Five weeks ago to-day the idea of writing an essay upon the physiological effects of Tobacco and Alcohol had never occurred to us. Nevertheless, the study of physiology and pathology—especially as relating to the action of narcotic-stimulants upon nutrition—has for several years afforded us, from time to time, agreeable recreation. And being called upon, in the discharge of a regularly-recurring duty, to review Mr. Parton's book entitled "Smoking and Drinking," it seemed worth while, in justice to the subject, to go on writing,—until the present volume was the result.

This essay is therefore to be regarded as a review article, rewritten and separately published. It is nothing more, as regards either the time and thought directly bestowed upon it, or the completeness with which it treats the subject. Bearing this in mind, the reader will understand the somewhat fantastic sub-titles of the book, and the presence of a number of citations and comments which would ordinarily be neither essential nor desirable in a serious discussion. Had we been writing a systematic treatise, with the object of stating exhaustively our theory of the action of Tobacco and Alcohol, we should have found it needful to be far more abstruse and technical; and we should certainly have had no occasion whatever to mention Mr. Parton's name. As it is, the ideal requirements of a complete statement have been subordinated—though by no means sacrificed—to the obvious desideratum of making a summary at once generally intelligible and briefly conclusive.

The materials used especially in the preparation of this volume were the following:

Anstie: Stimulants and Narcotics. Philadelphia, 1865.

Lallemand, Duroy, et Perrin: Du RÔle de l'Alcool et des AnesthÉsiques. Paris, 1860.

Baudot: De la Destruction de l'Alcool dans l'Organisme. Union MÉdicale, Nov. et DÉc., 1863.

Bouchardat et Sandras: De la Digestion des Boissons Alcooliques. Annales de Chimie et de Physique, 1847, tom. XXI.

Duchek: Ueber das Verhalten des Alkohols im thierischen Organismus. Vierteljahrschrift fÜr die praktische Heilkunde. Prague, 1833.

Von Bibra: Die Narkotischen Genussmittel und der Mensch. NÜrnberg, 1855.

And the works of Taylor, Orfila, Christison, and Pereira, on Materia Medica and Poisons; of Flint, Dalton, Dunglison, Draper, Carpenter, Liebig, Lehmann, and Moleschott, on general Physiology; several of the special works on Tobacco mentioned in the Appendix; and the current medical journals.

Oxford Street, Cambridge, November 23, 1868.

TOBACCO AND ALCOHOL