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Waterfowl Sex Ratios During Spring In Washington State And Their Interpretation, Paul A. Johnsgard, Irven O. Buss

Papers in Ornithology

Sex-ratio studies have received much attention from research workers in recent years. The contributions of Hochbaum (1944), Petrides (1944) and others have yielded considerable information on sex ratios in waterfowl; Beer (1945) and Yocom (1949) have presented data for the state of Washington. To interpret regional data on waterfowl sex ratios adequately, it is necessary to obtain a series of uninterrupted observations covering the entire migration period of the species concerned. In 1954, an ecologic study was conducted in the Potholes area, Grant County, central Washington (Johnsgard, 1956). During the period February 15 to May 16, sex-ratio data were collected …

Ixodid Ticks Of Ussr Fauna [Excerpt], G. V. Serdyukova

United States Naval Medical Research Unit 3: Publications

Key to Hyalomma

Males

Females

The Life Cycle Of Crassiphiala Bulboglossa (Trematoda: Strgeida): Development Of The Metacercaria And Cyst, And Effect On The Fish Hosts, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

The adult of Crassiphiala bulboglossa was described by Van Haitsma (1925) from the kingfisher, Ceryle alcycon. It can be differentiated from Uvulifer ambloplitis (Hughes, 1927), apparently its closest relative in North America, by the presence of a large bulbous holdfast occupying most of a cup-shaped forebody, and the absence of a ventral sucker. In U. ambloplitis the holdfast is small, the forebody is not cupped, and a ventral sucker is present. These species can be readily identified with the keys given by Dubois (1953).

Tannin Content Of English Walnuts : Thesis ..., Joseph G. Natoli

University of the Pacific Theses and Dissertations

Present methods for the production of leather from animal hides still depend from the most part on the use of natural tannin extracts. During the year, 1952, the amount of natural tannin extracts used by the leather industry was 560,452,119 pounds as compared to 35,793,000 pounds of synthetic tanning materials. It is not as yet possible to produce synthetic materials as economically as the natural extracts; the result being that there is still a very great demand for natural tannin extracts. The need for finding new domestic sources of tannins is apparent when the amounts of domestic and imported extracts …

Studies On Bucephalid Cercaria Including A New Species From The Dillon Beach Area, Donald Edward Giles

University of the Pacific Theses and Dissertations

The family Bucephalidae is unique in the class Trematoda by virtue of the mouth being situated near the mid-ventral portion of the body. Other characteristics of the family include: haptor near the anterior extremity; a simple, sac-like gut with pharynx and esophagus; genital pore ventral, just anterior to the posterior extremity; gonads posterior and vitellaria species live in the gut of marine and fresh-water fishes. The metacercariae are found encysted beneath the skin or in the nervous system of other fishes serving as second intermediate hosts. Sporocysts and cercariae have been recovered from a variety of lamellibranchs.

A generalized life …

Some Observations On Oral Protozoa Of Man, Howard Edwin Runion

University of the Pacific Theses and Dissertations

This investigation is based upon the occurrence of oral protozoans among 25 periodontalclasial patients in Stockton, California. It is concerned, in part, with the correlation of infections with age, sex and oral health of the host and, in part, with culture techniques. The specific cultivation of Trichomonas tenax was explored in an effort to employ an improved experimental medium.

Trichomonas tenax and Endamoeba gingivalis are the only protozoans known to occur commonly in the human mouth. Distribution is cosmopolitan and there are no known endemic areas. Incidence of these two protozoans, among periodontalclasial patients, has not been reported since the …

Ascidicolous Copepods Of Dillon Beach, California, David Horace Montgomery

University of the Pacific Theses and Dissertations

Work on the copepoda parasitizing anoidiens has been relatively extensive in Europe, loss so on the East Coast of the United States and negligible on the West Coast. of this work, a major portion has been concerned with the solitary ascidians, while the colonial or compound forms have been largely neglected. The apparent lack of interest in copepods parasitizing compound be attributed to the manliness of the animals, their associations with both Zooids and the colonial matrix which makes dissection difficult and the chaotic condition of their taxonomy.

