W. Burr

Agricultural Research Division: News and Annual Reports

This report differs from previous reports in two respects: it covers experimental work up to January 1, 1935, and it includes brief abstracts of publications since the last report. Previously most of the report dealt with work done before the end of the fiscal year; that is, work done between June 30 and January 1 was not reported until over a year later, for the most part. The present report corrects that defect, and in addition the abstracts of publications will make the report useful as a reference guide to published matter.

The projects are discussed under subject headings and …


Whole Issue Nebraska Bird Review (Jan 1935) 3(1) Jan 1935

Whole Issue Nebraska Bird Review (Jan 1935) 3(1)

Nebraska Bird Review

Contents

A Quarter Century of Spring Bird Migration Records at Red Cloud. Nebraska. By Charles S. Ludlow………….. 3

General Notes ........................................... 26

Editorial Page .......................................... 32

The 1934 Migration Season ......................... 35

Christmas and New Year's Day Censuses ................... 43

Here and There with the N. O. U. Members ............... 45

In Memoriam ........................................... 47

Advertisement ........................................... 48


A New Fossil Peccary, Prosthennops Niobrarensis, From Brown County, Nebraska, Edwin H. Colbert Jan 1935

A New Fossil Peccary, Prosthennops Niobrarensis, From Brown County, Nebraska, Edwin H. Colbert

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

During the summer of 1929, the writer, accompanied by Mr. Paul O. McGrew of the University of Nebraska, discovered during the course of excavations for fossil vertebrates in northern Brown County, Nebraska, a fairly complete peccary skull referable to the genus Prosthennops. This skull, due to its several unusual characters, as well as to its fair degree of completeness, would seem to warrant a special and a rather detailed description. Consequently the specimen has been kindly turned over to me by Dr. E. H. Barbour, Director of the Nebraska State Museum, not only for the purpose of the present …


A New Miocene Dog, Mesocyon Geringensis, Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz Jan 1935

A New Miocene Dog, Mesocyon Geringensis, Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz

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

A field party from the Nebraska State Museum consisting of Messrs. E. L. Blue, Frank Crabill, Loren Eiseley, and C. Bertrand Schultz, on August 28, 1931, was fortunate in finding the remains of a new Mesocyon. This specimen, number 4-28-8-31, the Nebraska State Museum, was found in the Gering formation (lower Miocene), fifteen feet above the Brule, 400 feet west of the road in Redington Gap, near the center of the S. 1/2, sec. 14, T. 19 N., R. 52 W., west of Bridgeport, Morrill County, Nebraska.


Gnathabelodon Thorpei, Gen. Et Sp. Nov. A New Mud-Grubbing Mastodon, Erwin Hinckley Barbour, George F. Sternberg Jan 1935

Gnathabelodon Thorpei, Gen. Et Sp. Nov. A New Mud-Grubbing Mastodon, Erwin Hinckley Barbour, George F. Sternberg

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

In February, 1932, while opening a gravel pit to get material for highway construction, the skull, tusks, and mandible of a new longirostral mastodont were found by Robert Arnold on his ranch, Sec. 24, T. 12 S., R. 22 W., 1 1/2 miles due east of Ogallah, Trego County, western Kansas. This point is located about 20 miles west and three miles north of Hays, the seat of the Fort Hays Kansas State College, in the museum of which the above mentioned specimen is mounted and exhibited. When unexpectedly exposed by Mr. Arnold and his associates, the great skull was …


Comparison Of Runoff And Erosion In Prairie, Pasture, And Cultivated Land, J. E. Weaver, Wm. C. Noll Jan 1935

Comparison Of Runoff And Erosion In Prairie, Pasture, And Cultivated Land, J. E. Weaver, Wm. C. Noll

Papers of John E. Weaver (1884–1956)

Soil erosion resulting from runoff water has come to be recognized as a national menace. The determination and evaluation of all factors influencing runoff and erosion are studies of fundamental importance, especially insofar as they may be made to yield information upon methods of control over this insidious tendency of washing away the land.

