They send, chiefly, to members of the professions and men of means and position.

It is true that the original package might have been annexed by a clerk, office boy or domestic servant; but the probabilities are that X received the package himself, and this is borne out by the fact that he was able to obtain access to a powerful alkaloidal poison--such as this undoubtedly is." "In that case he would probably be a medical man or a chemist," I suggested.
"Not necessarily," replied Thorndyke.

"The laws relating to poisons are so badly framed and administered that any well-to-do person, who has the necessary knowledge, can obtain almost any poison that he wants.

But social position is an important factor, whence we may conclude that X belongs, at least, to the middle class.
"The fourth point relates to the personal qualities of X.Now it is evident, from this instance alone, that he is a man of exceptional intelligence, of considerable general information, and both ingenious and resourceful.

This cigar device is not only clever and original, but it has been adapted to the special circumstances with remarkable forethought.