744 EXPERIMENT STATION KECOKD. 



scale, woiTuing for borers, etc, tbiit iiiuy be carried on tluriiig the winter period 

 of idleness. 



Does spraying- pay? M. P. Somks (.1/is.soHri Fruit .S7«. Circ. 8 (1914), pp. 

 3^. — In tiiis ciicnl.ir tlie author presents data taken from experiments made by 

 the station to show that it pays to spray even single trees. Attention is called 

 to the fact that si)raying as it is too often done does not pay, and brief general 

 suggestions are given relative to proper methods of spraying. 



[Orchard heating], A. J. Cook (Bien. Rpt. Val. Htate Com. Hort., 6 (1913-14), 

 p. 8). — In a brief summary dealing with observations of the freeze in the Cali- 

 fornia citrus region in January, 1913, the author concludes that orchard heating 

 is indisi)ensable. and that a good heating system with sufficient oil and help 

 avaihdile on call will ])rotect against the lowest temiiei-ature ever yet known 

 in the citrus belt. 



Apple growing in California, G. P. Weldon (Sacramento: State Com. llort., 

 lill.'i, pp. 124, p()s. o<S). — A i)ractical treatise designed to cover the more impor- 

 tant phases of apple culture with special reference to California conditions. 

 The introductory chapter gives the statistics of the apple industry in that 

 State. 



"Iowa 403," a new seedling apple, S. A. Beach (loica Sta. Circ. 18 (1914), 

 pp. 3). — This circular gives the history as far as known and description of one 

 of the promising seedling apples originated at the station which has been named 

 " Iowa 403." The apple as here de.scribed is dark red, attractive when well- 

 colored, and desirable for either cooking or dessert uses. The test thus far 

 indicates that the tree is a reliable croi)per under adverse climatic condition.s. 

 The variety is now offered for distribution to nurseries. 



The technical description of apples, J. K. Shaw (Massachusett.'s Sta. Bui. 

 150 (1914), pp. 73-90. pZs'. ^, figs. 3). — In this bulletin the author has compiled 

 in a definite and systematic manner various methods and terms used in the 

 systematic and commercial description of apples, both trees and fruit. The 

 bulletin is intended for the use of students and investigators in connection with 

 a text-book or reference work on systematic pomology. A number of reference 

 works are listed. 



The varieties of plums derived from native American species, W. F. Wight 

 (U. 8. Dept. Agr. Bui. 112 (1915), pp. 44). — ^This bulletin comprises a record of 

 American varieties of plums including hybrid forms. The record as a whole 

 shows the species to which the variety belongs, its geographic origin, time of 

 introduction, and the introducer. Plant material has been examined whenever 

 procurable. References ai*e given to persons, institutions, and localities fur- 

 nishing material as well as to other sources of information, much of which 

 was found in The Plums of New York (E. S. R., 27, p. 40). 



Plum culture in Ontario, F. M. Clement (Ontario Dept. Agr. Bui. 226 

 (1914), pp. •3'?. fiff^- 1^)- — This bulletin discusses the present status of the plum 

 industry in Canada as a whole and the cultural methods of the most successful 

 growers in Ontario, describes the more impoi'tant commercial varieties, and 

 offers suggestions relative to future develojtment. 



The native persimmon (Diospyros virginiana), W. F. Fletcher (Proc. 

 Anicr. Poinol. Soc., 1913. pp. 4^-50). — A short account of the native persimmon 

 with reference to its history, characteristics, distribution, propagation, and 

 culinary uses. 



Studies on native fruits. — I, Grapes, musts, wines, ciders, and vinegars, 

 J. PuiQ Y Nattino (Min. Indus. [Uruguay], Insp. Xac. Ganaderia y Agr. Bol. 

 10 (1914), pp. 62, figs. 9). — ^This is the first of a series of studies on the fruits 

 and fruit products of Uruguay. The present bulletin contains analytical data 



