1918] POODS — HUMAN NUTBITION. 63 



A new American parasite of the Hessian fly (Mayetiola destructor), P. B. 

 Myebs (Froc. U. S. Nat. Mus., 53 (1911), pp. 255-257) .—Polygnotus vernalis, 

 reared in great abundance from Hessian fly puparia collected at various locali- 

 ties in Maryland, Pennsylvania, and West Virginia, is here described as new. 



Adult hymenopterous parasites attached to the body of their host, C. T. 

 Bkues {Proc. Nat. Acad. Sci., S (1911), No. 2, pp. 136-UO, fig. i).— Under the 

 name TLepidoscelio viatrix the author describes a new scelionid, the females of 

 which were received from Walajanagur in South India attached by the jaws 

 to the abdomen of the common Jola or Dekkan grasshopper (Colemania sphe- 

 narioides) at the sutures. This habit of attaching to the body of the locust 

 appears to be for the purpose of finding the eggs of the host more readily. 



The type species of the genera of the Cynipoidea, or the gall wasps and 

 parasitic cynipoids, S. A. Rohweb and Mabqabet M. Fagan [Proc. V. S. Nat. 

 MU&,, 53 (1911), pp. 351-^80). 



The red spider on cotton and how to control it, E. A. McGregob {V. S. 

 Dept. Agr., Farmers' Bui. 831 (1911), pp. 15, figs. 12). — This is a revision of 

 Farmers' Bulletin 735, previously noted (E. S. R., 35, p. 468). 



New species of economic mites, H. E. Ewing (Jour. Econ. Ent., 10 (1911), 

 No. 5, pp. If91-501, figs. 2). — Seven species of mites are here described, six of 

 which are new to science, namely, Tetra/nychus uniunguis from arbor-vitse at 

 Urbana, 111. ; T. multidigituli from the bark of honey locust at Wooster, Ohio ; 

 ScMzotetranychus latitarsus from bamboo at Pasadena, Cal. : Caligonus mali 

 from apple leaves at Hillsboro, Oreg. ; Hypoaspis armatus from lemon leaves 

 at Whittier, Cal. ; and Monieziella hiptmctata from the base of buds of filbert in 

 Oregon. 



FOODS— HUMAN NUTRITION. 



Report on canned vegetables, W. D. Bigelow (Jour. Assoc. Off. Agr. Chem., 

 1 (1911), No. 1, pp. 1-21). — Tables are given showing the results of analysis of 

 the juice pressed from raw and cooked tomatoes, of different degrees of maturity 

 at various times throughout the season ( to show the effect of rainfall ) , tomatoes 

 from blighted vines, and of different varieties of canned tomatoes. The drained 

 solids, sugar as invert, acid as citric, sugar in solids, and acids in solids are 

 given. 



There was a higher percentage of sugar in the juices and a higher percentage 

 of acid in the seed cavities. The solids increased as the tomatoes matured. No 

 definite conclusion was warranted as to the relation between composition of 

 tomato and amount of rainfall. The blighted vines had a light yield with fruits 

 that had about the same composition as green fruit at the same stage of 

 maturity. Variation in duplicate cans of tomatoes was as great as 10 per cent 

 of the amount of total solids present. 



Methods for analysis of tomato pulp are given. 



The adequacy and economy of some city dietaries, H. C. Sherman and 

 Ltjcy H. Giulett (N. Y. Assoc. Imp. Condition Poor Pub. 121 (1911), pp. 32). — 

 One hundred and two studies were made, 87 in New York City and the rest in 

 different parts of the country. Ten nationalities were represented and the 

 study extended over 12 months in 1914-1915. 



One-fourth of the families spent less than 25 cts. and one-fourth more than 40 

 cts. per day per person for food, with the greatest frequency from 25 to 35 cts. 

 Thirty-six per cent of the diets were below 2,500 calories, 59 per cent were be- 

 low 3,000 calories, and 76 per cent below 3,500 calories per man per day. The 

 cheapest dietaries averaged 78 gm. of protein, with only 13 per cent below 75 

 gm. Of those getting 3,000 calories, 30.5 per cent were below the standard for 



