Life Sciences Commons^™

Bulletin No. 297 - Pale Western Cutworm, C. J. Sorenson, H. F. Thornley

UAES Bulletins

THE PALE WESTERN CUTWORM ( Agrotis orthogonia Morr.) has caused periodic damage to dry-farm grains in Utah during the past 25 years. In the spring of 1916, entomologists of the Utah Agricultural Experiment Station were asked to determine the cause of large bare spots occurring in fields of fall-planted wheat in the Indianola district of Sanpete County. A moderately severe infestation of pale western cutworm was found to be the causative agent. Pack reported that during the spring of 1929 this insect had inflicted serious damage to fall wheat at Fairview, Sanpete County.

North And South Dakota Horticulture, June 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 6

The Wood Pewee, O.A. Stevens
Newslants, H.A. Graves
Planting Annuals Outdoors, Mrs. C.E. Finkle
Manitoba News Letter, W.R. Leslie
June Garden Notes, W.E.H. Porter
Secretary's Corner, W.A. Simmons
Fruit & Vegetable Notes, F.X. Wallner
Beekeeping Notes, J.A. Munro
Book Reviews, Mrs. F. Briley & O.A. Stevens
President's Corner, H.E. Beebe
Questions & Answers, L.L. Davis

The Geographic Distribution Of Azotobacter And Rhizobium Meliloti In Nebraska Soils In Relation To Certain Environmental Factors, H. B. Peterson, T. H. Goodding

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In this investigation a survey of Nebraska soils has been made in order to determine the distribution of the aerobic nonsymbiotic and symbiotic nitrogen fixers of the genera Azotobacter and Rhizobium respectively. In connection with this survey, some of the characteristics of the soils which may bring about this distribution were studied. Up to this time practically no research has been reported on the microflora of the soils of Nebraska. Hence there is little basis for predicting the activity of these organisms under environmental conditions as they exist here. It is hoped that this work will not only supply some …

The Effect Of Fomes Ignarius On Populus Tremuloides In The Gallatin National Forest Of Montana, Marvin F. Kelly

Aspen Bibliography

No abstract provided.

Regeneration Of Native Midwestern Pastures Under Protection, J. E. Weaver, W. W. Hansen

Department of Agronomy and Horticulture: Faculty Publications

The origin of native midwestern pastures from virgin prairie and the degeneration of the prairie under long-continued grazing have been outlined in some detail in a previous bulletin (Weaver & Hansen 1941). During the last four years much study has been given to the converse phenomenon of the regeneration of native midwestern pastures when grazing animals were excluded. This universal phenomenon of the return of vegetation to something of its former natural condition is summed up in the term plant succession (Clements 1928). In connection with pastures derived from true prairie, it is of great practical as well as scientific …

A Taxonomic And Distributional Study Of Simuliidae Of Western United States, George S. Stains

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Simuliidae, usually called black-flies or buffalo gnats, are abundant both as individuals and species in many parts of the western United States. The present study of this family was undertaken (1) because of the extensive annoyance caused to livestock, wild life, and man by the blood-sucking females, (2) because certain disease pathogens are known to be transmitted during the feeding process, and (3) because the species and distribution of these economically important pests are so incompletely known in the West.

The Life History Of Side-Oats Grama Grass And Variations In Its Growth At Hays, Kansas, When Grown From Seed Produced In Different Parts Of The Great Plains Region, Harold Hopkins

Master's Theses or Doctor of Nursing Practice

This study, which covered a period of two years, was originated in order to learn more of the merits and faults of side-oats grama grass as a revegetation and soil conservation plant in the Great Plains Region. It was suggested by the fact that there is a definite need for more knowledge about the native grasses which are potential revegetation plants of the Great Plains. An attempt was made to find as many growth habits of the species as possible, and a comparison was made in the growth, development, and forage production of plants grown from seed produced in different …

The Economic And Physiological Significance Of The Effect Of Rootone On Dutch White Clover, Mary Alice Lord

Biology Honors Papers

This 35 page thesis examines the effect of the synthetic growth hormone Rootone on the Dutch White Clover plant.

A Discussion Of Multicolor Stains, Bryce C. Cochran

Biology Honors Papers

This 13 page thesis discusses the need for staining in histological procedures and examines the use of multicolored stains to identify tissues and parts of cells.

