16 



Itching beofins shortly after and the eruption develops in 24-48 

 hours. Another trial was made in the same way with mites 

 picked out of the dust and with the same result. Some persons 

 appear not to be affected by it. The eruption heals spontaneously 

 as soon as the subject of it ceases to handle copra. Beta-naphthol 

 ointment (5 per cent to 10 per cent.) has proved very useful in 

 treatment. 



Hirst describes the mite under the name of Tyroglyplius longior, 

 Gerv.. var. castellanii. var. nov. 



Parallel cases of eruptions caused by mites are to be found in 

 Growers' itch caused by Gljjryphagu.^ doviextleu.^, Gerv.. and the 

 water-itch of coolies on the Indian tea plantations, a serious com- 

 plaint enured by J^hizofjlyplnix pnraf:ificvs. Dnlcpetty. 



Letpek (E. T.). Metamorphosis of Fihnia loo. — Brit. Med. Jl. 

 4th Jan. 1912. pp. -^9-40. 



Dr. Leiper telegraphed from Calabar, Southern Xig-eria, on 

 the 27th Sept. 1912, to the London School of Tropical Medicine 

 that he had proved that the metamorphosis of Filar ia loa takes 

 place in the salivary glands of a fly belonging to the genus 

 (J]iry.<op.<. The diurnal periodicity of the embryos of this Filana 

 had suggested that the intermediate host was a day-biting insect, 

 and this now appears to have been established by Dr. Leiper. 



The importance of the discovery lies in the fact that it will 

 now be possible to determine the conditions under which human 

 beings become infected, and gives groimd for hope that means 

 for the prevention of such infection will be found. The member'^ 

 of the genus (1 try sops are day-biting ilies, and are very widely 

 distributed not only in tlie tropics biit also in temperate climates, 

 even in the British Isles. Dr. Leiper is expected to be able to 

 show which species of Chrysops is the carrier, as it is known tliat 

 FiJaria loa is limited to West Africa. 



[The only species of Chrysojys known from Southern Nigeria 

 iiieC. dinu'diafo, Wulp, .5?7/7rcfl. Aust. (probably a colour variety 

 of the preceding), and loiifjicornis. Macq., the two former being 

 abundant, especially in the Eastern Province, while Jon yi corn is 

 is comparatively scarce. — Ed.] 



PosENAU (M. J. I *!c Brues (C. T.). Some experimental observa- 

 tions on Monkeys concerning the transmission of Poliomyelitis 

 through the agency of Stomo.rys calcitmns. — Mthly. BuU. 

 State Bd. of Health, Massachusetts. N.S. Til. Xo. 9. Sept. 

 1912. pp. :3i4-317. 



The authors make a prelimiuarv report on woik still in progress. 



Twelve healthy monkeys were exposed to the bites of Stomoxys 

 calcitrans which had had abundant opportimity of biting infected 

 monkeys, with the result that three of them acquired the disease 

 in a virulent form, resulting in death : tliree were slightly 

 infected, and the remaining six escaped. 



