Vomiting is often so excessive as to be provocative of most serious issue and even warranting the induction of abortion.

This fact is well known and has been thoroughly discussed, but with it is associated an interesting point, the occasional association of the same symptoms sympathetically in the husband.

The belief has long been a superstition in parts of Great Britain, descending to America, and even exists at the present day.

Sir Francis Bacon has written on this subject, the substance of his argument being that certain loving husbands so sympathize with their pregnant wives that they suffer morning-sickness in their own person.

No less an authority than S.Weir Mitchell called attention to the interesting subject of sympathetic vomiting in the husband in his lectures on nervous maladies some years ago.