Digital Commons Network^™

Research Bulletin 21, Studies Of Immunity Against Hemorrhagic Septicemia, 1922

University of Nebraska Historical Extension: Bulletin

Research Bulletin 21, Studies of Immunity Against Hemorrhagic Septicemia, 1922

Research Bulletin 20, Corn Investigations, 1922

University of Nebraska Historical Extension: Bulletin

Research Bulletin 20, Corn Investigations, 1922

Bulletin 182, Varieties Of Potatoes For Nebraska, 1922

University of Nebraska Historical Extension: Bulletin

Bulletin 182, Varieties of Potatoes for Nebraska, 1922

Ec1117 Revised 1922 Soap Making

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 1117 was revised in 1922 and contains ingredients and utensils that are needed for soap making, methods for making soap, and recipes for a few kinds of soap.

Ec1106 Control Methods For Household Pests

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 1106 provides information on control methods for household pests, which include house flies, mosquitoes, house ants, clothes moths, carpet beetles, cockroaches, crickets, silverfish, food infesting insects, aphids or lice on house plants, boxelder bugs, and rats and mice.

The Physiology Of The Respiration Of Fishes In Relation To The Hydrogen Ion Concentration Of The Medium, Edwin B. Powers

Papers in Systematics and Biological Diversity

Within recent years much has been added to the knowledge concerning the mechanism of the respiratory function of the blood. Haldane and Priestley (1905) have shown that, at least in the higher animals, the respiratory movements are affected by the carbon dioxide tension of the arterial blood. It has been shown definitely (Hasselbalch, 1912 and citations) that the exciting agent is the hydrogen ion concentration of the blood bathing the respiratory center.

Krogh and Leitch (1919) undertook to study the respiratory function of the blood of fishes in view of the knowledge of the influence of temperature upon the dissociation …

The Regional Adaptation Of Corn In Nebraska, T. A. Kiesselbach, F. D. Keim

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The purpose of this investigation was to determine some of the factors involved in the regional adaptation of corn. The procedure has been to make a comparative study of native corn types, known to be locally adapted to various regional areas in Nebraska through long growth there. The work has been confined to the single species group - Zea mays indentata. No one variety of a common source is grown throughout the state, and therefore it has been impossible to keep within a single variety. It would appear that the data should indicate morphological and histological plant characteristics involved …

Research Bulletin 19, Regional Adaptation Of Corn In Nebraska, 1921

University of Nebraska Historical Extension: Bulletin

Research Bulletin 19, Regional Adaptation of Corn in Nebraska, 1921

Bulletin 177, Nebraska Tractor Tests, 1921

University of Nebraska Historical Extension: Bulletin

Bulletin 177, Nebraska Tractor Tests, 1921

The Diatoms (Bacillarioideae) Of Nebraska, Clarence J. Elmore

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Class BACILLARIOIDEAE
One-celled aquatic plants living in filaments, or more commonly broken into single cells ; free, attached to the substratum, epiphytic on other plants, or enclosed in gelatinous tubes ; cell wall of cellulose infiltrated with silica; the wall of each cell (frustule) consisting of two plates (valves) which form the ends of the cell and are connected by two or more girdles, the one fitting outside the other like the cover of a box. Protoplasm parietal and forming a large mass in the center of the cell in which the nucleus is located and which separates the central …

Bulletin 178, Winter Wheat Seed-Bed Preparation, 1921

University of Nebraska Historical Extension: Bulletin

Bulletin 178, Winter Wheat Seed-bed Preparation, 1921

The Relative Frequency Of Crossing Over In Microspore And In Megaspore Development In Maize, R. A. Emerson, C. B. Hutchison

Department of Agronomy and Horticulture: Faculty Publications

One of the early developments in the study of linkage in Drosophila was the discovery that the phenomenon of crossing over is confined to the female sex (Morgan 1912). The fact that no crossing over occurs in the male Drosophila holds true not only for sex-linked genes but for factors in the autosomes as well and is so well established that it affords a most convenient method of determining to which of the different linkage groups a new factor belongs.

