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Articles 239461 - 239490 of 250174

Full-Text Articles in Life Sciences

Habitat Of Red-Backed Vole, Harvey L. Gunderson Jan 1959

Habitat Of Red-Backed Vole, Harvey L. Gunderson

University of Nebraska State Museum: Mammalogy Papers

These data are a part of a study of small mammal populations at Cedar Creek Forest, Anoka County, Minnesota. The live-trapping area of 5.0 acres, with 81 traps spaced 52 feet apart, was in a tamarack-white cedar bog. The study extended over a period of 7 years (1949-1955). Trapping periods of five days (four nights) extended from early May to the first part of October. In all, there were 14,580 trap-nights. A total of 428 voles were marked and weighed; data on 25 dead unmarked individuals are also included.

A frequency index was calculated for each station. This index was …


Biotic Succession In A Douglas Fir Forest On Saddleback Mountain (Oregon Coast Range), Jane Claire Dirks-Edmunds Jan 1959

Biotic Succession In A Douglas Fir Forest On Saddleback Mountain (Oregon Coast Range), Jane Claire Dirks-Edmunds

Jane Claire Dirks-Edmunds Documents

This grant proposal, submitted to the National Science Foundation in 1959 by Dr. Jane Claire Dirks-Edmunds, requested funding to continue an ecological study at Saddleback Mountain. Dirks-Edmunds requested $15,570.05 to fund weekly trips with students to the site in order to collect meteorological and synecological data on the forest; she anticipated the project would last two years.

Dr. Dirks-Edmunds graduated from Linfield College in 1937; she returned to teach in the Biology department at Linfield from 1941-1974.


The Louisiana Forest Industry: Its Economic Importance And Growth, Floyd L. Corty Jan 1959

The Louisiana Forest Industry: Its Economic Importance And Growth, Floyd L. Corty

LSU Agricultural Experiment Station Reports

No abstract provided.


Some Aspects Of Printing Quality, Robert B. Badger Jr. Jan 1959

Some Aspects Of Printing Quality, Robert B. Badger Jr.

Paper Engineering Senior Theses

The object of this experiment was to find the effect of various pressures upon the ink coverage and the visual appearance of the half-tone print. A specially designed plate with four evenly spaced elevations was used with a Vandercook proof press. Various grades of paper were used. Results showed: a variation in the range of ink coverage due to the grade of paper and the number of lines of the half-tone; within the area of good printing a small change in pressure caused a large change in ink coverage; the change in ink coverage varied from elevation to elevation; an …


Comments On Species Recognition With Special Reference To The Wood Duck And The Mandarin Duck, William C. Dilger, Paul A. Johnsgard Jan 1959

Comments On Species Recognition With Special Reference To The Wood Duck And The Mandarin Duck, William C. Dilger, Paul A. Johnsgard

Papers in Ornithology

It is well known that closely related, sympatric species have evolved species-specific features which serve to minimize the possibility of "wrong" choices being made during pair formation. The amount of evolution of such species-specific features is roughly proportional to the deleterious effects of the "wrong" choices made in species recognition. Of course, if upon initial contact, the forms interbreed too freely panmixia will occur and both will eventually lose whatever genetic identity they may have had. On the other hand if, by the time of contact, the forms have incidentally developed differences sufficient to serve automatically as isolating mechanisms from …


Variability In The Electrophoretic Patterns Of Avian Serum Proteins, Charles G. Sibley, Paul A. Johnsgard Jan 1959

Variability In The Electrophoretic Patterns Of Avian Serum Proteins, Charles G. Sibley, Paul A. Johnsgard

Papers in Ornithology

It has been known for more than 50 years that particular proteins characterize every species of plant and animal and that phylogenetic relationships are reflected in protein structure. The first application of this fact to taxonomic studies was by Nuttall ( 1901; 1904) who used the precipitin reaction of immune sera to test degrees of relationship in over 500 species of animals. With refinements in technique have come many more serological studies and the results have justified the statement by Landsteiner (1945) that “chemical differences parallel the variation in structure” and hence are useful in classification.


