Digital Commons Network^™

New Records Of Bees From Natal, T. D. A. Cockerell

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No abstract provided.

The New Method In Diabetes, J. H. Kellogg

1910-1920

Book on the use of a plant-based diet in the treatment of diabetes. Includes sections on modern methods of examining and treating diabetes, as well as suggested recipes and menus to prepare for diabetics. Digitized with permission at the Library of Congress.

Some Japanese Bees, T. D. A. Cockerell

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No abstract provided.

Bulletin No. 149 - Breeding For Egg Production, Part Ii: Seasonal Distribution Of Egg Production With Especial Reference To "Winter" Egg Production, E. D. Ball, Byron Alder

UAES Bulletins

In this bulletin will be found a discussion of the seasonal distribution of egg production during first, second, and third, and later years of egg-laying of the same flocks of hens and a comparison of the distribution of production of high-laying and low-laying flocks in the same season, and different seasons as well as high-laying and low-laying individuals of the same flocks. These studies are based on six flocks of White Leghorn hens ranging from nine years to three years old and all descendants of a common flock. The methods of handling, feeding, and other details are discussed in previous …

X. Notes On Some British Guiana Hymenoptera (Exclusive Of The Formicidae)., G. E. Bodkin

Be

No abstract provided.

A Study Of The Vegetation Of Southeastern Washington And Adjacent Idaho, J. E. Weaver

University Studies (University of Nebraska) (1888–1984)

Noone at all botanically inclined can travel through southeastern Washington without being impressed with the marked changes which a distance of only a few miles may show in the vegetation. Traveling eastward from a point fifty miles west of the Idaho state line, one passes from a region of scab-land sagebrush through one of rolling hills covered with bunch-grasses. Upon steadily ascending the great Columbia Plateau, the 'bunchgrasses give way to well developed prairies, and these in turn, near the Idaho line, to forests of yellow pine, Douglas fir, white fir, tamarack, and cedar. Or starting from Spokane in the …

Aspen As A Permanent Forest Type, James M. Fetherolf

Aspen Bibliography

In an article on the "Stability of Aspen as a Type," published in the January, 1916, issue of the Proceedings of the Society, the author seems to infer that all aspen is temporary as a type, but refers to the prevalence of a different view in District 4 from that held by himself. In presenting this other view, I intend to bring out the more permanent features of aspen as a type. The importance of a clear understanding regarding this from the management and forestation standpoints is admittedly great. Any information that may be supplied or stimulus added to research …

A Study Of The Vegetation Of Southeastern Washington And Adjacent Idaho, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Introduction
Extent and position of area
Physiographic regions and geology
Soils
Topography and drainage
General plant-life conditions
General vegetational distribution
Outline of developmental series
Evaporatidn and soil moisture in relation to succession
Soil temperature in relation to succession
The prairie-plains formation
Agropyron-Festuca association
Festuca consociation
Agropyron consociation
Rhizocarpon-Lecidea associes
Gyrophora-Parmelia associes
Grimmia-Tortula associes
Poa-Polygonum associes
The desert scrub formation
Artemisia-Atriplex association
Artemisia consociation
The Pacific Coast forest formation
Thuja-Tsuga association
Symphoricarpos-Opulaster associes
Pinus-Pseudotsuga associes
Larix-Abies associes
Thuja consociation
Adsere Alnus-Salix associes
Subsere Natural reforestation in cut-over areas and in burns
Hydrosere
Chara-Potamogeton associes
Nymphaea-Potamogeton associes
Scirpus-Typha associes
Eleocharis-Carex associes
Wet …

Genetical Studies Of Variegated Pericarp In Maize, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

Two years ago there were presented some results of a study of the inheritance of self pattern in the pericarp of maize seeds, occurring as a sporophytic2 variation in variegated ears (EMERSON1 914). Further results, in entire accord with those previously reported, have now been obtained. In addition, data bearing upon new phases of the problem are also available.

The chief results reported in the earlier paper were the following: ( I ) The more nearly self-colored the pericarp of any seed of a variegated ear, the more likely is the progeny of that seed to produce a self-colored ear …

Amiotic Parthenogenesis In Taraxacum Vulgare (Lam.) Scrk. And Traxacum Laevigatum (Willd.) Dc., Paul B. Sears

Papers in Ecology

The work of which the results are here offered, awaiting detailed presentation in a paper to follow, was begun at the University of Nebraska in 1914, under the direction of the late Dr. Charles E. Bessey. The two species of dandelion which have been studied are respectively the Leontodon taraxacum and the L. erythrospermum of the Second Edition of Britton and Brown's Illustrated Flora: the nomenclature used in the title of this paper has been adopted on the basis of evidence presented in the monograph of the genus Taraxacum by Handel-Mazetti.

