Treatment of the diseases of the eye, by means of prussic acid vapour, and other medicinal agents

"Treatment of the diseases of the eye" by Alexander Turnbull is an ophthalmology book about eye diseases and their cure with the help of hydrocyanic acid. Excerpt: «In submitting to the public the following interesting cases illustrative of the effects of my mode of treating diseases of the eye, I have prefixed to them the original communications transmitted by me to the Lancet and the Medical Gazette. My reason for so doing is this—I wish it to be seen by actual comparison, that in every instance the confidence I have expressed in the efficacy of these medicines has not been overrated; on the contrary, it will be seen that I have said less than the facts really warrant. I have also given the cases that are at present under my treatment, in order that all who take an interest in the subject may have ample opportunity of watching their progress, and forming, from their own observations, just conclusions. I have also added some important observations concerning the action of the essential oils on the eye, as exhibited both externally and internally»