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Articles 251281 - 251310 of 256031

Full-Text Articles in Life Sciences

Bulletin No. 172 - The Value Of Barnyard Manure On Utah Soils, F. S. Harris Mar 1920

Bulletin No. 172 - The Value Of Barnyard Manure On Utah Soils, F. S. Harris

UAES Bulletins

New countries rarely appreciate the value of barnyard manure. It is not until the soil begins to be depleted of its fertility and the yield of crops begins to decline that manure is given the attention that its value justifies. In new countries it is not uncommon to see manure hauled into a rut in the road or left in scattered heaps along the roadside or the ditch bank. Often a year's accumulation of manure is drawn out of the barn or corral in scrapers and added to a pile containing the accumulation of previous years.


Bulletin No. 173 - The Duty Of Water In Cache Valley, Utah, F. S. Harris Mar 1920

Bulletin No. 173 - The Duty Of Water In Cache Valley, Utah, F. S. Harris

UAES Bulletins

The greater part of this bulletin is devoted to a report of experiments on the relation of the amount of irrigation water applied to the yield of crops. As the agriculture of Utah develops, it becomes more obvious each year that the chief factors limiting the production of crops is irrigation water. It is desirable, therefore, to have available all possible information on the subject. Water is so scarce that none should be wasted either directly or by attempting to spread it over so much land that it is not economically applied. Wasteful extravagance on the one hand and undue …


A Suggested Farm Entrance Sign For Advertising Purposes, Ralph L. Patty, Geo A. Starring Mar 1920

A Suggested Farm Entrance Sign For Advertising Purposes, Ralph L. Patty, Geo A. Starring

SDSU Extension Circulars

With the great increase in the number of farmers who are adopting names for their farmsteads, there is an accompanying desire for the erection of appropriate sign boards, entrance signs, or other devices of advertising value. The accompanying sketch and working plan are intended to show what may be done with ordinary building materials in erecting a sign that has good lines. Farmers who contemplate the putting up of two posts and a straight cross board may find in this suggestion something worthwhile. If the sign is worth erecting at all, why not put up one that is attractive? Many …


The Den: A Preliminary Report, With Map, Of A Tract Of Woodland Given To The School By Mr. And Mrs. Winthrop Perry., James W. Toumey, Ralph C. Hawley Mar 1920

The Den: A Preliminary Report, With Map, Of A Tract Of Woodland Given To The School By Mr. And Mrs. Winthrop Perry., James W. Toumey, Ralph C. Hawley

Yale School of the Environment Bulletin Series

In the autumn of 1918, through gift of Mr. and Mrs. Winthrop Perry, the School of Forestry came into possession of a number of closely connected parcels or woodland comprising over 1,300 acres in Farifield County Connecticut.

The purpose of the donors and conditions under which the gift was made are clearly stated....


Zu Psithyrus Vestalis Geoffr. Und Bohemicus Seidl (Distinctus Pérez) (Hym.)., Paul Blüthgen Feb 1920

Zu Psithyrus Vestalis Geoffr. Und Bohemicus Seidl (Distinctus Pérez) (Hym.)., Paul Blüthgen

Be

No abstract provided.


Bulletin No. 171 - Alfalfa Seed Growing And The Weather: With Particular Reference To Conditions In Utah, J. Cecil Alter Feb 1920

Bulletin No. 171 - Alfalfa Seed Growing And The Weather: With Particular Reference To Conditions In Utah, J. Cecil Alter

UAES Bulletins

The demand for alfalfa seed has far outrun domestic production. Since the labor and expense of producing the crop are light, and the profits attractive in favorable years, a desire is manifest wherever alfalfa is grown, to save a crop for seed whenever the meteorological elements favor its setting and maturing. Climate is generally acknowledged to be the limiting factor in alfalfa seed production, and the current weather the major factor affecting the yearly yields.


The Balanced Garden, Frank E. Mccall Feb 1920

The Balanced Garden, Frank E. Mccall

SDSU Extension Circulars

The body needs protein, carbohydrates, and fats in a quite well-defined ratio. This ratio can be most easily provided if balanced meals are served. It will be much easier to serve balanced meals if the foods containing the proteins, carbohydrates, and fats are produced in or near the right proportions. If the garden is depended upon for the bulk of the food supply, then the varieties grown should be selected upon this basis.


