468 EXPERIMENT STATION RECORD. [Vol.35 



figs. 21). — This report contains the proceedings of the twenty-fourth annual 

 session of the Illinois State Beekeepers' Association, held at SpringfieJd, No- 

 vember 19 and 20, 1914 (pp. 25-99), and of the seventeenth annual convention 

 »f the Chicago-Northwestern Beekeepers' Association, held at Chicago, Decem- 

 ler 17 and 18, 1914 (pp. 101-175) ; the by-laws as adopted by and the minutes 

 of the National Beekeepers' Association, Denver, Colo., in February, 1915 (pp. 

 176-188) ; etc. 



Bramble bees and others, J. H. Fabee, trans, by A. Teixeika de Mattos 

 {New York: Dodd, Mead d Co., 1915, pp. Vin+456). — A popular treatise con- 

 sisting of a translation of all the essays on wild bees from the author's Sou- 

 venirs Entomologiques, with the exception of those on mason bees previou.sly 

 noted (E. S. R., 32, p. 758). Observations of the bionomics of species of Osmia, 

 leaf cutters (Megachile), cotton and resin bees (Anthidium spp.), and spe- 

 cies of Halictus are given. 



The hunting wasps, J. H. Fabbe, trans, by A. Tetxeiea de Mattos {New 

 York: Dodd, Mead d Co., 1915, pp. VIII +427). — This popular treatise, which 

 consists in large part of a translation of chapters on wasps from the author's 

 Souvenirs Entomologiques, presents observations of the bionomics of species of 

 Cerceris, Sphex, Ammophila, Bembex, etc. 



A survey of the zoocecidia on species of Hicoria caused by parasites 

 belonging to the Eriophyidse and the Itonididas (Cecidomyiidae), B. W. 

 Wells {Ohio Jour. Sci., 16 {1915), No. 2, pp. 31-59, figs. 33).— This paper pre- 

 sents descriptions of the types of 2 eriophyid and 30 itonidid galls on hickory 

 leaves. In addition, forms previously described and not seen by the author have 

 been added to give completeness to the survey of the two groups of galls. 



A new oat pest (Tarsonemus spirifex), the oat mite, T. A. C. Schoevebs 

 {Tijdschr. Plantenziekten, 21 {1915), No. 4, pp. 111-130, pis. 3, figs. 2; ahs. in 

 Rev. Appl. Ent., 3 {1915), Ser. A, No. 11, pp. 66-i, 665).— Oats received in July 

 from Almkerk were attacked by this mite. It has also been a source of injury 

 to oats in some departments of France and has been found in Baden, Bavaria, 

 and Mecklenburg. The damage done is very considerable, and at Wageuingen 

 90 per cent of the haulms were more or less attacked. 



A description of the mite and larvge, with plates, by A. C. Oudemans forms 

 a supplement to this paper (pp. 124-130). 



The red spider on cotton and how to control it, E. A. McGeegor {U. 8. 

 Dept. Agr., Farmers' Bui. 735 {1916), pp. 12, figs. 10). — A general account based 

 upon studies previously noted (E. S. R., 32, p. 251). 



FOODS— HTJMAN NUTRITION. 



On the digestibility of bread. — I, Salivary digestion in vitro, J. C. Blake 

 (Jour. Amer. Ghem. Soc., 38 {1916), No. 6, pp. 1245-1260, flfj. i).— This paper 

 is a report of experiments in vitro on the digestibility of bread, from which the 

 following conclusions are drawn : 



" The specificity and complexity of starches is confirmed. A number of poly- 

 saccharids are clearly recognized and differentiated, and the existence of two 

 new ones indicated. 



" The three principal ingredients of cereal starches are amylocellulose (the 

 cell walls), amylopectin, and amylose. 



" The amylose, contrary to the contention of . . . [others] passes through the 

 stages of amylodextrin and erythrodextrin during salivary digestion, but these 

 dextrins digest so rapidly that their presence in the digestion mixture can con- 

 veniently be demonstrated only when the enzym concentration is very low 



