June, '11] REVIEWS 349 



. , . " There is more to the same effect. We presume that the 

 notice was prepared hurriedly. This confusion of ideas could be pre- 

 vented by adhering and leading the general public to adopt a rational 

 nomenclature for common names. An excellent start has been made 

 and we trust that the effort will be continued till such absurdities are 

 eliminated. Our English brethren recognize the desirability of this, 

 and it is not too much to hope for world-wide cooperation in this 

 respect. 



Reviews 



The Codling Moth, by L. Caesar. Ont. Dep't Agric, Ont. Agric. 

 Coll. Bui. 187, p. l-40: 1911. 



An excellent, comprehensive, popular account, based on original observations in 

 Canada and written with special reference to conditions obtained in the Ontario 

 region. There is an admirable series of observations on the transformations of the 

 larva, pupation and appearance of the moths. The discussion of spraying outfits 

 is practical. The author very justly emphasizes the importance of thoroughness in 

 spraj'ing for this insect. While admitting the desirability of throwing the poison into 

 every calyx, we are not quite willing to affirm this as a cardinal necessity, providing 

 the distribution is thorough. We have repeatedly seen spraying where practically 

 every leaf and blossom end was poisoned with very little penetration to the inner 

 calyx cavity and no dripping, yet 9.5 to 98% of the fruit was free from worms. The 

 record of results following one application is particularly gratifying, the author find- 

 ing that the sound fruit ranged from SO to 98% or an average of 90%. There is an 

 excellent series of illustrations. This publication should do much toward making 

 matters plain for the fruit grower. 



Fourth Annual Report of the Committee of Control of the South 

 African Central Locust Bureau, Charles P. Lounsbury, Editor, 

 p. 1-60. 1910. 



The record of cooperation in locust control among the South African colonies is 

 continued in this report. One of the most interesting facts is possibly the demon- 

 stration that locust eggs, under certain conditions, may retain their vitality for three 

 and one half years. American entomologists confronted by local grasshopper or 

 locust problems will find valuable suggestions in the discussion of poisons. A sweet- 

 ened preparation of arsenite of soda was largely used for the destruction of these 

 insects, it being either sprayed upon the vegetation or applied as a poisoned bait. 

 This latter should preferably be vegetable matter cut fine and widely distributed, 

 since this procedure greatly lessens the danger of poisoning stock. There have been 

 several cases of the latter in South Africa, all, or nearly all, due to gross carelessness 

 in this respect. The value of this report is greatly enhanced by colored plates illus- 

 trating the two important species, and also a series of maps showing the distribution 

 of the insects in both the adult and immature stages. 



