25 FEBRUARY 1888, Page 25

Essays on Health-Culture. By Gustav Jaeger, M.D. Edited and translated

by Lewis R. S. Tomalin. (Waterlow and Sons.)—" There is nothing like wool" is Dr. Jaeger's adaptation of an old saying (though leather is not absolutely excluded from human use). Indeed, it has been said that he invented a wool pill, which the German Government, always paternally anxious for the health of its subjects, summarily suppressed. We do not find any hint of an internal administration of the health-giving material ; but for every external purpose it should be used, and that, as far as possible, undyed. Even the collar must be made of "cashmere, or natural colour wool." It is true that wool collars shrink ; but "the owner of a sanitary woollen collar which has shrank by repeated washings to impracticable dimensions, has the consolation that he has derived from it an im- portant hygienic advantage." The pocket-handkerchief should be of wool ; here the only inconvenience will be that it will not serve for polishing an eye-glass. There may be some eccentricities in Dr. Jaeger's theories ; but that they are substantially true, and

that they are making an important change in clothing, is undoubted. All his goods sold in England are now made, we understand, in this country, so that the patriotic objection loses its validity.