[33] The inferences are given in Dr Beaumont’s own words, and the italics also are his. It is needless to say that Dr Beaumont does not present these inferences as _discoveries_. Most of them were known before; but he has the merit of adding greatly to the strength of the evidence on which they rest, and of substituting certainty for doubt in many instances. The very title of “Inferences” which he modestly gives them, implies that he does not even consider them as proved, and still less as discoveries; although a learned reviewer of the first edition charges him with this presumption. [34] Principles of Physiology, &c. chap. ii [35] Londe, Elemens d’Hygiène, tome ii. p. 16. [36] Bubbles from the Brunnens of Nassau. [37] See the Principles of Physiology, &c. chap. iii. p. 87. [38] Respecting the proper regulation of exercise, see The Principles of Physiology, chap. iv. p. 144. [39] Beaumont’s Observations, &c., p. 63. [40] Transylvania Journal of Medicine for September 1832, p. 313. See also Dr Caldwell’s excellent Thoughts on Physical Education, and the True Mode of Improving the Condition of Man; reprinted for A. and C. Black, Edinburgh, 1836. [41] Abercrombie on Diseases of the Stomach, &c., 1st edition, p. 72. [42] The Art of Prolonging and Invigorating Life. 3d ed., p. 168. [43] Art of Invigorating, &c., p. 171. [44] Heidler. Marienbad, et ses differens moyens curatifs dans les maladies chroniques, p. 62. [45] Principles of Physiology, &c. chap. vii. p. 256, and chap. x. p. 372. [46] Londe, Elemens d’Hygiène, vol. ii. p. 161. [47] Smith’s Philosophy of Health, Chapter IV. [48] Clark on Consumption and Scrofula, p. 823. [49] On this and kindred subjects, the reader will find much valuable information in Dr Brigham’s Remarks on the Influence of Mental Cultivation and Mental Excitement upon Health; reprinted, with excellent practical Notes, by Dr Robert Macnish. 2d edition, Glasgow, 1836. [50] Clark on Pulmonary Consumption and Scrofula, p. 230. [51] Dr Forbes in Cyclop. Pract. Medic., vol. i. p. 698, foot-note. [52] Abercrombie on Diseases of the Stomach, &c. 1st edit. p. 73. [53] Beaumont’s Experiments and Observations, &c. p. 243. [54] Beaumont’s Experiments and Observations, &c. p. 249. [55] Beaumont’s Experiments and Observations, &c., p. 185. [56] Cumberland’s Memoirs, vol. ii. p. 204. [57] Art of Invigorating Life, 3d. ed. pl. 73. [58] Caldwell’s Thoughts on Physical Education, p. 94. [59] See Professor Dunglison’s Elements of Hygiene, p. 324, in which the reader will find a great variety of very useful information on all the branches of the subject. The remarks on the different kinds of food and drink are among the best which I have met with. [60] Dunglison’s Elements of Hygiene, p. 331. [61] Beaumont’s Experiments and Observations, &c. p. 237. Transcriber’s Notes: 1. Obvious printers’, punctuation and spelling errors have been corrected silently.