The Effects On Rye And Alfalfa Of Magnesium, Calcium, And Potassium Deficiencies In Regard To The Presence Or Absence Of Rootone, Alice Glancy

Biology Honors Papers

This 12 page thesis outlines an experiment to correlate possible relationships between magnesium, calcium, and potassium and the commercial plant hormone mixture Rootone.

The Finishing Of The Stained Slide: A Discussion Of The Various Mounting Media And A Brief Excursion Into The Newer Substitutes For Cover Glasses, Jean Clawson

Biology Honors Papers

This 32 page thesis examines steps in the preparation of microscopic slides, the choice and history of various slide media and substitutes for cover glasses.

Fetal Ossification And Staining In The Chick Embryo, Felix E. Karpinski Jr.

Biology Honors Papers

This 32 page thesis examines fetal ossification and staining in the chick embryo, including development, incubation, formation of the mesoderm and skeleton and methods for removal and fixation.

Artificial Parthenogenesis In Rana Pipiens, Frank A. Lippi Jr.

Biology Honors Papers

This 39 page thesis provides a history of artificial parthenogenetic experiments and examines the technique by using frogs' eggs.

North And South Dakota Horticulture, May 1941, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 14, Number 5

The Phoebe, O.A. Stevens
Newslants, H.A. Graves
New Apple Seedlings, Dr. N.E. Hansen
Manitoba News Letter, W.R. Leslie
President's Corner, H.E. Beebe
May Garden Notes, W.E.H. Porter
Fruit & Vegetable Notes, F.X. Wallner
Secretary's Corner, W.A. Simmons
Questions & Answers, L.L. Davis
Book Reviews, Mrs. F. Briley

Dr. Benno Matthes: An Early Texas Herpetologist, S. W. Geiser

Field and Laboratory

Texas has long been known as the herpetologist's paradise. A large number of species are distributed through the great distances from Amarillo to Brownsville, and Texarkana to El Paso. Naturalists have collected reptiles for many years in the State; and Texan species are in museums throughout the world.

Stability Of Boulders On Slopes In The Finlay Mountains, Texas, Ben R. Howard Jr.

Field and Laboratory

In a recent note the writer and his associates showed that Indian petroglyphs might be used as criteria to indicate the stability of boulders resting on relatively steep slopes. Space did not permit a full account of the data which led to this suggestion. Accordingly, it is the purpose of this paper to amplify these data with a more complete description.

An Indian Camp Site In The Northern Finlay Mountains, Hudspeth County, Texas, Keith F. Walker, David W. Trexler

Field and Laboratory

During the summer of 1939 a geological field class from Southern Methodist University, working in the Finlay Mountains of Hudspeth County, Trans-Pecos Texas, was impressed by the number of old Indian camp sites. The following summer the authors on a similar trip to the same area were able to spend several days in studying one of these.

Geology Of The Eagle Spring Area, Eagle Mountain, Hudspeth County, Texas, J. Fred Smith Jr.

Field and Laboratory

The Eagle Spring area is on the northern flank of Eagle Mountain, a dissected mountain mass with a maximum elevation of 7,512 feet in southeastern Hudspeth County, Trans-Pecos Texas It is included on the Sierra Blanca and Eagle Mountain topographic quadrangles of the United States Geological Survey. Although the region includes only a small area, it is important geologically because it apparently has the same stratigraphic and structural relations to be found in the larger area of Eagle Mountain. It is on the northern border of the folded and thrust-faulted province that extends to the south into Mexico and to …

Analysis Of Rocky Mountain Mule Deer Kill Records Of Five-Year Deer Removal From The Logan River Drainage Of Northern Utah, Wilmur Bartels

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Checking stations operated during the deer hunting season serve a two-fold purpose. It has long been recognized that such inspection stations aid greatly in the enforcement of hunting laws through the detection of illegal practices, and in many cases have been set up with this as a primary purpose. A more far reaching objective, however, is the collection of information to aid in the solution of the problems of maintenance of the range and the deer herd, and determination of the quality and quantity of the deer removal.

Wool Scouring Tests In Utah, Alma C. Esplin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wool as it is shorn from the sheep, is known as grease wool. The first step in the manufacturing of wool is scouring, or removal of all grease and foreign matter. Within any given grade, as determined by length of staple and fineness of fiber, the yield of clean wool is the primary factor in determining the value of the original grease wool. The price of scoured or clean wool is multiplied by the percentage yield of clean wool to determine the value of the grease wool.

