The most valuable and original records of the history of drugs are to be found in “Pharmacographia” by F. A. Flückiger of Strasburg and Daniel Hanbury of London (published by Macmillan & Co.). I have as a rule avoided copying details from that work, although I have dealt with no subject without referring to it. In this section, however, the drugs named are of course treated in “Pharmacographia,” and necessarily the facts given must to some extent correspond. But comparison would show that I have only selected subjects which were capable of discussion from a somewhat different point of view from that which guided Messrs. Flückiger and Hanbury.[1]
Aloes.
Dioscorides is the earliest medical writer to mention aloes as a medicine. According to him it should be given in doses of from half a drachm to one drachm as a gentle purge, or of three drachms if its full cathartic effect were required. The drug is not named by Hippocrates nor by Theophrastus.
Celsus describes it as specially valuable for city men and men of letters (urbani et literarum cupidi); he says it is an ingredient in all purgatives, and it is clear from the later Greek and Roman writers how highly this remedy was esteemed. In “Pharmacographia” Hanbury refers to the legend of Alexander the Great visiting the Island of Socotra at the instance of Aristotle particularly on account of the aloes grown there. It is said that Alexander left a colony of Ionians on the island in order to ensure a sufficient supply of the drug. Undoubtedly there were Greek Christians there in Mohammedan times and it is probable that the Arabs invented the Alexandrian origin of them.
The Aloe in Flower.
A Medicinal Aloe growing under glass in the Chelsea Physic Garden.
[This photograph was published in “London Botanic Gardens” by P. E. F. Perrédès, B.Sc., F.L.S., published by the Wellcome Chemical Research Laboratories, and is kindly lent for this book by the Director of those Laboratories, Dr. Frederick B. Power].
The fame of aloes was well maintained by the Arabian physicians, and the old Greek and Roman formulas for aloetic compounds were passed on to the Middle Ages by Mesué of Damascus, together with some new ones. It was one of the drugs recommended to Alfred the Great by the Patriarch of Jerusalem.