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Full-Text Articles in Life Sciences
Bulletin No. 106 - A Study Of The Production And Movement Of Nitric Nitrogen In An Irrigated Soil, Robert Stewart, J. E. Greaves
Bulletin No. 106 - A Study Of The Production And Movement Of Nitric Nitrogen In An Irrigated Soil, Robert Stewart, J. E. Greaves
UAES Bulletins
The problem of maintaining the nitrogen content in our agricultural soils is one of vital importance to the development of a permanent system of agriculture. Any investigation, therefore, which tends to throw any light on the conditions which are necessary for maintaining the maximum supply of nitrogen in our soils needs no apology for its institution.
Bulletin No. 107 - Improvement Of Utah Horses, John T. Caine Iii, H. J. Frederick
Bulletin No. 107 - Improvement Of Utah Horses, John T. Caine Iii, H. J. Frederick
UAES Bulletins
Horse breeding in Utah, with some exceptions, has been carried on in a hap-hazard manner, and unsound horses of doubtful breeding have been purchased at high prices and have proven of little value. Where good blood has been introduced the temporary improvement has been marked, but as this work has not been followed up with care, results have not been lasting.
In spite of bad breeding, however, the standard of Utah horses has been advancing so that in western markets they command high pries. The climate, soil, feed and general conditions throughout the state make it an ideal place for …
New North American Bees, T. D. A. Cockerell
Descriptions And Records Of Bees.—Xxiii., T. D. A. Cockerell
Descriptions And Records Of Bees.—Xxii., T. D. A. Cockerell
Hymenoptera Paraguayensis, Juan Bréthes
Bouwstoffen Voor De Hymenopteren-Fauna Van Belgie, Joseph Bequaert
Bouwstoffen Voor De Hymenopteren-Fauna Van Belgie, Joseph Bequaert
Ba
In mijne beide vorige mededeelingen over de belgische Hymenoptera, gaf ik een zeer beknopt overzicht der genera van de meeste onzer inheemsche Aculeata en drukte tevens de hoop uit later een volledig overzicht der Belgische soorten uit deze groep in het licht te geven. Op een volledige naamlijst onzer vliesvleugelige insecten zal men ongetwijfeld nog lange jaren wachten, te meer daar zulk werk niet door een enkel onderzoeker kan opgemaakt worden, maar de vereenigde krachten van velen zal vereischen.
Bulletin No. 105 - Factors Influencing Evaporation And Transpiration, John A. Widtsoe
Bulletin No. 105 - Factors Influencing Evaporation And Transpiration, John A. Widtsoe
UAES Bulletins
The irrigation investigations conducted by the Utah Experiment Station, some of the results of which form this *report, were undertaken for the purpose of adding to our knowledge of the natural laws upon which the art of irrigation may be safely built. The work has had for its dirrect object the study of the mutual relations of plants, soils and water, as these relations may indicate the most economic use of water for plant production. In pursuit of the investigations it became necessary not only to follow the movement of water in soils under irrigation conditions, but to determine also …
Descriptions And Records Of Bees.—Xxi., T. D. A. Cockerell
A Monographic Revision Of The Coleoptera Belonging To The Tenebrionide Tribe Eleodiini Inhabiting The United States, Lower California, And Adjacent Islands, Frank E. Blaisdell Sr.
A Monographic Revision Of The Coleoptera Belonging To The Tenebrionide Tribe Eleodiini Inhabiting The United States, Lower California, And Adjacent Islands, Frank E. Blaisdell Sr.
Be
No abstract provided.
Some Anthidiine Bees, T. D. A. Cockerell
Three New Anthophorid Bees From Texas, T. D. A. Cockerell
Studies In Oxybelidae I, Carl F. Baker
Studies In Oxybelidae I, Carl F. Baker
An
Having been engaged for many years in the collection and study of material in this family, such results as have been obtained will now be published from time to time. A provisional table of the genera is presented herewith. Dr. Brauns has kindly sent a specimen of his South African Oxybelomorpha. It is evidently closely related to Oxybelus, but possesses mandibles deeply emarginate below. The sub-median cell is much shorter than the median, the transverse median nervure uniting with the median much before the origin of the larval nervure; but this condition occurs also among some of our American Oxybelus. …
Descriptions Of Some Bees In The U.S. National Museum, T. D. A. Cockerell
Descriptions Of Some Bees In The U.S. National Museum, T. D. A. Cockerell
Ca
No abstract provided.
