FOODS NUTRITION. 1099 



Insecticides and fungicides, A. B. Cordley {Oregon Sta. Bui. 75, pp. 21-4S). — 

 Tlie nature of insecticides and fungicides is briefly discussed and notes are given on 

 the methods of preparation and application of the better known substances of these 

 classes. A brief list of plants is given in alphabetical order, with notes on some of 

 the more important insect and fungus diseases to which they are suV)iected and 

 recommendations regarding means of controlling these pests. 



Paris green, W. C. Stubbs {Louisiana Stas. Bui. 73, 2. ser., pp. 174-176, 190, 

 191). — The results of examinations of 71 samples under the provision of the State 

 law are reported. 



Contribution to the knowledge of Anopheles, W. Donitz {'/Anchr. Ilyg. u. In- 

 fedionskmuk:, 41 {1902), No. /, i>i>. 15-S8, ph. „^).— Detailed biological descriptive 

 and economical notes are given on a number of species of Audpheles collected from 

 various tropical localities. 



The structure and biology of Anopheles maculipennis, G. H. F. Nuti^all 

 and A. E. Shipley {.Jour. Ilijg. [Camhridgc], 2 {190/), Xo. 1, pp. 58-84)- — Notes on 

 the resting position of the adult, the geographical distribution of the species, habi- 

 tat, modes of dissemination, migration, hibernation, longevity, egg laying, number 

 of generations, food, and influence of heat, cold, light, color, and sound upon the 

 mosquitoes. A brief bi])liography of related literature is appended to the article. 



Characters of some mosquito larvae, J. B. Smith {Ent. News, 13 {1902), No. 10, 

 pp. 299-303, pi. 1). — Extensive collections of mosquitoes were made for the purpose 

 of studying the anatomy and hal)its of the larvae. Notes are given on the characters 

 and habits- of the larva' of a num]>er of species. 



Notes on the early stages of Culex canadensis, J. B. Smith {Ent. News, 13 

 {1902), No. 9, pp. 267-273). — This species is said to be a common one in moist 

 woodlands of New Jersey. Brief notes are given on the habits of the larv;e, which 

 is said to prefer woodland springs and pools or ditches carrying spring water. The 

 author never observed the larv;« in stagnant open water. A detailed description is 

 given of the larvse of this species. 



Selecting the locality for an apiary, R. Beuhne {Jour. Dept. Agr. ]lctoria, 1 

 {1902), No. 9, pp. 90S, 56*5').— Attention is called to the effect of locality, and espe- 

 cially of the honey plants upon the color and other characters of the honey obtained. 

 The author enumerates a number of i:ilants which are valuai)le in the production 

 of honey. Bee raisers are advised to locate their apiaries near red gum, yellow 

 box, and gray box. 



A scent-producing organ in the abdomen of the worker of Apis mellifica, 

 F. W. L. Sladen {Ent. Mo. Mag., 2. ser., 8 {1902), No. 153, pp. 208-211, Jig. i).— In 

 studying the phenomenon of humming in bees the author was led to investigate an 

 abdominal organ in workers which was described by Nassanoff in 188.3. It was 

 found that this organ was capable of emitting a peculiar odor which may be of use to 

 the bees in signaling to one another. 



FOODS NUTRITION. 



Experiments on the metabolism of nitrogen in man, E. Landercjeen {Skand. 

 Arch. Physiol, 14 {1903), No. 1-3, p>p. 112-175, pi. 1).— Experiments with man are 

 reported which were made with the special object of learning the minimum amount of 

 protein required. In general the diet contained a limited amount of protein with an 

 abundance of carbohydrates, or fat or both, to supply energy, while in one case the 

 subjects fasted. 



When a limited amount of protein was supplied under the experimental conditions 

 the body reached after a few days a condition when apparently not more than 3 or 4 

 gm. of nitrogen was metabolized per day. Provided a minimum quantity of carbo- 

 hydrates is present, the amount not being definitely known, the author regards it 