Hymenoptera Collected Near Boston, Mass., With Descriptions Of A Variety Of Bombus Affinis, Joseph Bequaert Feb 1920

Hymenoptera Collected Near Boston, Mass., With Descriptions Of A Variety Of Bombus Affinis, Joseph Bequaert

Ba

While collecting Hymenoptera at Forest Hills, Mass., and other localities in the vicinity of Boston, I have taken on two occasions a bumble-bee, which from its aberrant coloration could not be properly named with Franklin's "Bombidae of the New World." I have been permitted to examine similarly colored Bombus, taken some years previous by Professor Wheeler at Forest Hills and by Mr. J. E. Smith at Sherborn, Mass. It was finally recognized that all these specimens belong to a striking color-variant of Bombus affinis, which it is the purpose of this note to describe and name. I have used this …


Strawberries In Nebraska, C. C. Wiggans Feb 1920

Strawberries In Nebraska, C. C. Wiggans

Nebraska Agricultural Experiment Station: Historical Circulars

The strawberry is probably the most important small fruit grown in Nebraska. It thrives well in all sections of the State where the moisture supply is not too limited, being found almost universally in home plantings. It is also produced commercially in certain favored localities but this acreage is limited.


Eine Neue Deutsche Halictus-Art, J. D. Alfken Jan 1920

Eine Neue Deutsche Halictus-Art, J. D. Alfken

A

No abstract provided.


Andrena Enslini, Eine Neue Deutsche Andrena-Art, J. D. Alfken Jan 1920

Andrena Enslini, Eine Neue Deutsche Andrena-Art, J. D. Alfken

A

Gesicht Schwarz, in der Mitte, besonders zwischen den fuhlern gelblich beheart. Schlafen ziemlich breit, gelblich, am unteren Augenrande Schwarz beheart, Scheitel ebenfalls gelblich, vorn Schwarz beheart. Clypeus ziemlich weitlaufig and grob punktiert, die Punkte vorn zu Runzeln zusammenflieBend.


Circular No. 41 - Soil Alkali, F. S. Harris Jan 1920

Circular No. 41 - Soil Alkali, F. S. Harris

UAES Circulars

The farmer of the West is likely to be very much upset at the mention of alkali, mineral, or salt, in connection with his land. These various names are applied to a condition which he usually knows little about except that it is bad. The exact nature of the substances called by these names and the character of the injuy caused by them are very vague in his mind; but he knows that he wants nothing to do with alkali if he can help it.

The prevalence of alkali throughout the arid parts of the world makes it impossible for …


Ua94/6/1 Biology Notebook, Mildred Willian Jan 1920

Ua94/6/1 Biology Notebook, Mildred Willian

Student/Alumni Personal Papers

Biology notebook kept by Mildred Willian ca. 1920. Includes notes regarding different species and drawings.


On Scolia Bicincta Fab. And Scolia Undata Klug (Hymenoptera, Scoliidae), C. S. Brimley Jan 1920

On Scolia Bicincta Fab. And Scolia Undata Klug (Hymenoptera, Scoliidae), C. S. Brimley

Bo

No abstract provided.


Zum Problem Der Bienenzelle, Ludwig Armbruster Jan 1920

Zum Problem Der Bienenzelle, Ludwig Armbruster

An

Die der vorliegenden Arbeit zugrunde liegenden Untersuchungen und Beobachtungen fallen fast samtlich in die Jahre 1912 und 1913. Im Jahre 1913 war die Arbeit zum weitaus groBten Teil druckfertig. Die lange Zeit zwischen Abfassung und Drucklegung und all das, was dazwischen lag, hatte zur wenig erfreulichen Folge, daB die Korrektur sich schwierig gestaltete, da das Material an Notizen und Auszugen nur schwer mehr zusammenzubringen war, und daB die auslandische Literatur der Zwischenzeit nur mangelhaft verfolgt und verwertet werden konnte. Immerhin gewann ich dadurch Gelegenheit, die reiche Berliner Sammlung zu verwerten. DaB in der Zwischenzeit manches Sachdienliche zum Problem von anderer …


Notes On Some Diseases Of Aspen, Carl Hartley, Glenn G. Hahn Jan 1920

Notes On Some Diseases Of Aspen, Carl Hartley, Glenn G. Hahn

Aspen Bibliography

No abstract provided.