Two New Bees Of The Genus Perdita, Visiting Baileya In New Mexico, T. D. A. Cockerell
Two New Bees Of The Genus Perdita, Visiting Baileya In New Mexico, T. D. A. Cockerell
Ca
No abstract provided.
Descriptions Of Tertiary Insects. Part Vi., T. D. A. Cockerell
Descriptions Of Tertiary Insects. Part Vi., T. D. A. Cockerell
Ca
No abstract provided.
On Some Undescribed Bees And Wasps Captured By Lieut.-Colonel C. G. Nurse In India, Peter Cameron
On Some Undescribed Bees And Wasps Captured By Lieut.-Colonel C. G. Nurse In India, Peter Cameron
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No abstract provided.
Some New Bees, And Other Notes, T. D. A. Cockerell
Two Fossil Bees, T. D. A. Cockerell
A Catalogue Of The Generic Names Based On American Insects And Arachnids From The Tertiary Rocks, With Indications Of The Type Species, T. D. A. Cockerell
A Catalogue Of The Generic Names Based On American Insects And Arachnids From The Tertiary Rocks, With Indications Of The Type Species, T. D. A. Cockerell
Ca
No abstract provided.
Alfalfa In Cultivated Rows For Seed Production In Semiarid Regions, Charles J. Brand, J. M. Westgate
Alfalfa In Cultivated Rows For Seed Production In Semiarid Regions, Charles J. Brand, J. M. Westgate
Bo
No abstract provided.
A New Bee Of The Genus Halictus From The Argentine, T. D. A. Cockerell
A New Bee Of The Genus Halictus From The Argentine, T. D. A. Cockerell
Ca
No abstract provided.
Description Of A New Parasitic Bee (Nomada) From Borneo, Peter Cameron
Description Of A New Parasitic Bee (Nomada) From Borneo, Peter Cameron
Bu
No abstract provided.
On Some Undescribed Indian Bees (Tetralonia, Megachile And Halictus) (Hym.), Peter Cameron
On Some Undescribed Indian Bees (Tetralonia, Megachile And Halictus) (Hym.), Peter Cameron
Bu
No abstract provided.
Die Nestanlage Von Xylocopa Frontalis Oliv., A. W. Bertoni, C. Schrottky
Die Nestanlage Von Xylocopa Frontalis Oliv., A. W. Bertoni, C. Schrottky
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Trotzdem unter den südamerikanischen Bienen die Xylocopaarten zu den häufigsten Erscheinungen gehören, ist über ihre Lebensweise noch sehr wenig bekannt geworden. Zugegeben, daß alle Arten dieser Gattung mehr oder minder nach einem Typ bauen, ist es andererseits doch recht wichtig, die Nestanlagen verschiedener Species zu untersuchen, da zweifellos jede Art ihre besonderen Eigentümlichkeiten hat, deren Kenntnis in gewissen Fällen selbst dem Systematiker von größtem Nutzen sein kann. Im Gegensatze zu vielen anderen solitären Bienen, die harmlos und friedlich bleiben, selbst wenn ihre Brut bedroht ist, zeigt sich unsere Xylocopa bei Verteidigung ihres Heimes äußerst reizbar, kampfesmutig und todesverachtend. Es blieb …
Some European Bees, T. D. A. Cockerell
Some New Bees Of The Genus Coelioxys, T. D. A. Cockerell
A New Bee Of The Genus Megachile From Africa, T. D. A. Cockerell
A New Bee Of The Genus Megachile From Africa, T. D. A. Cockerell
Ca
No abstract provided.
Two New Bees, T. D. A. Cockerell
Notes Upon Variation Of Melissodes Lupina Cresson, T. D. A. Cockerell
Notes Upon Variation Of Melissodes Lupina Cresson, T. D. A. Cockerell
Ca
No abstract provided.