The same phenomenon, but with the sexes reversed, obtains in the silkworm moth. Tanaka (1914, 1915) has found from back-cross …

How To Select Good Layers, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Circulars

Certain standard methods of selecting good laying hens have been developed as a result of observations made at the laying contests and at other places where trapnesting is being done.

The Immunizing Value Of Commercial Vaccines And Bacterins Against Hemorrhagic Septicemia, L. Van Es, H. M. Martin

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In the course of certain studies having to do with hemorrhagic septicemia, we were particularly struck with the difficulties which we encountered in the immunization of susceptible laboratory animals (rabbits). This difficulty in no small degree excited our curiosity regarding the immunizing value of the considerable number of "Hemorrhagic Septicemia bacterins and vaccines" which during recent years have become such a prominent article of commerce. In the hope of securing some information relative to the immunizing value of the agents mentioned, we undertook a series of experiments in which the immunity of the bacterin and vaccine injected laboratory animals was …

The Value Of Commercial Vaccines And Bacterins Against Fowl Cholera, L. Van Es, H. M. Martin

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A great prevalence of the disease known as fowl cholera has naturally stimulated an interest in possible means of prevention and especially in those which may bring about a more or less lasting immunity. Vaccines which were favorably reported by some failed utterly in the hands of others, so that on the whole no substantial advantage has been gained. Vaccines and bacterins are nevertheless constantly urged on poultry owners confronted with disease and the Experiment Station is frequently called upon to give an opinion on their value or to recommend any special preparation. In order to comply with those demands …

Freezing Injury Of Seed Corn, Theodore A. Kiesselbach, J. A. Ratcliff

University of Nebraska-Lincoln Extension: Historical Materials

Research Bulletin No. 16
The University of Nebraska Bulletin of the Agricultural Experiment Station of Nebraska

Summary • Introduction • Character of corn embryo and process of germination • Freezing injury not due to arrested development of the embryo • Moisture content of corn • Old corn • New corn • Physical effects of freezing • Ice formation in kernels • Effect of freezing on color of embryo • Effect of freezing on embryonic tissues • Chemical effects of freezing • Probable cause of death from freezing • Historical review • Crushing of plant tissues or rupturing of cell structures …

Freezing Injury Of Seed Corn, T. A. Kiesselbach, J. A. Ratcliff

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The object of the investigations in this bulletin has been to determine the conditions under which freezing injury may occur to seed corn; to indicate, if possible, the vital changes in the embryo resulting in such injury; and to point out ways by which seed corn of strong vitality and satisfactory yielding capacity may be obtained.

Bulletin 175, Experimental Hog Feeding, 1920

University of Nebraska Historical Extension: Bulletin

Bulletin 175, Experimental Hog Feeding, 1920

Circular 14, Hog Houses For Nebraska, 1922

University of Nebraska Historical Extension: Bulletin

Circular 14, Hog Houses for Nebraska, 1922

Research Bulletin 16, Freezing Injury Of Seed Corn, 1920

University of Nebraska Historical Extension: Bulletin

Research Bulletin 16, Freezing Injury of Seed Corn, 1920

Research Bulletin 17, Immunizing Value Of Commercial Vaccines And Bacterins Against Hemorrhagic Septicemia, 1920

University of Nebraska Historical Extension: Bulletin

Research Bulletin 17, Immunizing Value of Commercial Vaccines and Bacterins Against Hemorrhagic Septicemia, 1920

Research Bulletin 18, Value Of Commercial Vaccines And Bacterins Against Fowl Cholera, 1920

University of Nebraska Historical Extension: Bulletin

Research Bulletin 18, Value of Commercial Vaccines and Bacterins Against Fowl Cholera, 1920