Lerodea Tyrtaeus (Ploetz), New To The United States (Lepidoptera, Rhopalocera, Hesperiidae), H. A. Freeman

Field and Laboratory

On March 22, 1940, a female Lerodea tyrtaeus (Ploetz) was caught by the writer one mile north of West Columbia, Brazoria County, Texas.

A Celestial Globe, John D. Boon

Field and Laboratory

Nature is deceptive. Things that appear to be true are often untrue. This point is well illustrated in the science of astronomy. The history of astronomy is strewn with rejected theories that were once held by wise men. Even today many false theories that should have been discarded long ago are believed by many people. Why is this true?

Buried Hearths And Pottery In Alluvium Of The Finlay Mountains, Texas, Robert B. Mcconnell, J. J. Crim Jr.

Field and Laboratory

In the summer of 1940 hearths and artifacts were found buried in alluvium in the western Finlay Mountains of Texas. The sites occur along the banks of Campagrande Draw, approximately at 31° 24' north latitude, and 105° 37' 30" west longitude.

Studies On The Food Habits And Behavior Of The Thirteen-Lined Ground Squirrel (Citellus Tridecemlineatus Tridecemlineatus (Mitchell)) In The Laboratory, Mary Elizabeth Schmitt

Bachelors’ Theses

The scientific name first applied to the thirteen-lined ground squirrel was Scuirus tridecemlineatus by Mitchell in 1821. The same species has also been referred to as Spermophilus tridecemlineatus. At the present time it is recognized as belonging to the genus Cltellus and the species is divided into geographical races. Most of the middle western part of North America is the natural habitat of the thirteen-lined ground squirrel — Cltellus tridecemlineatus tridecemlineatus. So greatly have they increased with the expansion of cultivated areas and so vast is their destruction to growing crops that they have created a situation that must be …

Studies Of The Histology Of The Digestive System Of The Reptiles, Dorothy Ruth Marie Kaduck

Bachelors’ Theses

The normal histology or the Vertebrates as a group is not as wall known as is generally supposed, and in many cases we find that our meagre knowledge rests upon uncertain investigations and vague generalized studies. Among all of the classes· of Vertebrates, with the possible exception of the Pisces, the Reptilia represent the major gap in our information.

The Development Of The Sporangium Of Aspidium (Cyrtomium) Falcatum, Rita Thorpe

Bachelors’ Theses

It is the purpose of the writer in this thesis, to describe the development of the sporangium of Aspidium (Cyrtomium) falcatum, and to observe some of the cytological features of the sporogenous cells.

The Effects Of A Carbohydrate Deficient Diet On The Mouse, Walter Rudolph Sala

Bachelors’ Theses

Deficient diets have been used extensively as the basis for zoological experiments concerning the metabolism, and dietary requirements of individual animals. The majority of this work has been carried on with the rat as the subject, and resulting external physical variations as the experimental aim. The writer used the mouse as his subject, but, since no literature was available concerning this animal, a few similar experiments performed on the rat will be cited.

The Direct Action Of Ovarian Follicular Hormone On The Uterus And Appendages Of The Mouse, William L. Backus

Bachelors’ Theses

The investigation dealt with the direct action of ovarian follicular hormone, ESTROLIN, on the uteri, the oviducts, and the ovaries of normal female albino mice.

The Thorax Musculature Of The Tenebrio Molitor, Francis L. Boyle

Bachelors’ Theses

Very little, if any, work has been done on the thorax musculature in · the larvae stage of insects. The work that has been done has been confined mostly to the muscles of the abdominal region. From this work it has been found that extraordinary differences in muscle pattern occur often between larvae and adult stages of the same species. Since the muscles of all insects are more or less comparatively the same, what is true of one .will be generally true of another. There may be slight variations found between the abdominal segments and head segments but these differences …

A Study Of The Development Of The Mitosis And The Chromosome Count In Tropaeolum Majus L., Kenneth B. Eggert

Bachelors’ Theses

Toranosuke Sugiura (1926) published a study on Meiosis in Tropaeolum majus L in which he found the number of chromo­somes in the pollen mother cells to be 14. In the post­ synaptic phase, there were four aired chromosomes forming long rods. The other univalent ones formed shorter rods of irregular form.