Life Sciences Commons^™

Textile Study : Wool, Azalea Linfield

SDSU Extension Circulars

Materials made from woolen and worsted yarns are among our most useful and valued textiles. The raw material is procured form the fleeces of the various breeds of sheeps, goats, and other animals living in all parts of the world. The clothes made from this wool or hair vary greatly, as the fiber ranges from the short staple, soft, crumpy, dull merino wool to the long, silky, lustrous wool of the Leicester sheep of England, the glossy hair of the Angora goat of Constantinople, or the long, coarse hair of the Chinese sheep. The length of the staple varies from …

Textile Study : Linen, South Dakota State College And U.S. Department Of Agriculture Cooperating

SDSU Extension Circulars

Linen has been called the textile of luxury as its expense in fine grades stands in the way of its common use. In olden times it supplied many of the family needs but in the present day cotton has largely supplanted it for common uses. Linen is made from the long, lustrous fiber obtained from the stock of the flax plant grown in European countries and to some extent in America. (See more in text.)

Textile Study : Silk, Azalea Linfield

SDSU Extension Circulars

The filament which is obtained from the cocoons of the cultivated silkworm makes the costliest and most beautiful textile fabric. A variety of materials are made from it, ranging from filmy chiffon and lade to the heaviest plushes and grosgrains, and from soft dull finishes to the most crisp and glossy ones. The popularity and demand for it at a low price have caused adulterations of it and substitutes of other fibers for it. Women’s lack of knowledge is a large factor in the unreliability of purchased material.

Life-History Of Melittobia Acasta, L. Balfour Browne

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No abstract provided.

Morphologische Und Biologische Untersuchungen Der Putzapparate Der Hymenopteren Summary, Johannes Gennerich

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No abstract provided.

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 …

1922 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

A Progress Report Of The Results Secured In Treating Pure White Pine Stands On Experimental Plots At Keene, New Hampshire., Ralph C. Hawley

Yale School of the Environment Bulletin Series

In October, 1905, nineteen permanent sample plots were established in the white pine type near Keene, New Hampshire, by the United States Forest Service in cooperation with the Faulkner and Colony Manufacturing Company on lands owned by the latter. The plots were remeasured in 1909 and again in 1915 by representatives of the United States Forest Service. After the 1915 measurement the plots were turned over to the Yale School of Forestry. In September, 1920, the plots were remeasured for the third time, three additional plots were established and six of the original plots were discontinued. Fifteen years have elapsed …

The School Lunch Box, Mary A. Dolve

SDSU Extension Circulars

The cold lunch at its best is not the most desirable food for taking care of the food requirements of the child, and when it is to be repeated every day of the school year is very apt to become tiresome and monotonous. The feeling that anything will do for the lunch box is altogether too prevalent. The lack of time is the most common excuse for the poorly prepared lunch box. It does not take any more time to put up wholesome lunches in an attractive way, but it does take thought and an appreciation of what the boy …

The Flat-Headed Apple-Tree Borer, Fred E. Brooks

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

The flat-headed apple-tree borer, a serious orchard pest throughout the greater part of United States, is found from the Atlantic to Pacific and from Florida and Texas to Canada.

The larva, or grub, of this insect (which in the adult stage is a medium-sized beetle) bores in the bark and wood of a great variety of trees, but is best known as an enemy of apple, pear, peach, and other cultivated fruit trees. Its depredations are felt in almost every locality where orchards have been planted.

Fortunately, this borer almost invariably confines its attacks to the sunny sides of trees …

Relation Of Hardpan To Root Penetration In The Great Plains, J. E. Weaver, John Crist

Department of Agronomy and Horticulture: Faculty Publications

During the excavation of root systems of native and crop plants through- out the Great Plains region during the past five years (Weaver, 1919,1920, 1922) contact has been made in more than thirty fields with the so-called hardpan. Such a layer of soil underlies much of this area of low rainfall, at depths varying from 15 inches to 3 feet. It varies from 8 inches to over 1.5 feet in thickness. In connection with studies on the physical and chemical composition of the soils and their seasonal water-content under natural and cropped conditions, a more detailed study has been made …

A Half Century Of Progress, A Contrast, The Negro In America In 1866 And In 1922, Monroe N. Work

Documents

History pamphlet, reprinted from article in Missionary Review of the World.

