August, '12] REVIEWS 375 



varies widely. They find that with an abinidance of insects and a small crop, 

 thorough spraying will not produce a satisfactory amount of sound fruit. Clean 

 culture and the planting of orchards some distance from woodlands or other natural 

 sheltens is of material benefit. There is also a valuable chapter upon spraying peaches 

 with arsenicals. The authors arc to be congratulated upon having prepared a stand- 

 ard work. 



Papers on Insects Affecting Stored Products, by F. H. Chittenden, 

 U. S. Department of Agriculture, Bureau of Entomology, Bulletin 

 95, Parts 2 and 3, pages 19-52. 1911. 



These two parts give general biologic and .systematic accounts of four of the less 

 known grain pests, namely, the broad-nosed grain weevil, Caulophilus latinasus Say, 

 the long-headed flour beetle, Lalhdicus oryzae Waterh., the lesser grain borer, Rhizo- 

 perlha dominica Fabr., and the larger grain borer, Dinoderus truncatus Horn. The 

 first named, the author regards as a permanently established enemy of dried cereal 

 and other food products in the United States; the second is a recent introduction 

 thus far known only in Texas, while the two remaining, though of considerable impor- 

 tance in tropical climates, are seldom injurious in colder countries. The author 

 considers that we may adopt as a general standard, 2 lbs. of carbon bisulfid to 

 1,000 cubic feet of space, the temperature being between 65° and 75° F. and con- 

 tinuing the fumigation for 48 hours or more or until the odor of the gas has become 

 entirely dissipated. The species discussed are well illustrated. 



A Manual of Philippine Silk Culture, by C. S. Banks, Department 

 of the Interior, Bureau of Science, Manila, pages 53, plates 20. 1911. 



This comprehensive, ahnost monographic work gives a historical account of silk 

 culture in the Philippine Islands, a summary discussion of the silk worm, Bomhijx 

 mori and of the eri or castor silk worm, Atlaciis ricini, together with a brief mention 

 of several wild silk worms. The growing of the mulberry, the selection of cocoons, 

 the shipment of eggs and the elaboration and culture of silk also receive attention. 

 The value of the latter is greatly increased by two plates giving the plans of a house 

 for growing silk worms and also diagrams showing the construction of a hand silk- 

 reeling machine. There are admirable illustrations of the various .silk worms in their 

 different stages. The work is practical and should be of great service in establishing 

 a profitable indu-stry in our Island possessions. 



Current Notes 



Conducted by the Associate Editor 



Dr. L. O. Howard left Washington about July 1st for a brief European trip. 



Mr. Shigern Kuwayama, author of papers on the Psyllidae of Japan, died Feb. 

 17th, 1912. 



Mr. Henry B. Weiss, has been appointed- acting State Entomologist of New 

 Jersey. 



Mr. H. C. Eagerton, has been appointed extension assistant in entomology, at 

 Clemson College and Station, S. C. 



