To his Australian confrères, more especially to those who adopted his method but had to practise it more or less empirically, the writer also owes a more elaborate explanation of his theory of the action of snake-poison in all its bearings on the various nerve centres than is to be found in the scattered writings he has from time to time published in our periodical literature. His warmest thanks are due to them for the records of cases they have furnished to the _Australasian Medical Gazette_, and to the Hon. J. M. Creed, its able editor, for the ample space he has invariably allotted to the subject, and the valuable support he has given him throughout. By our united efforts we have reared in a dark and hitherto barren field of research a column of solid knowledge, and on this column Australia now occupies the highest and will ever occupy the most prominent place. Not the least pleasing feature in the history of this discovery is the fact that it has been made without an elaborate series of experiments on animals, that it is a peaceful conquest not attained by means of doubtful justification, and which have hitherto invariably failed in their object. This object--the discovery of the coveted antidote--instead of being brought nearer, was, in fact, further removed by every succeeding series of experiments. However fruitful in results this mode of research has been in other domains, in this particular one it has not only been a failure but an actual bar to progress. Nature invariably refused to yield her secret when thus interrogated. The tortured animals, like the victims of Torquemada, either did not answer at all or they answered with a lie, and the baffled experimenter abandoned his task in despair. Still, these negative results notwithstanding, the writer is confronted by a certain class of would-be rigorous scientists, who tell him that his theory of the action of snake-poison, though it explains all the phenomena, cannot be accepted as correct until it has been proven so by strict test experiments on animals, and that the successful administration of the antidote is proof only of the fact of neither antidote nor snake-poison having killed the patients, who, probably, might have recovered if left to themselves. This may be strict logic, but common sense replies to it that if recovery takes place after proper administration of the antidote in cases which, according to all our previous experience, would have ended fatally, it is not illogical to assume that antidote and recovery stand in the relation of cause and effect. This sceptical attitude of the scientific mind can justly be maintained only with regard to cases limited in number and in which the symptoms left room for doubt as to their final result, but in view of the formidable and constantly increasing records of cures from snakebite during the last three years, it is, to say the least of it, unreasonable.