202 
of the trypanosomes wiU. an infection of T. gamiunse. After 4 , 
mulhphcation has proceeded for some time, two norma] change 
the nuel us" th ‘ " budding off of a mats ta 
second oh ■ ’ J ^ eventually disappearing altogether. Tk 
second obviously corresponds to the formation of the stainable band 
T I- the case of 
bud X T “'t ptodtetion of a iaige 
rapIdlCT “tra-nuclear ceiitrosome. The U 
nudels TX h- T'"’- •'^‘“Ched, and passes towards the 
subse“ V 1 pass through divisions, and 
of prctoplaL A v!^T related to a loogned 
extra nuclea ^ appears in relation to the nucleus The 
flageUum, becomes detach^InraT''’ 
a new extra nn/>i ' ^ iarg-e round body remains whereifl 
some divides at7 T T extra-nuclear centre 
double flagellated forarob Pfot^ttoed. Tiiese large round 
gambiense but n ' ''^°usly correspond to the latent bodies of 
the rats at or about Ui”^ '''*^“36 invariably kills 
completely the traiocet we have as yet been unable to follow 
somes once more of Ihe large latent bodies into trypano- 
to divide up and to r bodies seem, however, in the first place 
correspond to time#* smaller forms, which latter probably 
shall see. ocurnng jn the life cycle of T. lewisi, as we 
T Icwi 
of the world, but is rarelv blood of wild rats in all parts 
Js usually non-pathoPenetir°^”^ *^^ood of tame white rats It 
morphology of the organism ^ ^ large parasite. The 
in the blood, have been t 'd ” ''^rious forms which it assumes 
durin g recent years.* Wim, several authors independently 
- en^j^ has become infected with T. Imisx, 
Wasielewski and Serin ' • . twrectionskrankheilen, VoL 
fiir InCecUonsknuiklieiten, Vel. 
Pro«i;cck!' s"i?clieii^£“q^^ and T,yJ>anosoma bruai. 
VoI.XXlI, No 3^'^®““8«l>ierln-pai7osoinen ArK , 
• -Arb. a. d. iv.iisetl, Gesondheitsamtei 