"Fully 75 per cent of the crop-producing and grazing areas of the United States is sloping enough to set in motion, moderately or violently, these wasteful processes of accelerated soil-removal and excessive runoff. That 35 million acres of formerly cultivated land have been essentially ruined by …


Ec35-50 Bindweed Eradication, T.A. Kiesselbach, P.H. Stewart, D.L. Gross Jan 1935

Ec35-50 Bindweed Eradication, T.A. Kiesselbach, P.H. Stewart, D.L. Gross

University of Nebraska-Lincoln Extension: Historical Materials

Field bindweed, also known as small-flowered morning glory, European morning glory, Creeping Charlie, Russian Creeper, and Creeping Jennie, is becoming each year a greater menace to farm lands. The infestation of cultivated fields with this pest lowers the yield of crops an average of 30 percent, increases the labor costs, and reduces land and loan values. It is therefore important that land-owners learn to identify bindweed and guard against its introduction on their farms. Where it has become established, steps should be taken at once for its eradication.

This 1935 extension circular discusses identifying field bindweed, prevalence and spread of …


Measurement Of Run-Off And Soil Erosion By A Single Investigator, J. E. Weaver Jan 1935

Measurement Of Run-Off And Soil Erosion By A Single Investigator, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

That run-off water and soil erosion have become problems of both local and national importance is widely recognized. In fact soil erosion over at least half of the United States has reached the proportions of a national menace. To study quantitatively the amount of run-off and erosion from different topographical areas and types of soil under various climates as well as the quantities of soil lost under different methods of cropping, terracing, etc., the government has established Federal erosion stations. These are located in various widely separated areas. The accumulated results obtained at these stations are now finding an important …


Quantity Of Living Plant Materials In Prairie Soils In Relation To Run-Off And Soil Erosion, J. E. Weaver, George W. Harmon Jan 1935

Quantity Of Living Plant Materials In Prairie Soils In Relation To Run-Off And Soil Erosion, J. E. Weaver, George W. Harmon

Papers of John E. Weaver (1884–1956)

The menace of soil erosion did not appear in the west until much of the prairie was broken for cropping or weakened by continuous overgrazing. The grassland sod is a great conserver of rainfall; the amount of run-off water is relatively small, and the soil is firmly held against the forces of erosion. This study is concerned with the role that the living underground plant parts play in promoting the absorption of water by the soil, and especially their importance in reducing run-off. Their holding of the soil against the forces of water erosion has been experimentally determined. A study …


Notes On The Owls Found In Lincoln County, Nebraska, Wilson Tout Jan 1935

Notes On The Owls Found In Lincoln County, Nebraska, Wilson Tout

Papers in Ornithology

During more than a quarter of a century I have been making notes and collecting information about the Owls of Lincoln county and it seemed an opportune time to put this information into print that it might be available to those who are interested in birds and serve as a basis for further study and amplification. Lincoln County is not usually considered a favorable place for Owls to reside on account of the absence of heavy timber over most of its area. But the nine varieties listed will probably be extended as more observations are made by those who are …


Manual Of The Grasses Of The United States, A. S. Hitchcock Jan 1935

Manual Of The Grasses Of The United States, A. S. Hitchcock

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Introduction 1

Uses of grasses 1

Distribution of grasses 5

Morphology of grasses 6

Classification of grasses 10

Nomenclature 12

Common names 14

Scope of the manual 14

Gramineae (Poaceae), the grass family 15

Descriptions of the subfamilies and keys to the tribes 16

Subfamily 1. Festucoideae 16

Subfamily 2. Panicoideae 17

Descriptions of the tribes and keys to the genera 17

Tribe 1. Bambuseae 17

Tribe 2. Festuceae 17

Tribe 3. Hordeae 20

Tribe 4. Aveneae 21

Tribe 5. Agrostideae 22

Tribe 6. Zovsieae 24

Tribe 7. Chlorideae 24

Tribe 8. Phalarideae. 25

Tribe 9. Oryzeae 25

Tribe 10. …


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.


