470 JOURNAL OP ECONOMIC ENTOMOLOGY [Vol. 2 



area of more than 5,0000 square miles, of over $500,000. In addition to this 

 the federal government kept the trees and shrubs along some 230 miles of 

 road free from these pests. Though this work is all conducted under the 

 supervision of state authorities, the parties responsible are able to report 

 that the insects have been kept under control, except in woodland districts, 

 where lack of funds made extensive operations impossible. The clearing of 

 trees along the streets and highways has been continued and a special effort 

 made to cooperate with residents along the north shore, additional funds for 

 this latter work being contributed largely by interested citizens and munici- 

 palities. The map of the infested area shows that in spite of this enormous 

 expenditure the gipsy moth has been able to extend its range somewhat, while 

 the brown-tail moth has established itself throughout the eastern half of the 

 state. The extensive spraying operations have resulted in the development 

 of an improved and more powerful oufit, especially adapted to woodland work. 

 Experiments continued from the previous year have shown that solid plant- 

 ings of white pine are not injured by gipsy moth provided they are protected 

 from invasion by caterpillars from adjacent trees. The work on fungous 

 diseases and parasitic insects has been continued. Dr. J. P. Clinton of Con- 

 necticut made special studies of the fungous disease affecting brown-tail moth 

 caterpillars, and though his work did not result in establishing a wide-spread 

 infection, this disease was found to be an important factor in controlling this 

 pest. The work with parasites has been greatly increased, some especially 

 valuable forms having been imported from Japan through the agency of Pro- 

 fessor Kincaid. Importations of parasites have been larger than before, and 

 some 200,000 of the most active enemies of the gipsy and brown-tail moths 

 were liberated. The extended work with parasites resulted in a number of 

 important discoveries. Doctor Howard and his associates are to be congrat- 

 ulated upon the progress already made in this most promising line of work. 

 We wo.uld call attention, in conclusion, to Professor Silvestri's report upon his 

 findings in the infested territory. This Italian specialist highly commends 

 the careful biological work on parasites now being done in Massachusetts and 

 rightfully calls attention to the importance of similar studies under European 

 conditions, because such investigations would prove of great value in determin- 

 ing the relative importance of the various species. 



Orchard Spraying — -Orchard Protection Work, by Franklin 

 Sherman, Jr., N. C. Dep't. of Agric. BuU. 6, Vol. 30, p. 1-48, 1909. 



This is a very plain, practical bulletin designed especially for farmers not 

 well versed in horticulture. The author does not hesitate to go into such 

 details as the type of spray apparatus, the purchasing of chemicals and the 

 relative benefits to be secured from spraying. The orchard inspection work 

 in the state is briefly summarized and pertinent suggestions made to pur- 

 chasers of nursery stock. The bulletin is illustrated by a series of original 

 figures and will appeal most strongly to the practical man. 



Insect Stories, by Vernon L. Kellogg, Henry Holt & Co., p. 

 1-298, illustrated, 1909. 



This interesting little book portrays in a simple though effective manner 

 some of the instructive lessons that may be learned by a study and collection 



