469).

"At Williams College, Harvard, Johns Hopkins and Clark," the same distinguished teacher observes (ib., p.

465), "I have made it a duty in my departmental teaching to speak very briefly, but plainly to young men under my instruction, personally if I deemed it wise, and often, though here only in general terms, before student bodies, and I believe I have nowhere done more good, but it is a painful duty.

It requires tact and some degree of hard and strenuous common sense rather than technical knowledge." It is scarcely necessary to say that the ordinary teacher of either sex is quite incompetent to speak of sexual hygiene.

It is a task to which all, or some, teachers must be trained.