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 …


Wilt And Cold Resistance Of Self-Fertilized Lines Of Alfalfas, George L. Peltier, H. M. Tysdal Sep 1934

Wilt And Cold Resistance Of Self-Fertilized Lines Of Alfalfas, George L. Peltier, H. M. Tysdal

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The relative reactions to cold and wilt of self-fertilized lines of alfalfa through to the fifth generation are reported. Some of the reasons for undertaking a breeding program are given as well as methods used in the controlled cold and wilt determinations. Preliminary studies showed that reinoculating healthy individuals which had already resisted one wilt infection test served to eliminate additional plants, but the percentage healthy was much higher after the reinoculation than after the first inoculation. The foundation materials from which selections were made consisted of selected plants from a number of old Nebraska fields and a large collection …


The Effect Of A Controlled Nitrogen Supply With Different Temperatures And Photoperiods Upon The Development Of The Potato Plant, H. O. Werner Sep 1934

The Effect Of A Controlled Nitrogen Supply With Different Temperatures And Photoperiods Upon The Development Of The Potato Plant, H. O. Werner

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The potato (Solanum tuberosum Linn.) is grown under a great variety of conditions with regard to temperature, length of day, intensity and character of light, texture, fertility, and moisture of soil, and atmospheric humidity. There is need for a better understanding concerning the internal response of the potato plant to these external conditions when they are applied, either singly or in combination with each other, and the resulting morphological response, especially with regard to the tuberization process. It has been the object of this investigation to determine the relation of the nitrogen supply to the processes of stolon and …


The Vitamin E Content Of Certain Dairy Feeds, I. L. Hathaway, H. P. Davis Aug 1934

The Vitamin E Content Of Certain Dairy Feeds, I. L. Hathaway, H. P. Davis

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A study was made of the vitamin E content of each of the ingredients of our dairy herd ration, excepting the salt, lime, and bone meal. Female rats which were able to conceive but unable to reproduce when fed a diet deficient in vitamin E were fed the various feeds as a source of vitamin E during a second breeding period. The presence of vitamin E in a feed was thus shown by the ability of the female to cast a litter. The vitamin E content of bran, shorts, linseed oil meal, hominy feed, white corn, yellow corn, cottonseed meal, …


Some Observations On Humidity And Weight Loss In The Incubation Of Turkey Eggs, F. E. Mussehl, C. W. Ackerson Aug 1934

Some Observations On Humidity And Weight Loss In The Incubation Of Turkey Eggs, F. E. Mussehl, C. W. Ackerson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. Turkey eggs which are incubated under chicken hens lose from 11 to 13 per cent of their original weight during the first 24 days of incubation. Small turkey eggs lose relatively more weight than large eggs incubated under the same conditions. 2. Considerable variation was observed in the weight loss during the first 24 days of incubation of eggs of approximately the same size when incubated in the same environment. The range was from 7 to 24 per cent of the original weight. Differences in shell texture may account for these variations, although care was taken to select only …


Whole Issue Nebraska Bird Review (July 1934) 2(3) Jul 1934

Whole Issue Nebraska Bird Review (July 1934) 2(3)

Nebraska Bird Review

Contents

The Interior Carolina Paroquet as a Nebraska Bird. By Myron H. Swenk ... 55

General Notes ... 60

Editorial Page ... 67

The 1934 Migration Season ... 68

Here and There with the N.O.U. Members ... 89

Minutes of the Thirty-fifth Annual Meeting ... 90

Report on the Thirty-second Annual Field Day ... 96

Membership Roll of the Nebraska Ornithologists' Union ... 97

Published Lists of the Birds of Nebraska ... 100