Digital Commons Network^™

Equipping A Vitamin Laboratory On Depression Funds, May L. Whitsitt

Field and Laboratory

The spending of a sum of money for research purposes in days of decreased and declining income takes on the air of a real adventure. When given the opportunity of undertaking a research problem in the field of vitamin investigation the writer eagerly set out to see how far funds could be extended.

The Frequency Of Occurrence Of Albinism In Terrestrial Isopods, S. W. Geiser

Field and Laboratory

The well-known British geneticist, Professor F. A. E. Crew, of the University of Edinburgh, in a plate illustrating his article, "Albino," in the fourteenth edition of the Encyclopaedia Britannica, gives an excellent figure showing albinism in the common European lobster, Homar1lS gammarus (L.). This unusual figure and record, as one of the few reported cases of albinism among the Crustacea, deserves more than passing comment.

Field And Laboratory, Notes

Field and Laboratory

With the belief that the discipline of writing and the possibility for publication will promote a spirit of research, Field and Laboratory begins with this issue as a semi­annual magazine devoted to the publication of the results of work done by students and teachers of science in Southern Methodist University. The articles in this issue include the records of experiments conducted in the Physics, Biology, and Chemistry laboratories, and of field studies in Geology and Geography. As the magazine is sponsored by the entire science group, articles will of necessity be varied in character; it is planned to include in …

Bulletin No. 235 - Biennial Report, Utah Agricultural Experiment Station: July 1, 1930 To June 30, 1932, P. V. Cardon

UAES Bulletins

President E. G. Peterson

Sir: I have the honor to transmit the report of the Utah Agricultural Experiment Station for the biennium ending June 30, 1932. This report includes the reports of the various departments as well as other information pertaining to the work of the Experiment Station during this two-year period.

Respectfully submitted, P. V. CARDON, Director.

Sporogenesis In Riccia Natans L., Mary Fortunata

Bachelors’ Theses

Until comparatively recent years little, comprehensive Cytological work had been done on the lower forms of plant life including the Liverworts. Cavers (1903) stated that Micheli in 1729 named a species "Hepaticae fontana" because of the supposed resemblance between the branched thallus and the lobes of the liver, and although this species was later named "Fegatella conica", the name "Hepaticae" has, since then, been applied to the whole group of Liverworts. Between 1850 and 1862 Hofmeister demonstrated "Alternation of Generations" in this group, and it was this characteristic that distin­guished them permanently …

The Reaction Of Salts On The Regional Muscular Activity Of The Earthworm, Ernest D. Habeger

Electronic Theses & Dissertations

Though a great amount of work has been done concerning the effects of salts upon the organic constituents of all muscular tissues of the earthworm, very little has actually been accomplished showing the effect of salts on the rhythmic contractions of that animal. However, the normal peristaltic activity of the muscles of the earthworm has been shown to represent a characteristic behavior from its anterior to its posterior extremity.

It is the purpose of this investigation to demonstrate the effects of various concentrations of salts on this normal rhythmic activity of the various regions of the earthworm.

A Study Of Some Species Of Pediastrum And Scenedesmus, Irene Cull

Bachelors’ Theses

Although regarded by the untrained observer as slime, filth and scum, algae are fascinating to the botanist who has become interested in them. Algae are found everywhere; they are our commonest water plants. Among the green algae we have some of the most beautiful and fascinating forms in the plant kingdom and undoubtedly Pediastrum and Scenedesmus, the two genera studied, are among the most beautiful of all.

Values To Be Derived From A Study Of Biology, Florence J. Kane

Bachelors’ Theses

My problem was to discover what scientists, educators, and people interested in the teaching of biology considered the most important values to be derived from a, study of this subject.

The Genesis Of Tetanus And Characteristic Features Of A Single Muscular Contraction, Clarence S. Livingood

Biology Honors Papers

This 25 page thesis discusses experimental work on muscle stimulation to produce complete tetanus.

The Pituitary, Thyroid, And Adrenal Glands Of The Opossum, Max F. Drozewski

Bachelors’ Theses

In recent years a great deal has been written on the endocrine glands. However most of the articles deal with the physiological function of the various ductless glands only. Very little of this literature deals with the anatomical structure of the organs themselves. In this thesis we shall discuss the anatomical structure of the endocrine glands namely, the Pituitary(hypophysis), Thyroid and the Adrenal of a marsupial. The work has been done on the opossum of the virginia species, Didelphis virginiana. Only two specimens were available for dissection.

The Spleen Histology And Differences In Functions, John Shakula

Bachelors’ Theses

In delving into the literature concerning the Spleen one is greatly surprised to find so much diversity of opinion concerning its origin, histology and functions.

