644 EXPERIMENT STATION RECORD. 



chloricl of magnesium, carbolized lime, and various other materials. Cutting off 

 the flowering heads, pulling up the plants by hand, deep plowing, and burning 

 the soil were also tried without success. 



The only field methods which seemed to promise any real success consisted in 

 " lightening the soil by road drift " and " raising the top S in. of soil and putting 

 3 in. depth of ashes below it." " While the use of road drift certainly did good, 

 it was not nearly as good as the employment of ashes." The author regards 

 these results as indicating that the solution of the problem must lie " in the 

 direction of finding some means by which the soil could be rendered lighter and 

 less retentive of water." 



HORTICTJLTTJRE. 



Library of agriculture. — Horticulture and truck farming, H. M. Skinner 

 and A. L. McCredie {Chicago, 1912, vol. J,, pp. G39, pis. ll, figs. 7^5).— This, the 

 fourth of a series of volumes dealing with agricultural subjects, consists 

 largely of papers which have previously appeared as bulletins of the U. S. 

 Department of Agriculture and of some of the State stations. 



Plant protection calendar for field, vineyard, orchard, and garden (Pflan- 

 zenschutzkalender fiir Feld-, Wein-, Ohst- mul Gartenhaii. Vienna: K. K. Landw. 

 Bakt. u. Pflanzenschut::stat., 1911, pp. 11). — This calendar outlines the neces- 

 sary operations throughout the year for combating insect pests, fungus diseases, 

 and other enemies for greenhouse, garden, and field crops. 



Influence of fertilizers on the conservation of fruits, N. Espaullard (Jour. 

 Soc. Nat. Ilort. Fra)icc, 4. scr., 13 {1912), July, pp. .',10, 47J).— The author hero 

 summarizes the results secured in a 3-year study of the effect of various fer- 

 tilizer elements on the keeping quality of pears. 



The phosphatic and potassic fertilizers were found to produce large handsome 

 fruits without impairing their keeping quality. The use of nitrate of soda alone, 

 however, resulted in shriveled fruit of poor keeping quality. Nitrate of soda 

 appears to stimulate vegetative growth and to hasten maturity at the expense 

 of quality of the fruit. 



Profitable fruit storage cellar, W. J. Lewis {Xew England Homestead, 6') 

 {1912), No. 8, pp. 1.1,0, 1J,2, fig. 1).—A fruit storage cellar capable of holding 

 about 6.000 bu. of apples is here described and illustrated. 



Orcharding in Maine, A. K. Gardner and H. P. Sweetser (Bui. [Maine] 

 Dept. Agr., 11 (1912), No. 3, pp. 52, figs. 11). — A popular treatise on apple 

 orcharding. 



How to make an orchard in British Columbia, J. T. Bealby {London, 1912, 

 pp. 8C)). — A popular handbook dealing especially with orchard practices in 

 British Columbia. 



The Georgia apple, E. M. Hafer {Proc. Ga. State Hort. Soc., 36 (1912), pp. 

 Ji6~52). — A general discussion of apple culture in the Georgia mountains, includ- 

 ing a descriptive list of native Georgia apples. 



Pruning olives in Italy, N. Pinto (Bol. Arhor. ItaL, 7 (1911). Nos. 2, pp. 

 55-65; 3-.',, pp. lJf9-178, figs. 2). — A descriptive account of the methods employed 

 in pruning olives in the Province of Bari, Italy. 



Contribution to the study of the leconstitution of vineyards. — I, The grape 

 scions, or a sketch of the ampelography of Vaud, J. Burnat and I. Anken 

 (Contrihution a VEtndc dc la Reconstitution dcs Vignohles. I, Les Ci^pagcs- 

 Greffons ou Essai d'Amp^logfaphie Vaudoise. Geneva and Paris, 1910, pp. 

 XVII I +126, pis. 16). — This is the first of a series of 3 volumes to deal with the 

 reconstitution of vineyards in the Vaud region. The present vohune contains a 

 study of the varieties of grapes grown in this region that have furnished the 



