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Articles 250201 - 250230 of 255945

Full-Text Articles in Life Sciences

North And South Dakota Horticulture, May 1933, North And South Dakota Horticultural Societies May 1933

North And South Dakota Horticulture, May 1933, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 5, Number 5

Climbing the Fruit Ladder, W.R. Leslie
Use of Honey in Diet for Children
The Blue-Winged Teal, O.A. Stevens
Black Hills Garden Notes, Mrs. Florence Bettleheim
North Dakota Horticultural Newsletter, Sec'y. A.F. Yeager
Marcus P. Beebe Memorial
Extracts from the Diary of a Traveling Man, W.A. Simmons
Some of my Planting Problems on the Prairie, Charles Benike
Tomato Variety Test, Purley L. Keene
Seed Planting Table
Buttercup Squash


Bird Studies Of The Bear River Marshes, Ernest W. Parkinson May 1933

Bird Studies Of The Bear River Marshes, Ernest W. Parkinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The establishment of the Bear River Bay Bird Refuge has created for the state of Utah an immense and valuable biological field, a veritable paradise for naturalist and sportsman alike. The naturalist wants a place to study wild life and the sportsman desires game. With the proper control of open seasons on wild fowl the hunting instinct and incentive for the sport should be satisfied for the sportsman. To the naturalist this region will open up bountiful treasures of knowledge that is to be gained only by intense and prolonged scientific study.

Within this new field, and the limited time …


A Critique Of Some Of The Metabolic Changes In The Mucosa Of The Alimentary Tract, Anthony Sanfelippo May 1933

A Critique Of Some Of The Metabolic Changes In The Mucosa Of The Alimentary Tract, Anthony Sanfelippo

Bachelors’ Theses

Among the many clinical conditions found in human beings, by both physician and surgeon, metabolic changes in the mucosa or peptic ulcer, as they are commonly known, stand out prominently from a purely scientific point of view, because of the divergent views brought forth during the past hundred yea.rs by even the ablest men. Peptic ulcer is a condition which manifests itself by a disturbance of the alimentary and digestive tracts, locally shown by an erosion of the devitalized cells of the mucous membrane.


A Morphological Study Of Daphniidae, Stanley E. Zawodny May 1933

A Morphological Study Of Daphniidae, Stanley E. Zawodny

Bachelors’ Theses

Th importance of fresh-water organisms is usually underestimated, especially by the very people who live near bodies of fresh-water and who thus can observe such organisms throughout the year. It is really easier to study minute life forms than it is to study larger organisms, for the former can be examined under all kinds of conditions as experiments are performed upon them. The purpose of this thesis is to give a short survey of the chief type among the fresh-water, Crustaceans, with special reference to morphology.


Heredity In Twinning, Dolores M. Kauffung May 1933

Heredity In Twinning, Dolores M. Kauffung

Bachelors’ Theses

Identical twins have been tn basis for a large amount of the evidence produced by scientists in upholding the contention that heredity is stronger and more important than environment.

It has been the purpose of this paper and the intention oi' the author to develop this theory and to attempt to discover how far heredity really affects the individual and. to what extent it may be influenced by environment.


Parasitology: With Special Reference To The Frog, Leo M. Boxer May 1933

Parasitology: With Special Reference To The Frog, Leo M. Boxer

Bachelors’ Theses

Prior to the middle of the sixteenth century the knowledge of parasites, their habits, life-histories and forms as limited to a few external parasites and a few parasitic worms. Previous to the discovery of, and knowledge gained by, the study of microscopic parasites, and the effects produced by them, nearly all diseases were thought of as some sort of punishment for sins committed.


An Introductory Study Of Correlations Existing Between The Weight Of Organs And The Length, Width, And Thickness In Pig Fetuses Of The Same Litter, Michael T. Crowley May 1933

An Introductory Study Of Correlations Existing Between The Weight Of Organs And The Length, Width, And Thickness In Pig Fetuses Of The Same Litter, Michael T. Crowley

Bachelors’ Theses

No studies seem to have been performed on pig fetuses, of the same litter, to determine correlations existing between the weight of organs and other types of measurements of the same organs.


