658 EXPERIMENT STATION RECORD. 



Tbc jai]);il stage which was studiod In the hiburalory was found to last about 

 10 days. Observations indicate that in Minnesota the insect normally pupates 

 during the latter part of May and emerges from the cell about the middle of 

 June. 



Two parasites were observed, one l)elonging to the genus Atanycolus, tlie 

 other an undetermined trichogranimid. As regards control measures it is 

 stated that the cutting and hui'ning of infested trees before the emergence of 

 the adults in the spring heretofore recommended is an effective method and 

 needs emphasizing. The need of other methods is thought imjierative. The 

 trunks and large limbs were sprayed during the egg-laying season with an 

 iron sulphate and lime-sulphur mixture and others witli a Bordeaux mixture 

 as a preventive measure. The results indicate that .it was successful in 

 preventing much oviposition. 



Contributions toward a monograph of the scolytid beetles. — II, Prelimi- 

 nary classification of the superfaniily Scolytoidea, A. D. Hopkins ( U. H. Dept. 

 Agr., Bur. Ent. Bui. 11, pt. 2, tech. sci: {1915), pp. VI +165-232, pU. S, figs. 

 11). — This second jjart of the bulletin previously noted (E. S. R., 21, p. 557) 

 discusses the taxonomy and presents a preliminary classification of the families 

 and subfamilies of the scolytid beetles of the world. The discussion and 

 classification are said to be based upon a study of representatives of about 122 

 described and undes(:>ribed genera and about 1,000 species of North America 

 and other countries in the collections of the U. S. National Museum and cer- 

 tain other museums and institutions of this country. 



Following a brief introduction, a discussion of the position of the Scoly- 

 toidea and tJie general anatomy, the taxonomy, including morphological chai'ac- 

 ters, physiological characteristics, geographical distribution in its bearing on 

 taxonomy, etc., is dealt with at considerable length (pp. 169-216). A brief 

 discussion of the species, the genus, nomenclature, types of genera, and a 

 description of a new genus and species {WehMa (liptcrocarpi) from the Philip- 

 pines follow. The author's preliminary classification of the .superfamily is 

 presented in the form of keys to the families and subfamilies, four of the 

 former, Ipidfe, Scolytidfe, Scolytoplatypodidre, and Platypodidte, and twenty of 

 the latter being recognized. 



A list is presented which shows the position of the principal described genera 

 in the preliminary classification. A bibliography of the literature relating to 

 the subject consisting of four pages is appended. 



Descriptions of some weevils reared from cotton in Peru, W. D. Pierce 

 (U. S. Dept. Agr. Rpt. 102 {1915), pp. 16, pis. 2. figs. 6').— This paper presents 

 descriptions of a number of species reared by C. IL T. Townsend from cotton 

 stalks, squares, and bolls in Peru. Two genera and seven species, namely, 

 Slylahris pcruanus n. sp., Padnihruchus verticdlis n. sp., Spcr)iiopJtagns piurce 

 n. sp., EustyJomorphns squamipuncfatus n. g. and n. sp., Mcncli/pus raricgatus 

 n. sp., SiMnia peruana n. sp., Gasterocercodes gossypii n. g. and n. sp. are thus 

 described, and notes on two additional species, namely, Anthonomiis testitus 

 (E. S. R., 25, p. 763) and Geraeus perscit'us, are included. 



FOODS— HUMAN NUTRITION. 



Pood industries, H. T. Vulte and Sadie B. Vanderbilt {Easton. Pa.: The 

 Chemical Publishivg Co., 1914, pp. VIII +309, figs. 78).— The authors have in- 

 corporated in this text-book the material collected as the result of many years' 

 experience in lecturing on the manufacture of foods and food products. The 

 essential steps of the manufacturing processes are described without going to 



