236 EXPERIMENT STATION EECORD. 



Corn, W. R. Dodson and Y. L. Roy (Louisidna Sta. Bui. 118, preliminary 

 part, pp. 2-16). — This publication, which will form a portion of a bulletin cover- 

 ing the general subject of corn production in Louisiana, gives directions for 

 selecting, grading, and storing seed corn, and preparing exhibits. An explana- 

 tion of the score card and rules and regulations for judging ai-e also included. 



Manurial experiments with cotton in the Leeward Islands, H. A Tempany 

 (West Indian Bui., 10 (1910), No. 3, pp. 269-213).— The results of 5 years' 

 experiments indicate that under conditions prevailing in the Leeward Islands 

 with soils in moderately good tilth, the application of artificial and natural 

 manures to Sea Island cotton is unremunerative. 



[Shrinkage of hay in the stack], B. N. Wale {Jour. Southeast. Agr. Col. 

 IH/e. 190S, No. 17, p. J/'i). — On July 2G, 124 lbs. of hay was placed in a hop 

 pocket in the center of a stack. By November 2, after undergoing normal 

 fermentation, it had lost 21* lbs. or 17.33 per cent. 



The cultivation of hemp in the United States, L. H. Dewey {U. S. Dept. 

 Ayr., Bur. Plant Indus. Circ. 57, pp. 7, fig. 1). — This circular discusses the cli- 

 matic and soil requirements of hemp and gives directions for sowing, harvest- 

 ing, retting, and bi-eaking. The total cost per acre is estimated at $30 and the 

 gross returns at $50. 



" Hemp can not be grown profitably in small isolated areas. Two hundred 

 acres or more should be grown on one or more farms near together, so as to 

 warrant the introduction of special machinery for drilling, harvesting, breaking, 

 and baling, and also make it possible to ship the fiber in full car lots. 



" Before undertaking the cultivation of hemp on a commercial scale it is 

 advisable to try some preliminary exiDerimeuts with half an acre or less, to 

 determine whether the local conditions are adapted to the crop." 



Characteristics of some varieties of oats, E. Gross (Ztsehr. Landw. Ver- 

 suchsic. Osterr., 12 (1909), No. 9, pp. 666-670). — Studies of the characteristics 

 of Nonplus Ultra, Ligowa, Milner. Mortgage Lifter, Meteor, and Duppau varie- 

 ties of oats are given, including the tillering power, ratio of straw to panicle, 

 grain to straw and chaff, and grain to chaff, the number of kernels per plant 

 and per panicle, the weight per thousand kernels from selected plants, and the 

 yield per hectare. 



Report on experiments with potatoes, 1909, J. G. Stewart (Edinb. and 

 East of Scot. Col. Agr. Bill. 20. pp. 12). — Among the early varieties tested Mac- 

 pherson i)roduced the highest total yield, 8 tons 10 cwt. per acre of excellent 

 cooking quality, while among the medium early varieties, Dalmeny Acme pro- 

 duced a yield of 6 tons 1.5 cwt. of fair cooking quality, and Dalmeny Gem 

 produced from new seed a yield of 8 tons 14 cwt. of very good cool^ing quality. 

 Among the late varieties. Northern Star produced a yield of 10 tons 5 cwt. of 

 inferior cooking quality, while Dalmeny Hero produced 11 tons 6 cwt. and 3 

 qr. of good cooking quality. All were practically free from diseased tubers. 



Large sets produced a slightly larger crop than did small sets. At only one 

 center out of five did spraying give a favorable result, but at that center the 

 "soda" spray proved more satisfactory than the "lime" spray. An applica- 

 tion of 1 cwt. of sulphate of ammonia, 4 cwt. of superphosphate, and 1 cwt. of 

 sulphate of potash was followed by a yield of 4 tons 2i cwt. greater than that 

 secured from soil to which no artificial fertilizers were applied and 14 1 cwt. 

 greater than that to which the same mixture was applied in addition to 1 

 cwt. of carbonate of magnesia. The substitution of IJ cwt. of calcium 

 cyanamid for 1 cwt. of sulphate of ammonia in this formula resulted in a yield 

 of potatoes lower by 1 ton 8i cwt. 



