160 



These facts seem to confirm the " imicist " doctrine of Laveran and the 

 possible duality of the parasites of tertian benign and tertian mahgnant 

 forms hinted at by Billet. The subject offers a vast field for further 

 investigation. 



Berlese (A.). Insetti delle Case e deir Uomo e Malattie che diffondono. 



[The Insects infesting Houses and Man, and the Diseases they 

 spread.]— MZaw, Ulrico Hoepli, 1917, xii + 293 pp., 100 figs. 

 [Price Lire 450.] 



In this manual the insects infesting man and his dwellings are 

 divided into parasites, including mosquitos, bugs, fleas and other 

 blood-suckers; commensals, including house-flies; guests, including 

 cockroaches, termites, grain pests, etc. ; and auxiliaries, the last-named 

 being spiders, etc., predaceous on the noxious species. The text is 

 clear and concise and is illustrated with one hundred figures. Besides 

 an index to the insects in order of pagination there is another which 

 groups them according to the surroundings in which they live. These 

 features, together with the practical nature of the control measures 

 advised, render this manual one of the best of those designed for 

 general use. 



MiYAsmMA (K.) & Okumura (T.). Trombidium akamuslii and allied 

 Forms, a comparative Study of the various Mites found in Japan. 



— Saihin Gaku Zasshi [Jl. of Bacteriology], no. 254, 20th 

 November 1916, pp. 5-38, 5 plates. [Abstract in China Med. JL, 

 Shanghai, xxxi, no. 4, July 1917, pp. 338-345.] 



The first portion of this article is a review of the history of the 

 study of these mites in Japan, with a general description of the 

 morphology of the group. A description of the various species that 

 have been collected in the infested districts is given, with some account 

 of the different stages of their life-history ; eleven different species 

 are recorded, of which six were successfully carried through the larval, 

 nymph and adult stages. So far as known, none of these are the 

 transmitters of any disease to man. 



Herms (AV. B.). Malaria and Mosquito Control.— (7a?. State Bd. 

 Health, Sacramento, Special Bull. no. 9, 15th December 1916, 

 20 pp., 6 figs. [Keceived 28th August 1917.] 



This bulletin describes the history of the malaria parasites in the 

 blood and of their transmission by mosquitos. The distinguishing 

 features of Culicine and Anopheline mosquitos are described, with 

 "^ photographs. The breeding habits and life-history of mosquitos are 



dealt with and the essentials for the control of the Anophelines are 

 given. The difficulties of rice cultivation under malarial conditions 

 are discussed [see this Review, Ser. B, v, p. 142]. A copy of the 

 Mosquito Abatement Districts Act is given and the establishment 

 of several Abatement Districts recorded [see this Review, Ser. B, 

 v, p. 143]. 



