PROFESSOR SIMPSON, of Edinburgh, who has had a large and long experience in the medical treatment of mothers and children, gave a public address lately on matters of hygiene. He spoke most plainly to mothers, who send their children to the grave by exposing arms and legs, while other parts of the body are warmly dressed. Mothers, he continued, commit child-murder, and then wonder how God could be so unkind as to take away their darlings. They not only murder their children, but in his opinion commit suicide themselves, by exposing their own necks to the cold air. It was a puzzle which he could not understand, that women should cut off the top of their dresses and appear with bare bosoms, in refined society, while that part of the dress which should protect the heart and lungs and other vital organs, is trailing in the mud. Not to speak of health at the present moment, he would remark that the exhibition of a semi-nude bust seldom approaches to the classical standard of harmonious proportions of parts and fullness of outline, and is rarely suggestive of beauty and loveliness. The inquisitive observer feels himself quite at a loss to know the precise line of division between the part which fashion claims for exposure and the rest which modesty would conceal. The boundary is too changeable. More ought to be left to the imagination and less to be condemned by good taste. But if mothers and full-grown daughters insist on being the victims of fashion, children ought to be exempt from its insane and cruel requirements.—Sel.