The Endocrine Glands And Their Secretions, Eldred M. Moehrke

Bachelors’ Theses

In the following work the endocrine system was considered in general with special emphasis on the thyroid and para-thyroid glands. In some manner,which we do not well understand,the thyroid and the para-thyroid glands affect the other ductless glands and it is this relationship that is stressed.

General Morphology And Physiology Of The Urogenital System Of The Opossum, Robert Schuster

Bachelors’ Theses

From the very first, I wish the state that the title, "General Morphology and Physiology of the Urogenital System of the Opossum," is not entirely descriptive of the text which is to follow. However it is as nearly descriptive as I could hope to make it.

It seems that during the history of biological research the workers have done comparatively little work on the Opossum. This neglect was probably due to its inaccessibility, since it is found only in Australia and in the semitropic regions of North America. In the nineteenth century the eminent authority on anatomy, Sir Richard Owen, …

A Morphological And Systematical Study Of The Genus Brachinus Of The United States, Almon L.D. Brown

Theses and Dissertations

The genus Brachinus belongs to the well-known family Carabidae, commonly known as "Ground Beetles". About 15,000 species of Carabidae have been described, of which over 100 genera and 1,200 species occur in the United States. (Dodd Mead 1928).

The Articulated Skeleton Of Titanotherium, Erwin H. Barbour

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

The skeleton of a titanotherium, stored since 1894, was installed in the west corridor of Morrill Hall, April 28, 1931. In the meantime the specimen has been visited by many citizens, women's clubs, and especially by delegations of school children, boy scouts, and like organizations, from various parts of the State and elsewhere. Repeated requests for a popular report on this particular specimen actuates the writing of this leaflet. Titanotheres were by far the largest creatures of Oligocene time in Nebraska. In point of size they are called gigantic, elephantine, and titanic. The titans of Greek mythology were giants, and …

The Scottsbluff Bison Quarry And Its Artifacts, Erwin Hinckley Barbour, C. Bertrand Schultz

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

The association of artifacts with extinct bison bones in a quarry near Grand Island, Hall County Nebraska,¹ and from one in Custer County, Nebraska, have already been reported.² In the meantime, continued search has been rewarded, and a large bed of fossil bison with associated flint implements found. The discovery, if not of actual consequence, at least adds something to the accumulating evidence that Pleistocene man in America may have been a reality.

Association Of Artifacts And Extinct Mammals In Nebraska, Bertrand Schultz

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

During the past four years the Nebraska State Museum, under the directorship of Dr. Erwin Hinckley Barbour, has been making even more extensive palaeontological collections throughout Nebraska than heretofore. As work progresses, especially with fossil bison and mammoth, there is increasing evidence that man appeared in Nebraska much earlier than is generally believed. Two occurrences of artifacts associated with fossil bones will constitute the main theme of this paper.

The Mounted Skeleton Of Bison Occidentalis, And Associated Dart-Points, Erwin Hinckley Barbour, C. Bertrand Schultz

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

A composite skeleton of Bison occidentalis was mounted and installed in its case on the lower floor of Morrill Hall, on April 22, 1932. The skeleton in itself is attractive because of its size and excellent preservation, and is rendered additionally interesting by two dart-points, one found under the scapula, and the other under the ribs.

A New Oreodont Slab, Erwin Hinckley Barbour, C. Bertrand Schultz

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

A slab of pale, reddish-brown sandstone, exhibiting the articulated skeletons of two oreodonts, has been placed on display in the west corridor on the first floor of Morrill Hall. Apparently, a female and well-grown young one lay down together and perished, perhaps from disease, or from chilling winds. They must have been buried quickly, for all of the bones are present, are in perfect condition, and are in articulation, especially in the old one. In the adult the articulation is complete from the ungual phalanges of the two forefeet to the terminal caudal, even though in the figure the skeleton …

The Mandible Of Platybeldon Barnumbrowni, Erwin Hinckley Barbour

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

Platybelodon barnumbrowni was described originally as Torynobelodon barnumbrowni.¹ The Nebraska State Museum was visited and this unique specimen studied by Dr. Henry Fairfield Osborn and Dr. Walter Granger, August seventeenth and eighteenth, nineteen hundred and thirty-two. It is the opinion of both that this specimen belongs properly to their Mongolian genus Platybelodon. With certain reservations the writer wishes to defer instantly to their judgment, which is based on unequalled experience. It is perfectly apparent that this form makes a close approach to the remarkable Platybelodons found by Granger and Andrews in the Gobi Desert of Mongolia, later figured and …

The Skull And Mandible Of Mastodon Moodiei, Erwin Hinckley Barbour

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

The mandible of the Milford mastodon, Mastodon moodiei, was figured and described in Bulletin 24, December, 1931. In the meantime, the fragments of both skull and mandible have been properly cleaned, put together, and mounted for exhibition. No essential parts of the skull or mandible are wanting or are seriously damaged.

