FOODS ANIMAL PRODUCTION. 



237 



Fertilizers as insecticides, L. Dumas (Jour. A<jr. I'ntt., 5S {1SD4), No. 33, pp. 242- 

 244). — The ii.so of petrolcuui for ])reservii)g' niaunrc and disinfecting sewers is rec- 

 omnieuded, and it is claimed that manure and sewage so treated is valuable for com- 

 bating insects and fungus diseases. 



Insect pests, treatment {Garden and Field, ?0 {1S04), Xo. 2, p. ■'>4). — Directions for 

 combating the codling moth, peach ai)bis, and a few other insects, with receii>ts for 

 insecticides. 



Insect damage to red beeches, F. Thomas (Forstl. nalnrte. ZlseJir., 3 { 1S94), Xo. S, 

 pp. 321-327). — A faulty unfolding of the leaves was produced by insect attacks upou 

 the buds. 



Fungus diseases against Silpha opaca, J. Danysz (Bui. Soc. Ent. France, 1S94, 

 Xo. ]3, pp. 1S1-1S4). — On account of tiio dcstruetiveuess of Silpha opaca to beet foli- 

 age, experiments Avere made with the fuugi Sporotrichum {ilohnlifernm and Isaria 

 destructor. The iirst was found to kill the larvse in from 2 to 9 and the adults in 

 from 7 to 9 days after inoculation. The other acted a little slower, but as effectually. 

 The method of treatment is recommended. 



The ichneumon flies of Europe and adjacent countries, G. V. Berthou:\iieu 

 (Ann. Soe. Fnt. France, Go (1S04), Xo. 2, pp. 241-274). — The first part of an elaborate 

 paper, treatiug of the distribution and habits and giving a synopsis of the tribes. 



Parasitic and predaceous insects, C. V. Kilky (Pop. Sci. Monthly, 45 (1894), No. 

 5, pp. 67S-GS5). — A popular account of recent iuvestigatious iu economic entomology. 



FOODS— ANIMAL PRODUCTION. 



Concerning the digestibility of the pentosans, J. B. Lindsey 

 and E. J>. Holland {Agh ^ci.,8 {1891), Ko. l^pp. 172-183). — In coimec- 

 tioii with digestion experiments with sheep at the Massachusetts State 

 Station, the pentosans in the food and in the feces were determined, and 

 from this the percentage digested was calciihited. The feeding stuffs 

 tested were ha}', Buffalo ghiten feed, linseed meal, corn cobs, dried 

 brewers' grains, and wheat bran. The pentosans were determined from 

 the furfiirol as usual. Usually 2 or 3 slieej) were used for each digestion 

 experiment. The results are given in detail, together with the percent- 

 age of pentosans and of nitrogen-free extract in the feeding stuffs 

 tested, and the average digestion coeflicients found for these materials. 

 The data for the pentosans are summarized below, together with those 

 for the nitrogen-free extract for comparison : 



Diyestibiliti/ of pentosans and of nitror/en-free e.rtract by sheep. 



Hay (a) 



Hiiv (/') 



Jiiitfalo gluteu feed , 



Now-process linseed meal. . 

 Old-process linseed meal. . . 



Corn cobs 



Dried brewers' grain 



Spring- wheat bran 



Winter-wheat bran 



