Sir E. Home on progression, [208];
stimulating influence, [273];
anatomy of a rattlesnake, [275];
Vipera Caudisona, [276], et seq.;
Sir Hans Sloane’s experiments, [281];
early observations, [295];
a venerable cro., [302];
sloughing of reptiles, [331];
mobility of fangs, [370];
reserve fangs, [371];