Bulletin 176, Summer Hog Feeding, 1920

University of Nebraska Historical Extension: Bulletin

Bulletin 176, Summer Hog Feeding, 1920

Bergson's Theory Of The Comic In The Light Of English Comedy, Louise Mathewson

University of Nebraska Studies in Language, Literature, and Criticism

From Plato onward many of the world's greatest thinkers have attempted to tell the meaning of laughter. It is not surprising that the thing has proved alluring, for whereas a true theory of laughter might add little to our enjoyment of the comic; it would, nevertheless, help us to understand the nature of life and mind. But although laughter is perhaps the lightest of human possessions, it is the most difficult to capture for examination. Neither philosopher nor literary critic has given us a wholly satisfactory account of the comic. One difficulty is that so many things are true of …

Fusarium Blight Of The Soy Bean And The Relation Of Various Factors To Infection, Richard O. Cromwell

Nebraska Agricultural Experiment Station: Historical Research Bulletins

An investigation was outlined (1) to determine the parasitism of Fusarium on soy bean, (2) to establish its relationship to Fusaria of the section Elegans in so far as a comparison of the cultural characters permitted, and (3) by means of cross- inoculations and field studies to determine the relationship of this disease of soy beans to the wilt disease of cowpeas (Vigna sinensis Hassk.) caused by Fusarium tracheiphilum Smith. The results of these investigations up to the close of the summer of 1916 have been reported. The studies were continued at the North Carolina Experiment Station until the …

Dairy Barn And Milk House Arrangement, J. H. Frandsen, W. B. Nevens

Nebraska Agricultural Experiment Station: Historical Circulars

From an economic point of view, as well as from the standpoint of animal comfort, it is highly desirable that adequate barn or shed facilities be provided for the dairy herd. Some farmers have developed the idea that to keep cows healthy and comfortable and to produce sanitary milk it is absolutely necessary to have expensive barns. As a matter of fact, many of the dairy barns where sanitation is the primary object are quite inexpensive. On the other hand, if the barn is conveniently arranged and made to embody the most accepted sanitary features, it is very essential that …

New Species Of Water Mites Of The Genus Arrhenurus, Ruth Marshall

School of Biological Sciences: Faculty Publications

About ninety genera of Hydrachnidae are now recognized, with some eight hundred species. About one-fourth of these species belong to the single genus Arrhenurus. Fifty-five have been described for North America, chiefly from the upper Mississippi valley. This paper adds one new species.

On The Specific Identity Of Heronimus Chelydrae Maccallum And Aorchis Extensus Barker And Parsons, Horace Wesley Stunkard

Harold W. Manter Laboratory of Parasitology: Library Materials

The monostomes are among the least known of North American trematode groups. Records give descriptions of only six species, each the single representative of a genus, and according to the classification of Ward (1918) belonging to four different families. Existing descriptions in most cases are far from complete and data necessary for taxonomic determination are lacking. This deficiency has been pointed out by other workers, both in this country and in Europe, and the classification of the monostomes is not well established. In fact, certain investigators regard them as aberrant forms, sprung from different distome groups, which alike have lost …

Purebred Sires Effect Herd Improvement, M. N. Lawritson, J. W. Hendrickson, W. B. Nevens

Nebraska Agricultural Experiment Station: Historical Circulars

The real worth of a sire for the dairy herd can be established only when production records of the progeny are available for comparison with those of the preceding generation. A study of the following three sires which have been in service in the University of Nebraska dairy herd should be of interest to the Nebraska dairyman wishing to improve his own herd. This experiment indicates that the apparently high cost of a good herd sire is more than outweighed by the increase in the value of the progeny.

Outline Of Object And Plan Of The Nebraska National Egg Laying Contest, Nebraska Agricultural Experiment Station

Nebraska Agricultural Experiment Station: Historical Circulars

To promote the breeding of high laying strains of standard-bred poultry is the primary purpose of the Nebraska National Egg Laying and Breeding Contest. Data on the cost of egg production and on the problems of poultry breeding will also be secured.