Pasteurized Versus Raw Milk In Brick Cheese-Making, Z. Doyle Roundy May 1933

Pasteurized Versus Raw Milk In Brick Cheese-Making, Z. Doyle Roundy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The prime object of the work undertaken in the present study has been done with the view of determining whether or not the quality and yield of brick cheese may be improved by pasteurizing the milk from which the cheese is made. An effort should be made to put brick cheese-making on a more scientific basis and at the same time produce cheese of better and more uniform quality. Since milk, containing large numbers of undesirable microorganisms thus causing objectionable flavors and odors in dairy products, is frequently delivered to cheese factories to be processed, pasteurization seems to be one …


Inheritance Of Resistance To Loose Smut (U. Tritici) In Certain Wheat Crosses, Bion Tolman May 1933

Inheritance Of Resistance To Loose Smut (U. Tritici) In Certain Wheat Crosses, Bion Tolman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During recent years the principles of Mendelism have been used extensively in the production of the new types of plants possessing resistance to various diseases. Results of this mode of attacking the disease problem have been very favorable. Old varieties are gradually giving way to newer types equal to or exceeding in quality and productivity as well as possessing resistance to one or more diseases.

Loose smut (U. tritici) in wheat, while not as serious a problem in Utah as the covered smut (T. tritici), according to Tapke (14) has caused an average annual loss of between 50,000 and 100,000 …


A Dietetic Analysis Of The Nursery School Diets At The Utah State Agricultural College, Eleonora Jennie Tasso May 1933

A Dietetic Analysis Of The Nursery School Diets At The Utah State Agricultural College, Eleonora Jennie Tasso

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The establishment of the nursery school at the Utah State Agricultural College opened a means of approach to the infant and child nutrition problem from two angles:

First - as a highly effective agency for the direct improvement of the nutrition of the children under its charge; Second - as an opportunity for research into problems of child nutrition.


Forty-Seventh Annual Meeting Of The Iowa Academy Of Science And The Second Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1933, Iowa Academy Of Science Apr 1933

Forty-Seventh Annual Meeting Of The Iowa Academy Of Science And The Second Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1933, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.


On The Type Localities Of Certain Texas Phyllopoda, S. W. Geiser Apr 1933

On The Type Localities Of Certain Texas Phyllopoda, S. W. Geiser

Field and Laboratory

Packard, in the August, 1871, issue of Silliman's journal, published a number of new species of phyllopod crustacea, among which were five from Texas, namely, Limnetis gracilicornis, Estheria belfragei, Limnadia (Eulimnadia) texana, Streptocephalus texanus, and Apus aequalis.


An Epistemology, John D. Boon Apr 1933

An Epistemology, John D. Boon

Field and Laboratory

Our world lies midway between the stellar world above and the subatomic world below. It would be difficult to conceive of a more favorable position for a race that seeks to comprehend the material universe. This position makes it possible to look both upward and downward, and to use both telescopes and microscopes in obtaining empirical evidence upon which to build theoretical conclusions. A few years ago it might have been claimed that this midway position is more apparent than real; that by mere chance men had gone equal distance into things that were above and below their world; that …


Variation In The Parasitic Worm, Ascaridia Lineata, From Dallas County, Texas, Francis Marion Adams Apr 1933

Variation In The Parasitic Worm, Ascaridia Lineata, From Dallas County, Texas, Francis Marion Adams

Field and Laboratory

In the course of a recent study of the helminth parasites of domestic fowl in Dallas County, certain interesting variations were observed in the number and distribution of the caudal papillae of one of the parasites, Ascaridia lineata (Schneider). These are described below and illustrated in the accompanying figures.


A Comparison Of Commercial And Crude Samples Of Sodium Chloride, Jean Horace Sullivan Apr 1933

A Comparison Of Commercial And Crude Samples Of Sodium Chloride, Jean Horace Sullivan

Field and Laboratory

The object of the experiment was to compare the relative purity of several brands of table salt with crude sodium chloride as it comes from the mines. The comparison was made by a gravimetric determination of the chlorine as silver chloride. Two commercial samples obtained from the local stores were compared with a crude sample from Jefferson Island mine.


