I have only further to add, that since the substance of the preceding memoir was first published, numerous cases have come to my knowledge in which the _churrus_, or resin prepared by the natives for smoking, has been used with little effect. This was the case in some experiments made by Dr. Pereira with _churrus_ which I sent him myself. Age and adulteration have been probably both concerned in rendering this substance inactive. But with the alcoholic extract made from the tops in the way I recommend, the practitioner has only to feel his way, and increase the dose till he produces intoxication as the test of the remedy having taken effect. Of all powerful narcotics it is the safest to use with boldness and decision. I have given Mr. Squire, of Oxford-street, a large supply of the gunjah, and that gentleman has kindly promised me to place a sufficient quantity of the extract at the disposal of any hospital physician or surgeon who may desire to employ the remedy. My object is to have it extensively and exactly tested without favor or prejudice, for the experience of four years has established the conviction in my mind, that we possess no remedy at all equal to this in anti-convulsive and anti-neuralgic power. (_Date of Reprint_) London, January, 1843. FOOTNOTES: [1] For very fine specimens of _churrus_, I have to express my thanks to Dr. Campbell, late political resident at Nipal. [2] By this term is probably meant the first of the Sassanian dynasty, to whom the epithet of “Khusrow” or Cosroes, equivalent to Kȧiser, Cæsar, or Czar, has been applied in many generations. This dynasty endured from A.D. 202 to A.D. 636.--_Vide note 50 to Lane’s Translation of the Arabian Nights_, _vol._ ii. p. 226. [3] Handbuch der Medicin und Pharmac. Botanik, von F. Ness von Esenbeck und Dr. Carl Ebermaier, vol. i, p. 338. [4] Although I observed no effect from two drachms of hemp resin given to a horse, Messrs. Hughes and Templar, of Calcutta, have since cured four horses of traumatic tetanus by giving half-pint doses of the tincture.--W. B. O’S. [5] The nurse, I should have mentioned, was changed early in the illness, and change of air resorted to on the river, but in vain. INDIAN HEMP. TO THE EDITORS OF THE PROVINCIAL MEDICAL JOURNAL. GENTLEMEN,--With reference to my paper on the Indian Hemp, lately inserted in your Journal, I trust I may be permitted to disclaim any wish to advance these preparations as specifics in the treatment of tetanus, or in spasmodic diseases generally. That hemp possesses great, indeed extraordinary, anti-convulsive power, I feel assured from numerous facts which I have myself observed, and which others have also witnessed. The cases of the six horses affected by traumatic tetanus, recorded in my paper, of which four recovered, are almost enough by themselves to convince any unprejudiced person of the energy and promise of this drug.