I am afraid that my experience can be of little use to you, because I have lived a very uniform life; and am therefore unable to compare the consequences from following various regimes.. I use alcoholic beverages moderately. I do not think they ever assisted or retarded my mental work. As for tobacco, it is the object of my aversion, as it must be to all non-smokers to whom the habits of the consumers of the weed must always appear more or less as an impertinence. Besides, it is difficult to imagine how the use of narcotics can be indulged in with impunity to the health.

J. P. JOULE.
February 11, 1882.