The Silvan Flora Of The White Rock Lake Region With Reference To Soil Types, Landon H. Baker Apr 1933

The Silvan Flora Of The White Rock Lake Region With Reference To Soil Types, Landon H. Baker

Field and Laboratory

White Rock Lake, lying at the east border of the City of Dallas, has been the focus of considerable biological study during the past few years, and the writer has been especially interested in the trees growing in the region. In this connection the question arose as to whether or not a correlation might exist between the species of woody plants found in the locality, and the physical and chemical structure of the various soils of the vicinity. The recently completed Soil Survey of Dallas County offers data upon the origin and nature of these soils, and these have been …


A Case Of Congenital Aphalangia In Man, Mayne Longnecker Apr 1933

A Case Of Congenital Aphalangia In Man, Mayne Longnecker

Field and Laboratory

An interesting case involving an incompletely developed left manus came to the writer's attention some time ago. The third, fourth, and fifth digits were entirely missing, save for small fleshy outgrowths; the index was about one and a half centimeters long, and obviously contained a bone, while the thumb appeared to be only about a centimeter shorter than the thumb on the subject's other and normal hand. The wrist seemed to possess an unusual degree of flexibility, and the left arm was normal, although of slightly less circumference than the right, the difference being probably due to its less use.


Longhorn Cavern, A Reconnaissance Survey, H. M. Law Apr 1933

Longhorn Cavern, A Reconnaissance Survey, H. M. Law

Field and Laboratory

The recent opening of the Longhorn Cavern, twelve miles south of the town of Burnet, in the "Central Mineral Region" of Texas, as a state park, has given this fine cave known by local residents for almost a hundred years, state and national interest.


Aerial Reconnaissance Mapping Of Land Utilization, Claude C. Albritton Jr. Apr 1933

Aerial Reconnaissance Mapping Of Land Utilization, Claude C. Albritton Jr.

Field and Laboratory

Within the last year, the Department of Geology and Geography of Southern Methodist University has initiated a series of land utilization studies for Dallas County. The survey divides the county into thirty areas of approximately thirty square miles each. The first two areas assigned, located in the northwest corner of the county, embracing about sixty-five square miles, contain two small urban centers, Farmers Branch (population 400), and Carrollton (population 689). In the course of field work on the assigned areas, the authors felt that an aerial reconnaissance might expedite the survey and an airplane trip was arranged to cover the …


Notes, Corrections, Alumnae Notes Apr 1933

Notes, Corrections, Alumnae Notes

Field and Laboratory

No abstract provided.


The Spectrum In Modern Science, Mildred Venable Lancaster Apr 1933

The Spectrum In Modern Science, Mildred Venable Lancaster

Theses & Honors Papers

No abstract provided.


Bulletin No. 241 - Peach Harvesting Studies, F. M. Coe Apr 1933

Bulletin No. 241 - Peach Harvesting Studies, F. M. Coe

UAES Bulletins

The purpose of the four seasons' study of maturity indexes of Elberta type peaches, made in Utah during the years 1926, 1928, 1929, and 1932 and presented in this publication, was to determine more accurately the best stage of maturity of peaches for distant shipment. In general, the procedure was: (1) To record color, pressure test, and other maturity indexes of fruit from trees under various conditions of culture, age, and vigor; (2) to classify the fruit by size and ground color; (3) to store under conditions comparable to refrigerated shipment to market; and (4) to record the appearance, quality, …


Kentucky Warbler (Vol. 9, No. 2), Kentucky Library Research Collections Apr 1933

Kentucky Warbler (Vol. 9, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


North And South Dakota Horticulture, April 1933, North And South Dakota Horticultural Societies Apr 1933

North And South Dakota Horticulture, April 1933, North And South Dakota Horticultural Societies