The Effects Of Antibiotics Aureomycin And Terramycin On The Disease Crown Gall In Tomato Plants, Charles Raymond Anderson

Dissertations and Theses @ UNI

The disease crown gall manifests itself on various woody or herbaceous plants by the formation of tumor-like enlargements at the crown or on other parts or by extensive production of organs (roots, shoots). In both cases the abnormal development is an uncontrolled hyperplast, resulting in tumors or galls of varying sizes and form or in the production of organs, frequently out of normal position and in excessive numbers. Because of the frequent location of the galls on the stem or trunk near or at the ground level, the disease has been known as crown gall. Various other names such as …

Some Photographic Materials And Techniques For High School Biology Teachers, Robert L. Calentine

Dissertations and Theses @ UNI

Biology teachers in the smaller high schools are often confronted with the problem of securing sufficient classroom teaching material: charts, specimens, and reference books. A relatively inexpensive method of obtaining resource material would prove valuable to teachers confronted with this problem. Granting that actual study of specimens is of greater value than indirect methods, it is often helpful to have a supply of supplementary visual aids.

Handbook Of Bacteriology For High School Teachers, David Loring Fagle

Dissertations and Theses @ UNI

The study of bacteriology is frequently not included in the high school science curriculum and often, when it is taught, it is dealt with in only a superficial manner. There are various reasons for this. Very often high school science instructors lack training in courses relating to bacteriology and consequently, feel inadequate to handle the topic with their students. Another factor rests with the fact that bacteria are difficult to study without the aid or microscopes with high power objectives. Many high schools lack this equipment. A third factor is that some parents may feel that it may be dangerous …

Ladder-Back Called Variety Of Names, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Many Birds Winter In Swampy Areas, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Bird Banding Interest Grows, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Don't Shout! - I Can Hear!, Harold F. Schuknecht

Henry Ford Hospital Medical Journal

No abstract provided.

Preliminary Experience With The Glutamic Oxaloacetic Transaminase Determination In Acute Myocardial Infarction In Humans, Edward Mccall Priest, Donald G. Remp, Dan H. Basinski, Laurie Dickson

Henry Ford Hospital Medical Journal

No abstract provided.

Abstracts Of Recent Publications Of The Professional Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.

Occurrence And Distribution Of Hymenolepidid Cestodes In Shrews, Marietta Voge, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A survey of the literature dealing with cestodes of shrews reveals the increasing interest of contemporary parasitologists in this poorly known group of symbionts. In the United States, approximately 18 species have been described from shrews in the last 15 years. These reports deal almost exclusively with morphology of the cestodes; however, information on distribution, host specificity, rate and intensity of infection, is either fragmentary or not available in published form.

Townsend Solitaire Seen Here, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Cold Spell Points Up Birds' Plight, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Spotted Towhee Is Abundant In Area, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Birds Plentiful In Wintry Scene, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Growth Measurements Of Holstein Females From Birth To Seven Years, H. P. Davis, I. L. Hathaway

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Measurements of growth, to be meaningful, must be taken of various parts of the body, at regular intervals, under standardized environmental conditions, from birth through the growth span of the animal. From these measurements skeletal growth standards may be prepared for the several ages. Such standards can be used to measure growth at any age period. They will serve the research worker as a guide for experimental procedure and will provide the livestock raiser a basis with which his animals may be compared. Present standards of growth for dairy cattle are based mostly upon live weight, although considerable data are …

Kentucky Warbler (Vol. 31, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Farm Families And Social Security, Everett E. Peterson, Elton B. Hill

SDSU Extension Circulars

THE ORIGINAL Social Security Act of 1935 provided for several types of assistance, including old age· insurance for industrial workers. In 1939, this program was broadened to provide benefits for dependents and survivors. In 1950 some farm workers and domestic employees 3:nd many nonfarm self-employed persons were made eligible for this insurance. Beginning January 1, 1955, self-employed farmers and additional hired farm workers were included in this insurance program.

Bird Watchers See Rare Types, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Burrowing Prairie Owl Now Rare Here, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Birds Have Part In Yuletide Lore, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Home Chores Yield To Bird Watching, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Tiny Woodpecker Helpful To Trees, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

The “Sternum” In Necturus, Joseph P. Harris Jr.

Field and Laboratory

Recently, in order to arrive at a satisfactory answer to a moot question on the anatomy of the urodele, Necturus, I dissected 8 males and 5 females (varying in length from 25 to 39 centimeters). The problem involved was the existence or non-existence of cartilaginous inscriptiones tendineae in the myocommata of the ventral pectoral region; and the further question as to whether these cartilaginous elements, if generally found, are to be considered metamerized rudiments or sternebrae that have been arrested in their development (or, more loosely, constitute an ontogenetically-arrested sternum).