The whole process and elaborate machinery of digestion are felt to be mean and humiliating when viewed in relation to our mere animal economy. But they rise into dignity, and assert their own supreme importance, when they arc studied from another station, viz., in relation to the intellect and temper; no man dares, _then_, to despise them: it is then seen that these functions of the human system form the essential basis upon which the strength and health of our higher nature repose; and that upon these functions, chiefly, the general happiness of life is dependent. All the rules of prudence, or gifts of experience that life can accumulate, will never do as much for human comfort and welfare as would be done by a stricter attention, and a wiser science, directed to the digestive system; in this attention lies the key to any perfect restoration for the victim of intemperance: and, considering the peculiar hostility to the digestive health which exists in the dietetic habits of our own country, it may be feared that nowhere upon earth has the reclaimed martyr to intemperance so difficult a combat to sustain; nowhere, therefore, is it so important to direct the attention upon an _artificial_ culture of those resources which naturally, and by the established habits of the land, are surest to be neglected. The sheet anchor for the storm-beaten sufferer, who is laboring to recover a haven of rest from the agonies of intemperance, and who has had the fortitude to abjure the poison which ruined, but which also, for brief intervals, offered him his only consolation, lies, beyond all doubt, in a most anxious regard to everything connected with this supreme function of our animal economy. And, as few men that are not regularly trained to medical studies can have the complex knowledge requisite for such a duty, some printed guide should be sought of a regular professional order. Twenty years ago, Dr. Wilson Philip published a valuable book of this class, which united a wide range of practical directions as to the choice of diet, and as to the qualities and tendencies of all esculent articles likely to be found at British tables, with some ingenious speculations upon the still mysterious theory of digestion. These were derived from experiments made upon rabbits, and had originally been communicated by him to the Royal Society of London, who judged them worthy of publication in their Transactions. I notice them chiefly for the sake of remarking, that the rationale of digestion, as here suggested, explains the reason of a fact, which merely _as_ a fact, had not been known until modern times, viz., the injuriousness to enfeebled stomachs of all fluid. Fifty years ago--and still lingering inveterately amongst nurses, and other ignorant persons--there prevailed a notion that 'slops' must be the proper resource of the valetudinarian; and the same erroneous notion appears in the common expression of ignorant wonder at the sort of breakfasts usual amongst