Notes Supplementaires Sur Les Bourdons De La Belgique, F. J. Ball Jan 1920

Notes Supplementaires Sur Les Bourdons De La Belgique, F. J. Ball

An

En 19l4, j'ai publié dans les Annales de notre Sociélé,Tome LVIII, une liste provisoire des Bourdons de la Belgique, !Jasée sur les col-lections qui se lrouvaieut à celle époque au Musée Hoyal d'Histoire Naturelle. A la sui le des chasses mélhodiques entreprises sous la direction du Jusée dans certaines localités représenlalives des diverses parties du pays, le matériel à notre disposition s'est con-sidérablemen l accru, el quoique l'élude de ce matériel soit loin d'être achevée,je crois le moment venu de soumeltre quelques notes au sujet des nouvelles variétés trouvées et des modifications qu'il y a lieu d'apporter dans la classification …


Beiträge Zur Kenntnis Deutscher Bienen, Paul Blüthgen Jan 1920

Beiträge Zur Kenntnis Deutscher Bienen, Paul Blüthgen

Be

No abstract provided.


Bulletin No 81 - The Improvement Of Pastures With Notes On The Pasture Trefoils In Western Australia, E. A. Mann, D. A. Herbert Jan 1920

Bulletin No 81 - The Improvement Of Pastures With Notes On The Pasture Trefoils In Western Australia, E. A. Mann, D. A. Herbert

Bulletins 1 - 2999

Agriculture can be roughly divided for practical purposes into two large divisions, those of animal husbandry and vegetable husbandry. It is with the former that this pamphlet is chiefly concerned and its object is to contribute, it possible, in some small measure towards the problem of how to increase time stock carrying capacity of our natural pasture lands. it is unnecessary to dwell upon the importance of this question, especially in relation to the remarkable developments which are taking place in time wool-growing industry in the Southern and more coastal areas of Western Australia.


Bulletin No 80 - Cultivation Of Sugar Beet, Percy G. Wicken Jan 1920

Bulletin No 80 - Cultivation Of Sugar Beet, Percy G. Wicken

Bulletins 1 - 2999

The beet belongs to the Chenopodiaceae or Salsolaceae, an order of plants which include among them many of the native saltbushes. The sugar beet (Beta vuigaris crassa) is supposed to have been developed from the wild beet (Beta vulgaris maritima), which is indigenous to the countries along the coast of Southern Europe. it is a biennial plant—that is, of two years' duration. The first year it produces a full-sized root, the second year it produces its seeds, and then dies off. Sometimes a few plants Produce seed the first year, but this is only on account of the seed being …


Observations On Cytospora Chrysosperma In The Northeast, E.E. Hubert Jan 1920

Observations On Cytospora Chrysosperma In The Northeast, E.E. Hubert

Aspen Bibliography

The weather conditions during the unusually dry summers of 1917, 1918, and 1919 were influential factors in the widespread and abundant appearance of Cytospora chrysosperma (Pers.) Fr. upon certain forest, shade and ornamental trees in the Northwest.


The Community Meat Ring, John M. Brander Jan 1920

The Community Meat Ring, John M. Brander

SDSU Extension Circulars

"Fresh meat regularly and at reasonable prices” is what a rural community in Douglas county has adopted as its slogan. To have fresh meat whenever desired from farm butchered livestock is too often considered practically impossible on account of the rather limited amount of fresh meat that a family could use before the meat spoils. To get it regularly from a butcher shop involves added time in addition to the fact that very high prices are charged. The salting, curing, smoking, and other methods of meat preservation are practiced to a certain extent by farmers throughout the country, but supplies …


Heritable Characters Of Maize Ii.-Pistillate Flowered Maize Plants, R. A. Emerson Jan 1920

Heritable Characters Of Maize Ii.-Pistillate Flowered Maize Plants, R. A. Emerson

Department of Agronomy and Horticulture: Faculty Publications

In the "freak"

class at the Annual

Corn Show held at Lincoln, Nebraska,

in the winter of 1913-14,

there was exhibited a corn tassel

with a heavy setting of seeds. A few

seeds are not infrequently found in the

staminate inflorescence of maize, particularly

in pod com, and tillers of various

corn varieties often end in ears instead

of in tassels or have tassels, the central

spikes of which are ear like. The freak

exhibited at the com show, however,

was a large. much branched affair.

wholly tassel-like in form except for the

fact that it bore a heavy crop …


The Bees Of Gold Hill, Colorado, T. D. A. Cockerell Dec 1919

The Bees Of Gold Hill, Colorado, T. D. A. Cockerell

Co

No abstract provided.


