94 



sporozoites hibernate, and from which the crescents move to the 

 sahvarj' glands in spring. Experiments in this connection can only 

 be carried out in a climate in which Anophelines can live for a long 

 period. 



Mayer (M.). Wandenmg der Malariasichelkeime in den Stechmiicken 

 und die Moglichkeit der Ueberwinterung in diesen. [The Move- 

 ments of Malaria Crescents in Mosquitos and the Possibihty of their 

 Hibernation in the latter.]— M^rf. Klinik, 1920, no. 50. (Abstract 

 in Arch. Schiffs- u. Tropen-Hyg., Leipsic, xxv, no. 2, March 1921, 

 pp. 64-65.) 

 Assuming that sporozoites in mosquitos might hibernate in places 

 other than the salivary glands, the author infected Culex with 

 Proteosoma in the autumn of 1919 with the intention of allowing the 

 mosquitos to hibernate. This was not possible, and earher examinations 

 had to be made. When four or five weeks had elapsed after infection, 

 sporozoites were found in the salivary glands and in the thoracic, head, 

 and leg muscles, and especially in the palpi. A second series of these 

 mosquitos was examined 48-52 days after infection, and only a few 

 isolated individuals were found in the muscles ; those in the salivary 

 glands already showed signs of degeneration, and there were no 

 sporozoites in the ovaries. 



NicoLLE (C), CuENOD (A.) & Blanc (G.). Transmission o£ Trachoma 

 by Flies. — Presse Med.. 20th December 1919. (Abstract in Ann. 

 d' Igiene, Rome, xxxi, no. 1, January 1921, p. 66.) 

 Flies that have been in contact with eyes infected with conjunctivitis 



are able to transmit the disease for at least 24 hours, and this is also 



the case if they have touched infected bandages within six hours of 



their removal from the affected eye. 



Paraf (J.). The Spread of Baeillary Dysentery by ^lies.—Rev. d' Hyg. 

 et de Police sanitaire, 1920, p. 24. (Abstract in Ann. d' Igiene, 

 Rome, xxxi, no. 1, January 1921, p. 66.) 



During an epidemic of dysentery atVineuil, the dysentery bacillus 

 was found in 12 out of 30 flies captured near the latrines, and in 7 out 

 of 36 captured in wards where cases of dysentery occurred. At table, 

 3 out of 38 flies harboured the bacillus. Milk for surgical cases 

 contained it 6 times out of 26, and bread, once in 12 times. 



Experiments were made to ascertain whether flies spread dysentery 

 more readily by means of their feet or by their dejecta. Tests with 

 artificially infected flies showed that the feet were infected twice out 

 of 16 times and the intestine 11 times out of 24. The bacillus remains 

 in the intestine up to five days after the first infection. 



Pricolo (A.) & Ferraro (G.). The Identification of the Trypano- 



somes in the Colony of Eritrea. — Clinica Veterinaria, Milan, 29th 



February 1920. (Abstract in Rev. Vet. e Zootechnia, Rio de 



Janeiro, x, no. 2, 1920, pp. 120-121.) [Received 28th March 1921.] 



The trypanosome found in Eritrean camels is Trypanosoma evansi 



[R.A.E., B, vii, 131]; this form also infects equines. Bovines are 



attacked by Trypanosoma vivax-uni forme. There is no reason for 



