which was most probably due to an injury of the sciatic nerve through the injection. 
This paralysis, however, passed off very gradually, and after two and a half months 
the mobility of the leg was normal. On July and and 3rd, the acetylated Atoxrl 
injections were repeated, and on July 15th and 16th the intra-muscnlar injections 
of Sublimate. The animal is still alive, and parasites have never been seen since 
the first inoculation. The blood is normal, and the weight is at present 
ak. 895 gra. 
Experiment III. — Cereopithteui callithntut, ? , weight 3 k. 600 gm., was 
inoculated on April 28th, 1908, with T. gambitnst. Treatment was started on 
June 6th, the time of the third relapse. 0M5 gm. of acetylated Atoxrl was 
administered. This injection was repeated on June lolh, and followed on 
June i8th and 19th by intra-muscular injections of o-ors Sublimate. The 
Atoxyl injections were repeated on July and and 3rd, and the Sublimate injections 
on July 15th and i6th. This animal is still alive; parasites have never been seen 
since the treatment was started. The blood count is at present normal, and the 
weight, which had increased by July 2ist to 3 k. 850 gra., has remained constant 
since November at 3 k. 600 gm. 
Experiment IV. — Cercofithecus eallithrirui, S , weight 1 k. 800 gm., was 
inoculated on April 28th. Treatment was started on June 3rd with injections of 
o-igm. of acetylated Atoxyl, followed by an administration on June Sth of 
o-o: gm. of Sublimate in pill form, by the month. A very severe attack of diarrhoea, 
which lasted from June 9th — 12th, followed this medication : the stools w’ere slimy 
and haemorrhagic. On June 18th and iQth, 0*1 gm. of acetylated Atoxyl was given, 
followed on June 23rd by one injection of 0-03 gm. of Sublimate. On July and 
and 3rd, 0*1 gm. of acetylated Atoxyl was given, followed on July 15th and i6tli 
byo'oi of Sublimate, intra-muscularly. The Subl'inate injections were not followed 
by any untoward effects. The animal is still alive ; parasites disappeared after the 
first injection of Atoxyl, and have never been .seen since. The blood is normal, 
and the weight 2 k. 100 gm. 
Expebi.ment V. — Cereopithecus callithricus, 2 , weight 1 k. goo gm., was 
inoculated on April 28th. At the time of the second relapse on June 3rd, treatment 
with acetylated Atoxyl was begun. Two injections of o’l gm. on June 3rd and 4th 
were followed by an administration of o-i gm. of Sublimate in pill form by the 
mouth. In this case, as in Experiment IV, a very severe diarrhoea with slimy and 
haemorrhagic stools occurred, which, however, passed off in a few days. The 
Atoxyl injections were repeated on June i8th and 19th, followed on June 26th and 
27th by an mtra-muscular injection of i c.c. of Donovan’s solution. On July 2nd 
and 3rd the Atoxyl injections were repeated, followed on July 15th and 16th by 
an injection of i c.c. of Donovan’s solution. The parasites disappeared from the 
peripheral circulation of the animal after the first injection, and were never seen 
again. The animal was found dead on July 17th. The post-mortem showed fatty 
wifh”w^n^" slightly enlarged, of firm consistence, 
ell-marked hypertrophic malpighian follicles. The kidneys were enlarged 
congested, the cortical substance was not defined from the meduliary 
ubstance, and haemorrhagic stripes intersected the yellow cortical substance. 
kidnevrSo^-i degeneration of the liver cells; the 
of the animal ®cction a Well-marked parenchymatous nephritis. The death 
of the animal was due m all probability to Mercury poisoning 
Experiment \n.— Cereopithecus callithricus, 2 weight 2 k 750 gm., was 
wkW vie Treatment wL started on June iSth 
rnermZn, ^ treatment at an early stage can effect 
repeated on Tim*. 8^1,^ acetylated Atoxyl was given, and the same dose 
ment disaon* a parasites, which were fairly numerous before treat¬ 
ment. disappeared promptly. In this case, however, the acetylated Atoxyl 
