its effects than the chemical specifics (stramonium smoke, etc.) that relieve the spasm for a few minutes without preventing the risk of a speedy relapse. And it is a curious and almost unaccountable fact that smoke, dust, and other impurities of the indoor atmosphere, rather enhance the effectiveness of the prescription for that special purpose. The most plausible guess at the rationale of that experience is the conjecture that the aforesaid admixtures of the indoor air oblige the lungs to effect the work of expulsion by opening some gate which incidentally relieves the spasm of the asthma-fit. Always provided that the remedy is applied only at long intervals and in moderate doses. An excess of dust, breathed day after day, clogs the tissue of the lungs to an irremediable degree, and millers are notoriously subject to chronic asthma in its most incurable, if not most distressing, forms.
The poet-philosopher Goethe remarks that every brain-worker should consult his sanitary interests by following some mechanical trade as a by-occupation, and the successor of Frederic the Great made that advice a pretext for establishing the rule that every prince of the House of Prussia must serve an apprenticeship at some
