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Transactions of the Boyal Society of South Africa. 
Post Mortem. — Blood partially coagulated. Heart in diastole. Endo- 
card Fxormal, lungs normal, stomach jfilled, normal; all other abdominal 
organs without any lesions. 
Conclusion. — The venom of Leptodira hotamboeia, or, better, its effective 
constituent, must have been absorbed by the nervous system. 
In another instance an emulsion of the maxillary glands of the red-lip 
snake did not provoke any sign of illness, when injected under the skin of 
a rabbit. The venom appears therefore to be more virulent for guinea-pigs 
than for rabbits, if the snake itself were under normal conditions. 
{b) Tarbophis semiannulatus . An emulsion of both maxillary glands of 
a young specimen produced no pathological appearances after subcutaneous 
injection into a small guinea-pig. 
(c) An emulsion of the right maxillary gland of Trimerorhinus tri- 
tceniatus (Giinther), striped " schaap-steekker," subcutaneously injected, 
killed a small guinea-pig (weight 150 gr.) in 15 minutes. 
Symptoms. — Salivation, masticatory movements, secretion from the 
lachrymal glands. 
Post Mortem. — Nothing particular. 
(d) Aparallactus capensis. Black-headed snake. An emulsion of the 
maxillary glands, subcutaneously injected into a small guinea-pig, pro- 
duced no symptoms of illness. 
{e) Psamophis sibilans. Hissing sand- snake. An emulsion of maxillary 
glands of 3 individuals injected subcutaneously into (1) a frog (Bana 
delalandi) ; (2) a small rabbit ; and (3) a small guinea-pig (weight 310 gr.). 
The frog and the rabbit did not become sick at all. The guinea-pig 
showed no symptoms for 50 minutes. After this time its respiration 
became quick and spasmodic. The animal laid down ; cramps of the hind 
legs and retarded respiration were the final symptoms. Death occurred 
1 hour after injection. 
Post Mortem. — No lesions. 
3. Proteroglypha. 
{a) Five drops of venom from Dendraspis angiisticeps, Mamba, were 
diluted with 1*5 c.c. 0'9 per cent, solution of NaCl, and the mixture was 
divided into 3 parts and injected into 3 rabbits (2 subcutaneously, 1 
partially subcutaneously, partially intravenously). 
Symptoms. — First rabbit. Quick jerky respiration, extension of the 
head, salivation, discharge of big white tears, cramps of the legs, paralysis ; 
death after 30 minutes. 
Second rabbit. Extension of the head, abundant salivation, jerky 
respiration, ataxy of hind quarters, stupid running forwards, cramps of 
the legs, paralysis ; death after 15 minutes. 