The Bees Of The Rocky Mountain National Park (Hymenop.), T. D. A. Cockerell Dec 1919

The Bees Of The Rocky Mountain National Park (Hymenop.), T. D. A. Cockerell

Co

No abstract provided.


The Bees Of Peaceful Valley, Colorado, T. D. A. Cockerell Dec 1919

The Bees Of Peaceful Valley, Colorado, T. D. A. Cockerell

Co

No abstract provided.


The Nebraska Tractor Law And Rules For Official Tractor Tests, L. W. Chase, E. E. Brackett, O. W. Sjogren, C. K. Shedd Dec 1919

The Nebraska Tractor Law And Rules For Official Tractor Tests, L. W. Chase, E. E. Brackett, O. W. Sjogren, C. K. Shedd

Nebraska Agricultural Experiment Station: Historical Circulars

The Nebraska Tractor Law, which became effective July 15, 1919, was enacted to encourage the manufacture and sale of improved types of tractors and to contribute to a more successful use of the tractor for farming. It was thought that the best method of accomplishing these objects would be to require a tractor of each model sold in the State to be tested at the State University and to have the results of these tests made public. These tests will give reliable information on the power, capacity and fuel consumption of each tractor and also some information on endurance. The …


Notes On North American Myxosporidia, Henry Baldwin Ward Dec 1919

Notes On North American Myxosporidia, Henry Baldwin Ward

Harold W. Manter Laboratory of Parasitology: Library Materials

In this paper are published data on three new species of Myxosporidia. Two species were observed in Lake Erie as parasites of a minnow; the third came from a species of Pacific salmon. Both cases present some unusual features that seem worthy of record.

Included are descriptions of Myxobolus aureatus nov. spec., Henneguya brachyura nov. sp., and Henneguya salminicola nov. spec.

I am greatly indebted to my colleague, Dr. Rokusaburo Kudo, for valuable assistance given while I was working up the material. The beautiful sketch illustrating the species from Lake Erie was prepared by Mrs. H. S. Jennings, to whom …


Relative Transpiration Of Coniferous And Broad-Leaved Trees In Autumn And Winter, J. E. Weaver, A. Mogensen Dec 1919

Relative Transpiration Of Coniferous And Broad-Leaved Trees In Autumn And Winter, J. E. Weaver, A. Mogensen

Department of Agronomy and Horticulture: Faculty Publications

Transpiration has been of special interest to many investigators for a long time. At first it was considered without reference to environmental factors, but later, as more observations were made and these factors were noted to have a marked effect upon the water loss, they were taken into consideration. Many of the data assembled have been limited to plants during the growing season, so that it has seemed profitable to obtain not only quantitative data on winter losses, but also a comparison of the relative transpiration of conifers and broad-leaved trees in summer and winter.


Fusarium Blight Of The Soy Bean And The Relation Of Various Factors To Infection, Richard O. Cromwell Nov 1919

Fusarium Blight Of The Soy Bean And The Relation Of Various Factors To Infection, Richard O. Cromwell

Nebraska Agricultural Experiment Station: Historical Research Bulletins

An investigation was outlined (1) to determine the parasitism of Fusarium on soy bean, (2) to establish its relationship to Fusaria of the section Elegans in so far as a comparison of the cultural characters permitted, and (3) by means of cross- inoculations and field studies to determine the relationship of this disease of soy beans to the wilt disease of cowpeas (Vigna sinensis Hassk.) caused by Fusarium tracheiphilum Smith. The results of these investigations up to the close of the summer of 1916 have been reported. The studies were continued at the North Carolina Experiment Station until the …