South Dakota Horticulture, January/February 1959, State Horticultural Society Jan 1959

South Dakota Horticulture, January/February 1959, State Horticultural Society

North and South Dakota Horticulture

Volume 32, Number 1

"I Wish John Robertson Could Have Been Here"
Know Your Arboretums and Botanical Gardens
Hearts and Flowers Symbolize St. Valentine's Day
Who's Who on Horticulture-Forestry Staff at SDSC
Beekeeping Popular in S.D., Honey Output Climbs
Perennial Insect Pests of Woody Plants
National Convention to be in St. Louis
Scotts Bluff Meeting has Variety for Judgers
Mrs. Marion Scott, S.D. Silver Cup Winner
Book Reviews
Life in Russia Report Highlights 23rd Rocky Mountain Meet
Garden Club Gleanings
From the Compost Pile


Water Systems For The Farm, William Peterson Jan 1959

Water Systems For The Farm, William Peterson

SDSU Extension Circulars

Water under pressure is necessary on the modern farm. Probably more tons of water are needed than any other single product handled on the farm. Handling it automatically, with a pressure system, will save much work and time. Without water under pressure, animals often do not get enough water and production efficiency suffers. The home will be more sanitary if plenty of water, under pressure, 1s available.


Modern Meals: An "Inside" Story, Cleora Ewalt Jan 1959

Modern Meals: An "Inside" Story, Cleora Ewalt

SDSU Extension Circulars

No abstract provided.


Let's Begin Here: 4-H Project For Beginning Members, Agricultural Extension Service Jan 1959

Let's Begin Here: 4-H Project For Beginning Members, Agricultural Extension Service

SDSU Extension Circulars

No abstract provided.


Beekeeping In South Dakota, R.J. Walstrom, W.M. Hantsbarger Jan 1959

Beekeeping In South Dakota, R.J. Walstrom, W.M. Hantsbarger

SDSU Extension Circulars

Beekeeping has provided many persons with a satisfying and continually interesting hobby. To others it means a profitable sideline easily fitted to a farming or other full-time occupation. The commercial beekeeper finds that this phase of agriculture provides him with an independent and respectable way of making a comfortable livmg. The purpose of this bulletin is to provide persons who are interested in starting a few colonies of bees a source of basic information suited to Northern Great Plains conditions. South Dakota provides the essential natural ingredients for the production of sizable crops of high quality honey. Honey bees also …


Beekeeping In South Dakota, R.J. Walstrom, B.H. Kantack, W.L. Berndt Jan 1959

Beekeeping In South Dakota, R.J. Walstrom, B.H. Kantack, W.L. Berndt

SDSU Extension Circulars

Beekeeping has provided many persons with a satisfying and continually interesting hobby. To others it means a profitable sideline easily fitted to a farming or other full-time occupation. The commercial beekeeper finds that this phase of agriculture provides him with an independent and respectable way of making a comfortable livmg. The purpose of this bulletin is to provide persons who are interested in starting a few colonies of bees a source of basic information suited to Northern Great Plains conditions. South Dakota provides the essential natural ingredients for the production of sizable crops of high quality honey. Honey bees also …


Trees Of South Dakota, Paul Collins, L.L. Helwig Jan 1959

Trees Of South Dakota, Paul Collins, L.L. Helwig

SDSU Extension Circulars

No abstract provided.


Efficiency In Home Sewing, Anna Walker Jan 1959

Efficiency In Home Sewing, Anna Walker

SDSU Extension Circulars

Sewing can be fun and profitable for the family if the activity (home sewing) is kept as a part of the whole family-living picture.


Aboriginal Man And White Man As Historical Causes Of Fires In The Boreal Forest, With Particular Reference To Alaska, Harold J. Lutz Jan 1959

Aboriginal Man And White Man As Historical Causes Of Fires In The Boreal Forest, With Particular Reference To Alaska, Harold J. Lutz

Yale School of the Environment Bulletin Series

No abstract provided.


Agricultural Research In South Dakota: Seventy-Second Annual Report: July 1, 1958 - June 30, 1959, South Dakota State College Jan 1959

Agricultural Research In South Dakota: Seventy-Second Annual Report: July 1, 1958 - June 30, 1959, South Dakota State College

Agricultural Experiment Station and Research Farm Annual Reports

No abstract provided.


Dairy Club 1959, South Dakota State College Jan 1959

Dairy Club 1959, South Dakota State College

Dairy Digest

No abstract provided.


A Study Of The Manufacture Of Cultured Butter And Retail Store Sales In Brookings, South Dakota, Shirley W. Seas Jan 1959

A Study Of The Manufacture Of Cultured Butter And Retail Store Sales In Brookings, South Dakota, Shirley W. Seas

Electronic Theses and Dissertations

Butter consumption in the united stated had dropped to 8.4 pounds per capita in 1953 from approximately 17 pounds prior to World War II. There has been only a very slight increase during the last five years. Dairy industry leaders and research workers have south to find the reason for this situation and possible remedies for it. A recent consumer preference study conducted by Rollag and Krist Janson (21) in Brookings and Sioux Falls, South Dakota indicated a fairly strong preference for high quality butter with a considerable amount of flavor obtained by adding butter culture to the butter. The …


Design And Operation Of The Msu Tandem Tractor, Wesley F. Buchele Jan 1959

Design And Operation Of The Msu Tandem Tractor, Wesley F. Buchele

Wesley F. Buchele

A tandem tractor composed of two tractors hooked together and con­trolled from the rear tractor has been built at the Agricultural Engineering Department, Michigan State University. It was tested on sod, plowed, and plowed and disked land. Results indi­cate that the tandem tractor can pro­vide the farmer with a versatile power unit: one four-wheel drive tractor for pulling heavy loads; and two two-wheel drive tractors for pulling light loads.