Some Carpenter Bees (Hym.), T. D. A. Cockerell

Co

No abstract provided.

The Panurgine Bees Of The Genera Hesperapis, Zacesta And Panurgomia, T. D. A. Cockerell

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No abstract provided.

Circular No. 23 - The Seed Situation In Utah, George Stewart

UAES Circulars

Due to the use of poor seed, the farmers of Utah lose yearly many thousands of dollars. Often single farms suffer to the extent of several hundred dollars. The most regretable and yet the most hopeful thing about the seed situation is that these losses are largely preventable.

Abundant area of unoccupied public lands have hitherto been within the reach of practically any wide-awake tiller of the soil. The farmer was more nearly sure of larger hay tacks and more bushels of grain or potatoes if he doubled the size of his fields than if he attempted more thorough cultivation. …

Bulletin No. 148 - Breeding For Egg Production: Part 1, A Study Of Annual And Total Production, E. D. Ball, Byron Alder, A. D. Egbert

UAES Bulletins

The average annual egg production of different breeds of fowls, the production that may be expected under different environmental conditions, the average length of life, the total probable production of an individual and the distribution of this production through the life cycle, are all subjects of vital importance to every poultryman. They are also subjects upon which there must be reliable information before accurate breeding work can be carried on. A search through the literature shows that information on all these subjects is extremely meagre.

On The Occurance Of Vespa Austriaca Panzer In The Northeastern United States, Joseph Bequaert

Ba

There are many facts in the taxonomy and still more in the life-histories of the common American wasps (Vespa) which need a thorough revision. The following small contribution is made with the hope of interesting other entomologists in the subject. During the last summer, the .writer made a point of capturing all the specimens of wasps he met with on his collecting trips, but the result as a whole was very poor, 1916 apparently not being a wasp-year. However, amongst the catch were found two females which he was unable to refer to any of the species previously known from …

Notes On Some Nematodes From Fresh-Water Fishes, Henry Baldwin Ward, Thomas B. Magath

Harold W. Manter Laboratory of Parasitology: Library Materials

The parasitic nematodes are of conspicuous importance in the field of human disease and also in diseases of the domestic animals, and in his treatise on fish diseases, Hofer (1906), discussing the significance in fish culture of parasites and parasitic disease5, states that among them the nematodes outrank all others in number of types. Yet as fish parasites these forms are almost unknown in North America, and references to them are confined to a few brief notes, almost all of which came from the pen of the distinguished Philadelphia microscopist, anatomist, and parasitologist, Joseph Leidy, whose pioneer work published between …

Circular No. 22 - Some Sources Of Potassium, C. T. Hirst, E. G. Carter

UAES Circulars

The essential elements of plant food are ten in number. Of these carbon and oxygen are obtained by the plant from the air, and hydrogen from the water. Sulphur, calcium, iron and magnesium are required by plants in small quantities and are not likely to be deficient in soils. The three remaining ones--nitrogen, phosphorus, and potassium--are likely to be present in soils in smaller quantities and are used by plants in larger amounts than any of the other elements taken from the soil. In addition to these ten elements already named, five other elements, viz., silicon, aluminum, sodium, chlorine, and …

Contributions Toward A Monograph Of The Mutillidae And Their Allies Of America North Of Mexico Iii. The Mutillidae Of The Eastern United States, James Chester Bradley

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No abstract provided.

North And South: A Magazine Published For The Northern Farmer, Trucker, Horticulturist, Gardener, Dairyman, Stockman And Poultryman, Describing The Resources Of The South, Kentucky Library Research Collections

Research Collections

This issue spotlights Kentucky with a brief history and photos; shown are Elmendorf cattle, horses, silos and barns, Hampshire sheep, Maple Grove Hog farm, concrete bridge in Woodford County, Central Lincoln road, tobacco, McKee Brothers farm, Falmouth Dairy, Nicholls Dairy, Hemp production, Campbellsville Turkeys, strawberry fields in Bowling Green, Ginseng near Cave City and Sunnyside Dairy.

The Carpenter-Bees Of The United States Of The Genus Xylocopa, Arthur J. Ackerman

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This paper forms the major part of a thesis for the degree of master of science at the Massachusetts Agricultural College, and it has been prepared under the supervision of Dr. H. T. Fernald. It is an endeavor to make more easy the identification of the bees of this genus.

