BOTANICAL ABSTRACTS 



A monthly serial furnishing abstracts and citations of publications in the international field of 



botany in its broadest sense. . IRUAW 



UNDER THE DIRECTION OF NEW VOR?: 



THE BOARD OF CONTROL OF BOTANICAL ABSTRACTS, INC.BOTANJC'^.- 



Burton E. Livingston, Editor-in-Chief 

 The Johns Hopkins University, Baltimore, Maryland 



Vol. VII FEBRUARY, 1921 No. 1 



ENTRIES 1-565 



AGRONOMY 



C. V. Piper, Editor 

 Mary R. Burr, Assistant Editor 



\. Anonymous. Planteavlen i 1919. [Plant production in 1919.] Tidsskr. Landoko- 

 nomi (Kjobenhavn) 1920:' 2S4-298. 1920.— During the last two years of the world war and the 

 first year following the war, the shortage of grass seed and red clover seed was acute, resulting 

 in a greatly decreased acreage of grass and clover during 1919. The opinion is ventured 

 that the decrease is temporarj^, since heavy importation of seed was received from the United 

 States during the spring of 1920. As compared with pre-war planting, the 1919 acreage of 

 wheat was decreased; rye was about the same; barley was increased slightly; sugar beets 

 were increased about 20 per cent; potatoes about 35 per cent; and the area planted to vege- 

 tables was considerably increased. The harvest of 1919 is described; it is stated to have 

 averaged about 107 per cent of normal. — Albert A. Hansen. 



2. Anonymous. Cultivation of main crop potatoes. Jour Dept. Agric. Ireland 20: 217- 

 227. 1920. 



3. Anonymous. Field experiments, 1919. Jour. Dept. Agric. Ireland 20: 167-174. 

 1920. — Summarizes results of variety tests made in Ireland with barley, mangels, oats, pota- 

 toes, turnips, and wheat. — Donald Folsom. 



4. Anonymous. Notes. Nature 105:80-81. 1920.— Note on organization of British 

 Empire Sugar Research Association to further the development of the industry. — 0. A. 



Stevens. 



5. Anonymous. American books on agriculture. [Rev. of : Gehrs, John H. Productive 

 agriculture, xii + 426 p. Macmillan & Co.: London, 1917.] Nature 104: 495-496. 1920.— 

 A textbook for "school children of the upper classes who propose to take up farming as the 

 business of their lives." — O. A. Stevens. 



6. Anonymous. Sulphur as a fertilizer for wheat. Agric. Gaz. New South Wales 31: 

 462. 1920. — Results of 4 years' trials at Cowra gave negative results. — L. R. Waldron. 



7. Anonymous. Applied plant morphology. [Rev. of: Barber, C. A. Studies in Indian 

 »- sugar canes. Mem. Dept. Agric. India Bot. Ser. 10: 39-153. 1919.] Nature 104: 578. 1920. 

 ^ — A study of the underground branching of the plant of wild and cultivated forms of sugar 

 : — cane and an attempt to correlate morphological characters with economic values. This is 



referred to as the fourth paper on the Indian sugar canes. — 0. A. Stevens. 

 ^ 1 " . 



'^ BOTANICAL ABSTRACTS, VOL. vn, NO. 1 



