June, '10] REVIEWS 325 



measures, advising early threshing and tight sacking of small grains. Burn- 

 ing sulfur, 2ii> pounds to 1,000 cubic feet, is especially advised in cleaning 

 granaries, though it can hardly be recommended for those containing grain, 

 since this fumigation will prevent germination. The standard fumigant, car- 

 bon bisulfid, the author finds, must be used much stronger than usually 

 recommended. 



Shade Trees, by E. A. Start, G. E. Stone and H. T. Fernald, 

 Mass. Agric. Exp't. Sta. Bui. 125, p. 1-64, 1908. 



This excellent general bulletin gives much practical information to the 

 tree lover. The entomologist will be interested in the discussion of the 

 care and protection of trees, especially that part relating to tree surgery 

 and the effects of gas and electricity on trees. Summary accounts are given 

 of a number of the more important insect enemies of shade trees. 



A Chemical Study of the Lime-Sulfur Wash, by L. L. Van- 

 Slyke, C. C. Hedges and A. W. Bosworth, N. Y. Agric. Exp't 

 Sta. Bull. 319 : 383-418, 1909. 



The general bulletin on the chemistry of the lime-sulfur wash is some- 

 thing entomologists have been desiring for several years. Dr. VanSlyke and 

 his associates present in this publication, data of great value to those recom- 

 mending this valuable insecticide and fungicide, since be gives in concise 

 form the different effects from prolonged boiling and those ol>tained by em- 

 ploying different proportions ot the essential constituents. The data relating 

 to the effect of Magnesium shows the deleterious effects following its emploj- 

 ment. This bulletin gives a series of facts which may well be employed in 

 determining the value of the various brands of commercial lime-sulfur 

 washes. 



Concentrated Lime-Sulfur Mixtures, by P. J. Parrott, N. Y. 

 Agric. Exp't Sta. Bull. 320: 419-38, 1909. 



This is a discussion of the concentrated lime-sulfur mixtures, from the 

 entomologist's standpoint, being based upon the results given in the preceding 

 bulletin and largely supplemental thereto. The author finds little of insecti- 

 cide value in the sediment of certain concentrated washes and advises the 

 use of the Beaume scale for testing the strength of the preparation. The 

 table of dilutions will prove most helpful to fruit growers. 



A Handbook of the Destructive Insects of Victoria, by C. 



French, Prt. 4, p. 1-195, with 33 colored plates; Osboldstone & Co., 



Melbourne, 1909. 



The fourth part of th-is interesting and well known series contains notices 

 of a number of injurious species, and departs somewhat from the preceding 

 volumes in discussing some of the forest tree pests. Our nursery inspectors will 

 be particularly interested in the regulations governing the shipment and sale 

 of fruit and vegetables, given at the beginning of the volume, while the some- 

 what extended accounts of the two fruit flies noticed, will appeal to en- 

 tomologists having to deal with their allies in this country. The notices of 



