The fatal dose, in case of accident, is indicated by the notched slip of paper attached to the bottle.

Two fluid drachms of the poison (more than enough to produce death) were accidentally taken in my experience.

So gradual is the deadly effect that, after a delay of thirty-six hours before my attention was called to the case, the administration of the antidote proved successful.

The doses are to be repeated----" The remaining instructions, beginning with this last sentence, were not of a nature to excite suspicion.

Taken by themselves, they might refer to nothing more remarkable than a remedy in certain cases of illness.