202 



ni:ri)nr ok tuavem^inci pathologist 



It wiiiilil ii|iiPiar tlipreforc. tlmt tliis piinisite is not identical witli Jl. Zii uinnni, but is 

 a luw s|H(its. Dr. liaviiiin lias kinilly oxaniint'tl it and considers that I may safely treat 

 it as such. I'r. JSMlfmir has suggested that it lie provisionally named H. Neavei. 



Miimnn bloo<l 



Hlootl of wild 

 maniinals 



Mammalian IJi n 



'I'lic iiivcstigatidiis iiiadc ill respect nf Miiiiimiaiiaii M I yitlilcil negative results, 



except in the case df malaria in man, ami t r\ ]ianosonies in the iiiulis from tlie war 

 expedition. 



Miin. — No extracorpiiscular parasites were fouinl with the exception of tlie trvpaiiosoines 

 already mentioned in the L'gaiida boy. Nearly all the chililren's blood exaiuined, contained 

 a few tertian malaria parasites, and these were also present in a few of the adults. At the 

 hospital in Tautikia the blood of six soldiers was taken, in wlmli tin- typiial tertian parasite 

 was found, and one with both tertian and ipiartan. 



All the men, except myself, in my expedition, were down from time to time with inaluna, 

 but answered at once to (piinine treatment. 



I txaiiiiiicd a lar-^c numlicr of slides of liluod fi-um tiic aiitrlu|i(S and iitlici- wild 

 maninials that existed on my line of march, but found no parasites in the peripheral blood, 

 either in the regions of the O/osnina moi:sitnii-% or elsewhere. I strongly suspect that the 

 main reservoir of nagana exists in the young of these animals, exactly as malaria does in the 

 young of ihr huiriaii being.* It is reasonable, 1 think, to suppose tliat the infection takes 

 place earlv, and that the adult attains a large measure of imiinuiity thereby. It is unlikely, 

 but possible, that voung calves might have mort' resistance than ohler cattle and might acquire 

 an immunitv in the same way. An expenineut with a few young calves, donkeys, etc., might 

 easily be made in Khartoum, 



Amongst the animals examined were: — 

 Kongoni. Uribi. 



hush liuck. Rat. 



llipiHiputamiis Donkey 



(loat. lieil. 



Insects 



A collection was maili', but nut in tlie i|iiaiitity I had hoped, in consequence of my 

 having to attend U> MikmI \\(]rk, and being unable to make the natives collect. 



This colleetion was more tjnin half destroyed in its transit to England, but there still 

 remains a residue of which I hope to render an account in time for the next ' liaburatories' 

 Keport. I hope also, to include details as to a private collection I made the year before. 



Specimens 

 secured 



DirTKKA 



The following Diptera in good condition were secured. Although a few others were 

 obtained they were much damaged in their transit to England, and are useless for description : — 



1. Tuhitniis (lorsivilta or viri/atiis (Austen). 



2. Tabanns par. 



• Koch hiui ngtkin drawn attention to the paucity of trypauoBomcs in the blood of infected big game, and 

 quite recently liu," migKChtcd that a itpccial developmental form adapted for the tsetse tiy may yet be found in 

 antelopeii or buOaloea, — (A, B,) 