Development And Activities Of Roots Of Crop Plants: A Study In Crop Ecology, J. E. Weaver, Frank C. Jean, John W. Crist

Department of Agronomy and Horticulture: Faculty Publications

Introduction
I. INVESTIGATIONS AT PERU, NEBRASKA, IN 1919.
University No. 21 oats, Avena sativa
Swedish Select oats, Avena sativa
Durum wheat, Triticum durum
Marquis wheat, Triticum aestivum
Manchuria barley, Hordeum vulgare
Corn, Zea mays indentata
Earlier investigations of corn
Potato, Solanum tuberosum
Earlier investigations of potatoes
Comparison of root systems
Environmental conditions of growth
Summary of root development
II. INVESTIGATIONS AT LINCOLN, NEBRASKA, IN 1919 AND 1920.
Oats, Avena sativa
Barley, Hordeum vulgare
Wheat, Triticum aestivum
Alfalfa, Medicago sativa
Sweet clover, Melilotus alba
Comparison of root systems
III. INVESTIGATIONS AT PHILLIPSBURG, KANSAS, IN 1920.
Oats, Avena sativa
Barley, Hordeum vulgare …

Genetic Interrelations Of Two Andromonoecious Types Of Maize, Dwarf And Anther Ear, R. A. Emerson, Sterling H. Emerson

Department of Agronomy and Horticulture: Faculty Publications

Attention was called by Montgomery (1906)to the occasional appearance

of perfect flowers in the staminate inflorescence of maize and similar

cases were reported by Kempton (1913). Montgomery (1911) described

with illustrations a true-breeding type of semi-dwarf dent maize, the ears

of which were perfect-flowered. Perfect-flowered maize was described

and illustrated also by Blaringhem (1908, pp. 180-183). East and

Hayes (1911, pp. 13, 14) noted and illustrated a perfect-flowered sweet

corn. Weatherwax (1916, 1917) showed that typically pistillate

flowers of maize exhibit in microscopic sections the rudiments of stamens

and that staminate flowers show rudiments of pistils.

On Eumenes Alluaudi Perez, A Precinctive Wasp Of The Seychelles (Hymenoptera), Joseph Bequaert

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In my Catalogue of Ethiopian Diplopterous Wasps, published in 1918, I have attempted to correlate the various described forms of African Eumenes. In many cases, where specimens were not available for study, my conclusions were based on such inferences as could be made from published accounts, and were therefore only tentative. Eumenes alluaudi J. Perez,2 for instance, I regarded at the time as one of the color variants of Eumenes lepeleterii Saussure, to which it was said to be related by the author of the species. Through the courtesy of Mr. A. S. Rohwer, I recently had opportunity to examine …

New Species And Collections Of Arrhenuri: 1921, Ruth Marshall

School of Biological Sciences: Faculty Publications

The genus Arrhenurus, the largest group of the water mites, continues to yield new material from collections in lake regions. The new species described in this paper came from regions as far apart as Canada and China; while additional notes on already described species are based on material secured in several states of northeastern United States, some of them from new localities. Through the kindness of Professor N. Gist Gee, of Soochow University, material was secured for the description of new species from China. Professor Frank Smith and Dr. H. R. Vancleave, of the University of Illinois, were good enough …

Notes On The Hawaiian Bees Of The Genus Megachile (Hymenoptera), Philip H. Timberlake

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The discovery of a fifth species of Megachile on Oahu brings up the question of the endemicity of these bees.

Boys' And Girls' Club Work : Dairy Clubs, State Club Leaders And Dairy Extension Specialist

SDSU Extension Circulars

Dairy clubs under proper leadership are organized by and for the boys and girls, having for their object:
1. The elimination of inferior dairy cattle.
2. A means of income to the boy or girl.
3. To create interest and pride in ownership.
4. More efficient and economical feeding.
5. To demonstrate the superiority of good purebred dairy cattle.
6. To emphasize the importance of dairy products in the diet.
Not all dairy clubs will attain all of these objects in a single year. The work is arranged so that it may be carried on for a number of years, …

Wie Ist Tiphia Rufiventris Pz. Zu Deuten?, J. D. Alfken

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In seiner verdienstvollen, jedem Apidologen zu empfehlenden Arbeit “Apidae-Sphecodinae” im Arch. F. Naturgesch., 85. Jahrgang, 1919, bezieht R. Meyer die Tiphia rufiventris Pz. Auf Sphecodes rubicundus Hags. Dies ist meiner Meinung nach nicht richtig. Der breite Kopf mit den erweiterten Schlafen in der von dem bekannten Zeichner und Entomologen Jakob Sturm ausgefuhrten guten Abbildung weisen gewiB nicht auf Sphecodes rubicundus hin.

