395 



[In tlie latter case] the crop was doubled by adding 150 pounds of nitrate of soda 

 and 100 pounds of muriate of potash. * * * No addition to this crop was pro- 

 duced by using South Carolina rock or Thomas slag. But the use of 500 pounds of 

 acid South Carolina rock, costing $4.50, caused an additional gain to that nuide by 

 the nitrate of soda and muriate of potash of 50 bushels, at a cost of 8 cents per 

 bushel. 



The yields are also given of a crop of beans raised by Mr. IT. L. 

 Leland, in 1890, witlioiit fertilizers, on plats Avhicli in 1889 had been 

 used for the comparison of fine-gronnd (1,900 pounds) or dissolved (500 

 pounds) South Carolina rock and Caribbean Sea> guano (7135 pounds), 

 described in the Annual Eeport of the station for 1889, pp. 135-144 (sec 

 Experiment Station Record, vol. ii, p. 048). The soil is described as " a 

 dry, slaty loam, which previous to 1889 had received no manure for 

 30 years, had been subjected to continuous cropping," and had proved 

 to be quite even in fertility. The phosphates were applied in cond:)ina- 

 tion with muriate of potash and nitrate of soda, as in the exi^erimeuts 

 of 1890, described above. In 1889 the largest yields of potatoes were 

 with dissolved rock, the next largest with tine- ground rock, and the 

 next with guano. The yield of beans on these plats in 1890 followed 

 the same order. 



Tests op varieties op vegetables, W. Balentine, M. S. (pp. 

 102, 103). — Notes on 6 varieties of beans, 3 of sweet corn, 1 of peas, and 

 1 of beets. 



Report op Botanist and Entomologist, F. L. Harvey, M. S. 

 (pp. 105-140, plates 2, figs. 13). — The subjects considered are, (1) ger- 

 mination tests of seed, (2) tests of varieties of grasses, (3) suggestions 

 regarding spraying experiments for apple scab and codling moth, (4) 

 spraying experiments with Paris green for potato beetles, (5) discussion 

 of causes of potato scab, (6) correspondence about strawberries, (7) 

 notes on rib grass and fall dandelion, (8) notes on insects, (9) a list of 

 varieties of orchard fruits and grapes planted at the station in 1890. 



Germination tests of seeds (pp. 107-112). — Tabulated data for tests of 

 vegetable seeds, the results of which have varied widely. Experiments 

 in treating seeds with weak solutions of corrosive sublimate (1 part to 

 500 or 1,000 parts of water) to prevent injury by fungi have indicated 

 that the treatment destroys the fungous germs, but in some cases may 

 have injured the seed. 



Spraying experiments ivith Paris green for potato beetles {])]). 114, 115). — • 

 A brief account of experiments in which solutions containing from ^ 

 to 1 J teaspoonfuls of Paris gTeen to 2 gallons of water were used for the 

 potato beetle {Doryphora decemlineata). The solution containing 1 tea- 

 spoonful of Paris green was effective, but weaker -solutions did not 

 l^rove so. 



Causes of potato scab (pp. 115-117). — A discussion of the results of 

 investigations by H. L. Bolley of the Indiana Station, reported in Agri- 

 cultural Science for September and October, 1890, and E. Thaxtcr of 