Development Of A Recording Volumetric Transducer For Studying Effects Of Soil Parameters On Compaction, J. D. Hovanesian, Wesley F. Buchele Jan 1959

Development Of A Recording Volumetric Transducer For Studying Effects Of Soil Parameters On Compaction, J. D. Hovanesian, Wesley F. Buchele

Wesley F. Buchele

Increased research effort has been directed toward the solution of soil compaction problems in the past few years. Research workers dealing with these problems have been handicapped for at least the following four reasons: 1 Lack of definition and understand­ing of soil stress and soil compaction; a need for a suitable mathematical model 2 Lack of suitable recording equip­ment for measuring changes in soil physical phenomena, particularly soil compaction 3 Lack of basic engineering infor­mation about the mechanics of agri­cultural soils 4 Lack of adequate information showing the effect of certain parameters (soil moisture, soil type, and others) upon soil …


250 Irish Recipes: Traditional And Modern, Anon Jan 1959

250 Irish Recipes: Traditional And Modern, Anon

Pamphlets

On title page "the 250 recipes included in the following pages were specially chosen by a panel of chefs from among more than two thousand entries received for the competition organised by the Committee of the recent Irish Food Festival. They are published by kind permission of the Festival Committee as a unique contribution to Kitchen and Cellar Week, 1959"

Carries advertisements for Batchelors, Irish Transport and General Workers Union, Electricity Supply Board, Jacobs, Gresham Hotel, Knorr Soups, Merville Cream Ices Ltd., H. Griffin Ltd., J.J. Byrne Limited, An Bord Iascaigh Mara, Mount Salus Press Limited, Newbridge Cutlery, Calor Gas …


Observations On The Biology Of Pelomyxa Palustris Greeff, Collected Under Polysaprobic Conditions, Daniel Henry Stern Jan 1959

Observations On The Biology Of Pelomyxa Palustris Greeff, Collected Under Polysaprobic Conditions, Daniel Henry Stern

Master's Theses

Pelomyxa palustris Greeff, the largest rhizopod of which we have knowledge, was described in 1870 by Greeff who named the organism Pelobius. According to Penard (1902) it was redescribed by Archer in 1871 and reviewed. by Greeff (1874) who then gave it the name P. palustris.


Studies On Madinae: Anatomy, Cytology, And Evolutionary Relationships, Sherwin Carlquist Jan 1959

Studies On Madinae: Anatomy, Cytology, And Evolutionary Relationships, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Air Photographs For Your Teaching, Gerald Ahlquist Jan 1959

Air Photographs For Your Teaching, Gerald Ahlquist

Journal of the Minnesota Academy of Science

No abstract provided.


Structural Organization Of Forest Ecosystems, Egolfs V. Bakuzis Jan 1959

Structural Organization Of Forest Ecosystems, Egolfs V. Bakuzis

Journal of the Minnesota Academy of Science

No abstract provided.


A Study To Determine Optimum Plot Size For Progeny Testing Red Pine, George M. Blake Jan 1959

A Study To Determine Optimum Plot Size For Progeny Testing Red Pine, George M. Blake

Journal of the Minnesota Academy of Science

No abstract provided.


Studies Of The Kinetochore In Eleocharis Macrostachya Britt., James V. Bernardini Jan 1959

Studies Of The Kinetochore In Eleocharis Macrostachya Britt., James V. Bernardini

Journal of the Minnesota Academy of Science

No abstract provided.


The Ecological Effect Of A Preceding Crop On Smartweed In Flax, Thor Kommedahl, M. E. Tumbleson Jan 1959

The Ecological Effect Of A Preceding Crop On Smartweed In Flax, Thor Kommedahl, M. E. Tumbleson

Journal of the Minnesota Academy of Science

No abstract provided.


The Control Pollination Of Slash Pine, James T. Greene Jan 1959

The Control Pollination Of Slash Pine, James T. Greene

Journal of the Minnesota Academy of Science

No abstract provided.


Histogenesis Of Tilia Americana Embryos, William J. Peters Jan 1959

Histogenesis Of Tilia Americana Embryos, William J. Peters

Journal of the Minnesota Academy of Science

No abstract provided.