i918] FOODS HUMAN NUTKITION. 865 



In control work good results were obtained with carbon bisulphid. The in- 

 fested parts of rows were covered with a 30 ft. strip of canvas or cloth sheeting 

 made gas-tight by painting with linseed oil, under which at intervals of 5 ft. 

 saucers, each containing § oz. of carbon bisulphid, were placetl. When neces- 

 sary, the canvas was raised above, the saucers by wooden props to allow of free 

 evaporation and made air-tight at the edges by earth shoveled on it. The fumes 

 penetrate the soil to the depth of several inches and kill the adults, larvte, and 

 pupaj, as well as wireworms, tipulids, and other insects. It is best applied dur- 

 ing the few days after the crop is gathered, before migration and egg-laying 

 begin. 



The agricultural situation for 1918. — IV, Honey. — More honey- needed 

 (U. S. Dept. Agr., Off. Sec. Circ. 87 {1918), pp. 8).— Attention is called to tlie 

 importance of enlarging the number of colonies of bees wherever possible. The 

 opportunity for expansion of beekeeping is pointed out and the factors in suc- 

 cessful beekeeping brielly considered. 



Rearing queen bees in Porto E,ico, R. H. Van Zwaluwenbukq and R. Vidal 

 (Porto Rico Sta. Circ. 16 (1918), pp. 12, figs. 5). — This circular, which is based 

 largely on Bulletin 55 'of the Bureau of Entomology of the U. S. Department of 

 Agriculture (E. S. R., 17, p. 8S5-), gives directions for the rearing of que©n bees 

 in Porto Rico. It is pointed out that degenerated stock is the principal caase of 

 poor houjey production in Porto Rico, and that this fault can be remedied only 

 by the introduction of fresh stock to -be used as a basis for improving the stand- 

 ard of the apiary by constant and intelligent selective queen breeding. 



Bee disease control, E. G. Cabr (N. J. Dept. Agr. Circ. S (1917), pp. 30, pis. 

 11). — A report upon the occurrence of and control work with bee diseases in 

 New. Jersey, accompanied by maps which show the results of bee inspection 

 work for the years 1912 to 1916, inclusive. 



On three new parasitic acari, S. Hibst (Ann. and Mag. Nat. Hist., 8. ser., 

 20 (1911), No. 120, pp. JfSl-JjSJt). — Chirodiscoides cavioe n. g. and n. sp. from the 

 guinea pig, Deinodex muscardini n. sp. from dormice (Mtiscardinus avella- 

 narius), and D. erinacei n. sp. from an English hedgehog are here described. 



Scale feeding- habits of a Porto Rican milliped, Rhinocricus arboreus, 

 R. T. Cotton (Jotir. Dept. Agr. P. R., 1 (1917), No. S, pp. 175, 176).— This milli- 

 ped has been found to feed upon scale insects in Porto Rico, the purple scale 

 being preferred. 



FOODS— HUMAN NUTRITION. 



Commercial stocks of miscellaneous animal food products in the United 

 States oil August 31, 1917 (U. S. Dept. Agr., Office Sec. Circ. 101 (1918), 

 pp. 19, figs. 15). — "Commercial stocks of cured hams, bacon, and shoulders in 

 the United States on August 31, 1917, the date of the preliminary War Emer- 

 gency Food Survey, were approximately 488,000,000 lbs. Nearly 85 per cent 

 of these stocks were held by the meat packers. . . . 



" The reports giving data for both August 81, 1917, and August 31, 1916, In- 

 dicated an increase of 0.8 per cent in the total holdings. This net increase was 

 due almost entirely to an increase in the holdings of storage warehouses. 



" The stocks of cured and salted pork amounted to 215,000,000 lbs., the meat 

 packers holding nearly 75 per cent of the total. . . . The stocks reported for 

 1917 were 5.5 per cent larger than those reported for 1916. 



" The stocks of salted and cured beef amounted to 57,000,000 lbs., of which 

 nearly seven-tenths were held by the meat packers. ... A 35 per cent increase 

 in total stocks of the United States was indicated for the year ending August 

 31, 1917. 



