366 EXPERIMENT STATION EECOED. [Vol.35 



tanicus n. sp. and Apterotrix longiclava n. sp. were reared from the oyster shell 

 scale at Manchester, England. 



Ticks of the Belgian Kongo and the diseases they convey, G. H. F. NuTTAii 

 and C. Warbubton {Bui. Ent. Research, 6 {1916), No. 4, pp. 813-S52, figs. 48).— 

 This paper, prepared at the request of the Belgian authorities, includes a brief 

 resume of the classification of ticks, with a short illustrated account of the 

 species occurring in the Kongo, discussions of the general biology of ticks and 

 the special biology of those occurring in the Kongo and their relation to disease, 

 instructions for rearing ticks, etc. 



The life cycle of Trypanosoma brucei in the rat and in rat plasma, R. 

 Ebdmann {Proc. Nat. Acad. Sci., 1 {1915), No. 10, pp. 504-512, figs. 7).— The 

 author's investigations have resulted in the discovery of dimorphic forms, latent 

 or round forms, and crithidia-like forms in T. briicei outside of the invertebrate 

 host. 



FOODS— HUMAN NUTKITION. 



A sanitary study of condensed milk, W. H. Park, M. C. Schboedeb, and 

 P. Baetholow {N. Y. Med. Jour., 102 {1915), No. 22, pp. 1078-1083, figs. 10).— 

 The investigation herein reported concerns the bacterial content of the milk 

 used in preparing condensed milk; the process used in condensing milk with 

 reference to its effect on the bacteria; and a bacteriological and chemical ex- 

 amination of the finished product. 



Evaporated milk contained fewer bacteria than condensed milk, probably 

 owing to the higher temperature used in its manufacture. Sweetened condensed 

 milk showed the following variations in composition : Cane sugar, from 33.15 to 

 49.85 per cent ; milk sugar, 7.57 to 15.34 per cent ; and protein, 6.73 to 13.59 per 

 cent. 



The data of the experiments and clinical observations are summarized in 

 part as follows: 



" The value of sweetened condensed milk depends upon the care and cleanli- 

 ness used in manufacture. 



" There is a want of evidence that the bacteria or chemical constituents are 

 capable of affecting the health. Only the use of the best quality of sweetened 

 condensed milk is to be commended in the feeding of infants. 



" Sweetened condensed milk, when carefully prepared from whole milk, has 

 special indications as an infant food. They may be thus expressed : Many 

 infants are unable to digest the fat of cow's milk, even when two or three vol- 

 umes of water are added. In such cases the half digested curds of casein are 

 vomited. The change in these circumstances to sweetened condensed milk 

 allays the vomiting. These facts are well established clinically. 



" Sweetened condensed milk has generally a constipating effect." 



The opposite view that it produces diarrhea .?eems to be wanting in evidence. 



" Clinical evidence . . . [indicates] that the intestinal irritation caused 

 by milk is an effect of the action of the liquid portion, when freed of fat, sugar, 

 and protein." 



The water content of meat products, E. Fedee {Chem. Ztg., 40 {1916), No. 

 21, pp. 157-160).— A controversial article (E. S. R., 34, p. 365). 



Annual report of the Commissioner of Fisheries to the Secretary of Com- 

 merce for the fiscal year ended June 30, 1915, H. M. Smith {U. S. Dept. Com., 

 Bur. Fisheries Doc. 827 {1915), pp. 83). — This report contains general informa- 

 tion and data regarding the quantities and values of food fish products landed 

 at various places. 



