FOODS^ — HUMAN NUTEITIOF. 159 



Observations on the life history of a new species of Psychoda, P. S. Welch 

 (Anti. Ent. Soc. Amer., 5 (1912), No. 4, pp. Ii^ll-Jt20, figs. 11). — A new species of 

 dipteron, here described as rsi/cJioda allnmaculata, was studied at the Chicago 

 Sewage Testing Station, where Uiey vA-ere found breeding in the sludge of the 

 sprinkling filters in great numbers. Collections from the filters often contained 

 all of the life stages from the egg to the adult. 



Stomoxys calcitrans, C. K. Brain {Ann. Ent. Soc. Amer., 5 (1012), No. //, 

 pp. J/21-432, figs. 17). — This paper consists of descriptive and biological notes 

 made in South Africa during the course of feeding experiments with the stable 

 fly in connection with the transmission of a trypanosome disease. It is stated 

 That in the laboratory of the Government Experiment Station, at Rosebank, 

 near Cape Town, over 40 per cent of the flies caught during a period of one 

 week were S. calcitrans, whereas in a living room, approximately 35 ft. away, 

 Musca domestica comprised as high as 95 per cent of the flies caught, and S. 

 caJcitrans represented less than 3 per cent of the whole. 



Wistaria gall fly (Agromyza schineri), E. O. Amundsen (Mo. Bui. Com. 

 Hort. Cal., 1 (1912), No. 10, pp. 730-733, figs. >}).— The author reports that some 

 40 or more wistarias in a shipment of several hundred from Japan were found 

 at inspection upon arrival to be infested by this gall fly. According to the tags 

 all of the infested plants producetl pink blooms while the healthy plants pro- 

 duced other colors. Descriptions are given of the several stages of this fly. 



The Psoroptes communis ovis. — Some observations on ova and ovipositing, 

 S. Stockman and A. H. Berry (Jour. Compar. Path, and Tlier., 26 (1913), No. 

 J, pp. 45-50, figs. 3). — The authors conclude from counts made of masses of eggs 

 from a known number of females that the average per female was considerably 

 above 15. The estimate reached as high as 30 in one observation, and it is 

 believed that the total number of eggs deposited by a single female may eveu 

 exceed that number. It was found that the laying period lasted much longer 

 than the hatching period. Several larvae hatched from eggs which had been 

 immersed in an arsefllcal dip for one minute, but none hatched from eggs which 

 had been immersed in a creosote dip for half a minute. 



FOODS— HUMAN NUTRITION. 



Mutton and its value in the diet, C. F. Langworthy and Caroline L. Hunt 

 (U. S. Dept. Agr., Fanners' Bui. 526, pp. 32^ figs. 2). — In addition to general 

 data regarding the nutritive value and digestibility of mutton, information 

 gathered in connection with the nutrition investigations of the Office of Experi- 

 ment Stations is summarized. A large number of recipes for preparing muttou 

 for the table, which have been studied and standardizetl, are given. 



In its composition and nutritive value mutton is practically the same as beef. 

 The average loss of weight in pi-eparing the two kinds of meat for the table is 

 also practically the same. However, there are cases in which mutton is the 

 more economical, since a side of mutton can be economlcafly purchased for 

 home use where a side of beef is too large for such a purpose. 



" jKdged by its composition, palatability, wholesomeness, digestibility, rela- 

 tive cost, and the number of ways in which it can be prepared for the home 

 table, mutton is an important foodstuff, which is well worth the attention of 

 the housekeeper who wishes to provide her family with an attractive and 

 palatable diet at a reasonable cost." 



Natural immunity in the development of fertile hens' eggs, V. Ru2;i6ka 

 (Arch. Hyg., 11 (1913), No. 7-8, pp. 369, 370).— The author notes the fact that 

 the fertilized hens' eggs which he was studying never became infected, although 