Eine Hymenopteren-Ausbeute Aus Dem Amanusgebirge. (Kleinasien Und Nord-Syrien, Südl. Armenien.), Josef Fahringer, Heinrich Friese

Er

No abstract provided.

Circular No. 46 - Thirty Years Of Agricultural Experiments In Utah, F. S. Harris, N. I. Butt

UAES Circulars

The Utah Agricultural Experiment Station has been established over thirty years. During this time more than a hundred experimenters have worked on the staff, each one contributing something to aid in the researches that have been conducted. During the first few years regular annual reports were published, but during recent years no such reports have been issued. The results of the work of the Station have been published in station bulletins and circulars and in various technical journals.

Since there is no publication or series of publications that records all the activities of the Station it was thought desirable at …

Localization Of The Motor Area In The Brain, Marian Josephine Xander

Biology Honors Papers

This 15 page thesis examines theories of brain function, localization of sense and motor area and experimental methods.

Co-Operative Wool Marketing In South Dakota, J. C. Holmes

SDSU Extension Circulars

During 1918 and 1919 several of the counties of the state, through the help of their farm bureaus and county agricultural agents, assisted sheep raisers in marketing their wool cooperatively via the county wool pool system. This method afforded a great many advantages over the old system wherein each sheepman marketed his wool privately to county buyers, in that it made possible selling on a grade basis, assembling the wool in car lots, and in many other respects reduced the expense of marketing considerably. However, by the spring of 1920, it had become evident that the county pooling system had …

Circular No. 45 - Alfalfa Production Under Irrigation, George Stewart

UAES Circulars

Alfalfa was first planted and cared for by half-civilized man long before any history was written. In spite of the fact that its line of descent has come thru the Medes and Persians by way of the Greeks, the Romans, the Moslems, and the Spaniards,--in spite of long sojourns in many lands, the heritage is still undefiled. Instead of losing in adaptability, possibly long centuries of trial have made it more fit. At any rate, here it is: high in power to yield, rich in power to nourish.

With its deep roots it laughs at drought and mellows up the …

Vegetation Mapping, Paul B. Sears

Papers in Ecology

The value of accurate maps of native vegetation as a basis for very practical generalizations can not be questioned. It is obvious that an essential condition for getting accurate maps of large areas is the existence of precise maps of smaller component ones. At present very few precise local maps are available, but it is to be hoped that botanists throughout the country will begin to supplement the efforts of a few of their number who are doing map work of permanent and general' value.

Circular No. 44 - The Agriculture Of Utah, F. S. Harris

UAES Circulars

Agriculture is so intimately related to all other industries that anything which affects the farmer reflects itself in all branches of business. The banker, the merchant, and the manufacturer must keep in touch with crop and livestock conditions of the country in order to foresee the tendencies of their own businesses. This is particularly true in a state like Utah which depends fundamentally on the products of the soil for its prosperity.

Numerous requests are received by the Experiment Station from prospective settlers living out side of the state for information concerning the agriculture of Utah. These have been kept …

Bulletin No. 180 - The Irrigation Of Alfalfa, F. S. Harris, D. W. Pittman

UAES Bulletins

In the United States alfalfa-growing has gone hand in hand with the development of irrigation. Alfalfa did not become an important crop in the country until after irrigation began to be practised in the West. Very soon after the pioneers reached Utah, alfalfa was brought to the state where it found conditions well suited to its growth. Wherever settlement extended alfalfa was raised as one of the most important crops, and finally from the West it has spread eastward into the humid parts of the country.

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 …

The Nebraska Tractor Law And Rules For Official Tractor Tests, O. W. Sjogren, E. E. Brackett, C. W. Smith, F. R. Nohavec

Nebraska Agricultural Experiment Station: Historical Circulars

The Nebraska Tractor Law, which became effective July 15, 1919, was enacted to encourage the manufacture and sale of improved types of tractors and to contribute to a more successful use of the tractor for farming. It was thought that the best method of accomplishing these objects would be to require a tractor of each model sold in the State to be tested at the State University and to have the results of these tests made public.

A New Blood Fluke From Turtles, Henry Baldwin Ward

Harold W. Manter Laboratory of Parasitology: Library Materials

For several years an interesting trematode has been under observation in the laboratory here. It occurs in various species of turtles, and was first discovered in some material shipped in from the south for class work. Peculiar importance attaches to the fact that it is a species inhabiting the circulatory system, and in fact it shows a relationship to the blood-inhabiting flukes of man which has become more clearly evident as the observations have accumulated. Since the material is easily obtained, it will afford perhaps the best opportunity available in this country for the laboratory study of forms adapted to …