North and South Dakota Horticulture

Volume 5, Number 4

Spearfish Garden Club, Mrs. Florence Bettelheim
Hotbeds, Purley L. Keene
Extracts from the Diary of a Traveling Man, W.A. Simmons
North Dakota News Letter, A.F. Yeager
The Pintail, O.A. Stevens
A Home and a Garden, F.W. George
Ipswich, the Zinnia City
Early Potatoes, M.J. Tinline


The Relative Susceptibility Of Alfalfas To Wilt, George L. Peltier Apr 1933

The Relative Susceptibility Of Alfalfas To Wilt, George L. Peltier

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Except for alfalfa seed originating from a few old fields of Turkestan and Ladak, all varieties and strains now grown for commercial seed production in the United States, so far tested, have proved susceptible to wilt. All seed lots tested from South America (Chile, Argentina, and Uruguay), Europe (France, Spain, Portugal, Germany, Hungary, Italy, Roumania, and Ukranian S.S.R.), Africa (Morocco, Algeria, and Abyssinia), and Asia (Palestine, Manchuria, China, Korea, and Chinese Turkestan) were found to be susceptible to wilt. All seed lots of Turkestan origin so far tested are as resistant as Hardistan, or more so. Seed samples from the …


Letter From J. P. Burgess To S. B. Simmons. Letter From S. B. Simmons To J. P. Burgess, J. P. Burgess, S. B. Simmons Apr 1933

Letter From J. P. Burgess To S. B. Simmons. Letter From S. B. Simmons To J. P. Burgess, J. P. Burgess, S. B. Simmons

Documents

Letter from J. P. Burgess to S. B. Simmons, concerning sectional meeting. Letter from S. B. Simmons to J. P. Burgess, concerning Subsistence Division and sectional meeting.


The Comparative Anatomy Of The Kidneys, Edward Silberman Apr 1933

The Comparative Anatomy Of The Kidneys, Edward Silberman

Bachelors’ Theses

Most of the Information which I have been able to amass has been taken from text books dealing with the kidney as an excretory organ only. My bibliography, therefore, covers a rather limited field. In it there will be found no articles in the various journals as my endeavors to find any such articles on my particular subject have not met with success. My thesis does not only contain a comprehensive account of the kidney, its weight and size, but also an account of its shape, size and correlation in growth and size to the age and weight of the …


Contributions To The Anatomy Of The Mature Larva Of Papilio Polyxenes Fab. (Lepidoptera: Papilionidae), Ernst J. Dornfeld Apr 1933

Contributions To The Anatomy Of The Mature Larva Of Papilio Polyxenes Fab. (Lepidoptera: Papilionidae), Ernst J. Dornfeld

Bachelors’ Theses

Thia study was undertaken with the purpose of gathering more comprehensive information on the larval anatomy of a typical member of the lepidopterous family Papilionidae. Except for investigations dealing with the osmeteria, literature on the general anatomy of this otherwise well known family is very scant. Because of the relatively small number of speci­mens that were available for study, this paper has been limi­ted to a discussion of the external anatomy and of the gross . morphology of the digestive tract, the urinary system, the silk glands, and the mandibular glands. Important papers in which these structures have been …


Whole Issue Nebraska Bird Review (April 1933) 1(2) Apr 1933

Whole Issue Nebraska Bird Review (April 1933) 1(2)

Nebraska Bird Review

Contents

A Comparison of the Bird Faunas of the Pampas of Argentina and the Plains of Nebraska. By Lawrence Bruner . . . . . . . . . . . . . . . . . . 27

General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 29

Editorial Page........................................... 36

The 1933 Migration Season ................................ 38

Here and There with the N. O. U. …


Citrus Notes-The Romance Of Farming, Charles C. Chapman Mar 1933

Citrus Notes-The Romance Of Farming, Charles C. Chapman

Charles C. Chapman Citrus Speeches

Speech presented at the Orange County Christian Endeavor Convention. Mr. Chapman stresses that as a vocation, farming stands at the head of all callings, both in antiquity and usefulness. All people rely upon the endeavors of the farmer, for the food they eat and the clothes they wear.