The Articulated Skeleton Of Eubelodon Morrilli, Erwin Hinckley Barbour

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

The mounted sketleton of Eubelodon morrilli was installed in the west wall case of Elephant Hall December 31, 1931, and has attracted the attention and favorable comments of citizens and other guests. It should be explained that the case in which it is displayed is ten feet deep, sixteen feet high, and extends the length of the hall. Altogether it is a large and impressive mount which reflects credit upon its preparators, and is an important and instructive addition to the Morrill Palaeontological Collections. The pose is spirited and interesting, and the action is all that can be expected of …

Association Of An Arrow Point With Bison Occidentals In Nebraska, F. G. Meserve, Erwin H. Barbour

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

Of late, anthropological literature relative to the association of man and extinct mammals, especially bison and mammoth, has received many contributions from various and widely separated sources. Naturally the question has arisen whether man's advent in America is somewhat earlier than has been generally admitted, or whether certain extinct animals have persisted longer than has been realized. The issue is one of such importance and interest that even minor contributions seem desirable. It is well understood by all that the evidence, when submitted, will be properly weighed, and that conservative judges may rule out much or all of the testimony. …

The Ethnobotany Of The Acoma And Laguna Indians, George R. Swank

Biology ETDs

The Indian lives close to nature and utilizes the plants which grow about him, and these uses differ among various tribes. In order therefore to understand the ethnobotany of any group of Indians it is necessary to know something of their history, customs, mythology, religion and medicine. Hence in treating the ethnobotany of the Acoma and Laguna Indians the above phases of their culture will be discussed as they relate to these two pueblos.

The Scaled Quail Of New Mexico, Paul Russell

Biology ETDs

Within the past thirty years much has been done by the New Mexico Game and Fish Commission for the protection and increase of Game. Market hunting is a thing of the past, as we have controlled seasons and bag limits. Species have been maintained and increased by establishing refuges and in some cases species reestablished by transplanting.

A Study Of Poverty And Dependency In Phelps County For 1931, Arthur Royal Powell

Masters Theses

"The Ozark Region of Missouri is rapidly undergoing a definite social and economic change. thru markedly improved methods of communication and transportation the eighteenth century culture of this region is being metamorphosed into a twentieth century culture. Where the Ozarker of a generation ago was a strongly individualistic frontiersman in his outlook on life, he is now in the process of becoming a citizen of a larger and more complex society. The telephone, the radio, and the concrete highway, together with the cheap automobile, have made the customs and many of the folkways and mores of the Ozark people obsolete, …

The A Series Of Allelomorphs In Relation To Pigmentation In Maize, R. A. Emerson, E. G. Anderson

Department of Agronomy and Horticulture: Faculty Publications

Introduction ... 503

The allelomorph A^b ... 504

The allelomorph a^p ... 505

Dominance ... 508

Summary ... 508

Literature Cited ... 509

Microfossils In An Arkansas Peat And Their Significance, Paul B. Sears, Glenn Couch

Papers in Ecology

This is an extension of a series of studies by one of the authors and his associates (1) on fossil pollen in peats of the North Central States. The purpose of such studies has been to secure information concerning the general trend of climate in postglacial time, as an aid in interpreting present vegetation.

These previous studies have indicated that postglacial climate has been largely of continental type, cool at first and later warm. Separating the cool dry from the warm dry period there appears to have been a definite although brief period of greater humidity, relative if not absolute. …

The Effect Of Sodium Chloride Upon The Fission Rate Within A Single Clone Of Paramecium Caudatum And The Heritability Of That Effect., Mary C. Adolph

Electronic Theses and Dissertations

No abstract provided.

The Distribution And Economic Significance Of The Genus Polygonum In Sacramento County Of California, Helen Keech Mccarthy

University of the Pacific Theses and Dissertations

The genus Polygonum belongs to the family of plants, the Polygonaceae, which includes about forty genera and seven hundred and fifty species. About two hundred end seventy-five of these belong within Polygonum. Scientists have also found distinctly recognizable fossil Polygonums which date from prehistoric ages. Dr. F. H. Knowlton¹ of the U. S. National Museum has listed twelve species which have been found in fossil form. While studying collection of Colorado fossil plants in the Geological Tunes et Columbia College, Small discovered a remarkably distinct Polygonum belonging to the subgenus Persicaria.