Botanical Abstracts, Volume 12Williams & Wilkins, 1923 - Botany |
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Page 625
... tion of the Electro - Culture Committee.- " * * Of the fourteen positive results of experiments extending over six years , only three are less than 10 per cent , while of the four negative results none reaches 10 per cent . Of the ten ...
... tion of the Electro - Culture Committee.- " * * Of the fourteen positive results of experiments extending over six years , only three are less than 10 per cent , while of the four negative results none reaches 10 per cent . Of the ten ...
Page 627
... tion and are an important factor in erosion . The soil is comparatively rich . Excessive sheep grazing and burning combined with the depredations of rabbits destroyed many of the better forage plants and broke up the soil cover so that ...
... tion and are an important factor in erosion . The soil is comparatively rich . Excessive sheep grazing and burning combined with the depredations of rabbits destroyed many of the better forage plants and broke up the soil cover so that ...
Page 636
... tion and ( 2 ) soluble hydrolyzing and oxidizing enzymes . A detailed biography is given in Jour . Pharm . et Chim . , Dec. 1 , 1921. A list of his mycological publications is given . - D . S. Welch . 3734. BOUGAULT , J. Victor Harlay ...
... tion and ( 2 ) soluble hydrolyzing and oxidizing enzymes . A detailed biography is given in Jour . Pharm . et Chim . , Dec. 1 , 1921. A list of his mycological publications is given . - D . S. Welch . 3734. BOUGAULT , J. Victor Harlay ...
Page 647
... tion takes place in temperatures below 0 ° C . throughout the day.-G. Kempff . 3824. NICHOLS , G. E. A working basis for the ecological classification of plant communities . Ecology 4 : 11-23 . 1923. - This paper is in the nature of a ...
... tion takes place in temperatures below 0 ° C . throughout the day.-G. Kempff . 3824. NICHOLS , G. E. A working basis for the ecological classification of plant communities . Ecology 4 : 11-23 . 1923. - This paper is in the nature of a ...
Page 653
... tion , declining after the forest had become completely clothed ; and ( c ) topographically , being greatest for the same period in exposed stations and least in sheltered ones . The evaporating power of solar radiation was found to ...
... tion , declining after the forest had become completely clothed ; and ( c ) topographically , being greatest for the same period in exposed stations and least in sheltered ones . The evaporating power of solar radiation was found to ...
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Popular passages
Page 741 - Gazette, vol. 74 ] [442 expected under this assumption, but it is preferred to use the theoretical value until further data on this point are available. It is assumed that the magnitude of the excess depression is a measure of the quantity of water held in such a way as to be unavailable for the solution of the sugar. The values obtained may be calculated to percentage "bound
Page 785 - BOTANICAL ABSTRACTS A monthly serial furnishing abstracts and citations of publications in the international field of botany in its broadest sense, beginning with the year 1918 PUBLISHED MONTHLY UNDER THE DIRECTION OP THE BOARD OF CONTROL OF BOTANICAL ABSTRACTS, INC.
Page 642 - Traité des arbres et arbustes qui se cultivent en France en pleine terre...
Page 769 - there is no evidence of the presence of soluble toxins in normally aerated soils sufficiently supplied with plant food and with calcium carbonate, but toxins may occur on 'sour* soils badly aerated and lacking in calcium carbonate, or on other exhausted soils.
Page 913 - Les dispositions de la loi du 28 janvier 1921 autorisant provisoirement le Gouvernement à s'opposer à l'exploitation excessive de certains bois et de certaines forêts appartenant à des particuliers...
Page 821 - Is the whole of Mendelism perhaps nothing but an establishment of very many chromosomical irregularities, disturbances or diseases of enormously practical and theoretical importance but without deeper value for an understanding of the "normal...
Page 666 - WALDRON, LR, 1921. — Inheritance of Rust Resistance in a Family Derived from a Cross Between Durum and Common Wheat.
Page 903 - Untersuchungen über Echtfärbung der Zellkerne mit künstlichen Beizenfarbstoffen und die Theorie des histologischen Färbeprozesses mit gelösten Lacken von Prof.
Page 635 - List of Serials Currently Received in the Library of the US Department of Agriculture: Exclusive of US Government Publications and Publications of the State Agricultural Colleges and Experiment Stations: Arranged by Title, by Subject, and by Region.
Page 1111 - BRITTON, NL and JN ROSE. The Cactaceae : Descriptions and illustrations of plants of the cactus family.