The Ceratinid Bees Of The Philippine Islands, T. D. A. Cockerell

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No abstract provided.

Bulletin No. 146 - The Irrigation Of Wheat, F. S. Harris

UAES Bulletins

The economical use of irrigation water is one of the chief problem of agriculture in arid region. Much more land is available than can be irrigated by the supply of water even then methods of greatest economy are employed. The total crop of arid regions is therefore limited not by land but by water and the welfare of the regions demand that the irrigation water be used as efficiently as possible.

Bulletin No. 145 - Soil Alkali Studies: Quantities Of Alkali Salts Which Prohibit The Growth Of Crops In Certain Utah Soils, F. S. Harris

UAES Bulletins

One of the most important questions connected with the alkali problem in arid soils is the determination of the limits of toxicity of the various alkali salts. The author has already presented considerable data on this subject; but most of these results were obtained under laboratory conditions and with the use of pure salts. The combinations of salts used were not necessarily the combinations found in actual field conditions. It seemed desirable, therefore, to extend these studies to the field in order to determine the exact concentration of the various alkalis that prohibits growth in crops. A study of this …

A Physiological Study Of Two Strains Of Fusarium In Their Causal Relation To Tuber Rot And Wilt Of Potato, George K. Link

Nebraska Agricultural Experiment Station: Historical Research Bulletins

1. Fusarium tuberivorum Wilcox and Link is the same as Fusarium trichothecioides Woll. 2. Both Fusarium oxysporum and F. trichothecioides can produce both tuber rot and wilt of the potato plant. 3. The wilt is induced by destruction of the root system and by clogging of the xylem elements in the stem, and is, in mild cases, marked by such symptoms as discoloration of leaves, curling and rolling of leaves, and production of aerial tubers. 4. Under field and storage conditions Fusarium oxysporum is more probably responsible for wilt than is F. trichothecioides, and the latter more responsible for …

Notes On Two Free-Living Larval Trematodes From North America, Henry Baldwin Ward

Harold W. Manter Laboratory of Parasitology: Library Materials

Summary

A description is given of the structure and activity of two new cercariae of peculiar type captured free in Lake Erie and Lake St. Clair. They are designated Cercaria anchoroides nov. spec. and C. gorgonocephala nov. spec., and are compared with known European species. Although such an occurrence must be common, these forms are the first to be taken in open fresh waters.

On The Anatomy And Relationships Of Some North American Trematodes, Horace Wesley Stunkard

Harold W. Manter Laboratory of Parasitology: Library Materials

Summary

Extended study of North American representatives of the three trematode families, Polystomidae, Aspidogastridae, and Paramphistomidae has made possible the first comprehensive treatment in this country of their structure and classification. Four new species are added to the genus Polystoma and three new species of two new genera are added to the Paramphistomidae.

Bulletin No. 147 - The Alkali Content Of Irrigation Water, Robert Stewart, C. T. Hirst

UAES Bulletins

In certain irrigated districts the alkali problem is a menace. Any controllable factor which tends to increase the alkali content of the soil should be carefully considered in a successful system of soil management. In this connection the quality of the irrigation water is of great importance; the saline content of water has a marked influence upon the method and quantity to be used for irrigation. The factors which will contribute to an increase or decrease of the alkali content of the water must be clearly understood. The amount of the several kinds of alkali salts added to the soil …

The Keene Forest: A Preliminary Report, J. W. Toumey, Ralph C. Hawley

Yale School of the Environment Bulletin Series

In 1913 the Yale School of Forestry came into possession of certain parcels of land located near Keene, New Hampshire. This land amounting to 629.4 acres was presented to the School as a nucleus for a school forest to be used for purposes of instruction and research. Subsequently in March, 1915, additional lots comprising 270.9 acres were purchased with funds contributed by the original donor. The present area totals 900.3 acres and is know as the "Keene Forest."

Contributions Toward A Monograph Of The Mutillidae And Their Allies Of America North Of Mexico I. A Revision Of Ephuta Say, A Genus Of Mutillidae Equivalent To The Species Group Scrupea Of Fox, James Chester Bradley

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No abstract provided.

Contributions Toward A Monograph Of The Mutillidae And Their Allies Of America North Of Mexico Ii. A Revision Of Timulla Ashmead, A Subgenus Of Mutilla Equivalent To The Species Group Hexagona Of Fox, James Chester Bradley

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No abstract provided.