FOODS HUMAN NUTRITION. 861 



1905-6, tests were made of Paris green alone, in water, and with Bordeaux 

 mixture. It was found that stone fruits are not affected by Paris green when 

 used at the rate of 50 to 150 gm. per 100 liters of water. A number of 

 varieties of apples, particularly RHiston, Cox Orange, Gravenstein, etc., showed 

 round burced areas upon the foliage after spraying with Paris green, but 

 the injuries were so slight as to be of little importance in the growth or yield 

 of the trees? 



As comi)ared with Paris green arsenate of lead i)roduced less injury upon 

 the foliage. 



Spray calendar, W. E. Britton and G. P. Clinton {Connecticut Htate 8tn. 

 Bui. I')!>. /o/(o). ^Directions are given for the preparation of a few of the 

 more important insecticides and fungicides. An alphabetical list is presented 

 of important agricultural crops with annotations on their most important 

 insect enemies and diseases and the methods of treating them. 



Drones, F. d'Autemarche (Apicultcur, 51 (1907), No. 10, pp. .'{17-/(20). — In 

 the opinion of the author it is probable that drones are of considerable value 

 in helping to increase the internal heat of the beehives. 



The ripening- and maturing- of honey, I. Hopkins (Aust. Bee Bui., 16 {1907), 

 No. 6, pp. 121-12-'i). — The water content of honey varies from 12 to 23 per 

 cent, being least in thoroughly ripe samples. It is of importance to mature 

 honey completely before placing it on the market, otherwise the high water 

 content may allow serious fermentation and destruction of the flavor. 



Analyses of beeswax, K. Dieterich {Phann. Post, J/O {1907), No. 3S, pp. 

 639-6-',l; Chem Ztg., 31 {1907), No. 79, pp. 987, .ONS ) .— The author shows con- 

 siderable differences in the physical and chemical characteristics of wax from 

 combs at different ages, from those freshly made to those 5 years old, and in- 

 cludes in the article some notes regarding bee resin or " propolis." 



Horizontal honey extractor, C. Jungfleisch {Apiculteur, 51 {1907), No. 9, 

 pp. 366-371, figs. 5). — A detailed description is given in connection with illus- 

 trations of a horizontal honey extractor suitable for use by the practical bee 

 raiser. 



The physiolog-ical influence of partial disinfection of the food of the silk- 

 worm, D. Lo Monaco {Arch. Fannacol. Spcr. e Sci. Aff., 6 {1907), No. 8-9, 

 pp. 'i't't-'i57). — For some time experiments have been made in testing the 

 effect of sterilizing mulberry leaves by the use of a dilute solution of fluorid of 

 silver and in feeding these disinfected leaves to silkworms. As a result of 

 this procedure the author observed an increase of 11 per cent in the weight of 

 the cocoons and a diminution of S per cent in the mortality of the silkworms. 



FOODS— HUMAN NUTRITION. 



Quality in wheat, C. E. Saunders {Canada Cent. Expt. Farm Bui. 57, pp. 

 1-36). — Using wheats grown in 2 seasons questions of quality with respect to 

 wheat and flour were studied, the samples being ground specially for the in- 

 vestigations in an experimental mill. Of the numerous varieties tested, Red 

 Fife stood first in the 2 years' work as regards baking strength, voliune, and 

 shape of loaf, Laurel ranking lowest the first year and Grant and Ebert the 

 second year. Of the varieties tested in l!)0G-7 the following yielded flour of 

 high strength: Bobs, Chelsea, JIarquis, Early Russian, (kitineau, Ilaynes Blue 

 Stem, Outlook, Hungarian White, Red Fern, and White Fife C. The author 

 states that Colorado, Herisson Bearded, and White Russian " are of rather low 

 strength and are, therefore, not suitable for the production of extremely light 

 bread or for export to countries desiring strong flour." 



