are a well known misnomer. Fr. Hoffmann discovered the Seidlitz spring in 1724, and found that it owed its medicinal effect to sulphate of magnesia with some sulphate of soda. Seidlitz or Sedlitz is a small town near Seidschutz in northern Bohemia. There is evidence that at one time sulphate of magnesia was obtained commercially from this spring as it was from the Epsom water, and in this country then, and in some Continental countries still, Seidlitz salt was and is a synonym for sulphate of magnesia. In Christison’s Dispensatory it was suggested that the name as applied to the powders which have so long been known in Great Britain was a corruption of Seignette’s powders. Other writers suggested that the name may have resulted from a confusion between Seidlitz and Selters. The most probable explanation, however, was given in The Chemist and Druggist of February 23 and March 2, 1901, from which it appeared that Thomas Field Savory, of Bond Street, London, took out a patent in 1815 for “the combination of a neutral salt or powder which possesses all the properties of the medicinal spring in Germany under the name of the Seidlitz powders.” The specification was for the production of three powders, namely, (1) tartrated soda, (2) bicarbonate of soda, and (3) tartaric acid, but these chemicals were not designated by their usual names, but old-fashioned methods of producing them were set forth. Then it was stated that ʒij of No. 1, ℈ij of No. 2, and ℈ij of No. 3 were to be taken and mixed in the manner so familiar to us. In 1823 Mr. Savory brought an action against Messrs. Price & Son, of 4, Leadenhall Street, for alleged infringement of his patent, which, however, the Court held to be invalid in consequence of the elaborate directions in the specification for the production of the several ingredients, all of which were chemicals sold in all chemists’ shops. At the same trial it seems to have been admitted that the combination was both new and useful. There is no record of any objection to the title.
In 1778 Bergmann published a treatise on artificial mineral waters, giving analyses of the most popular, and recommending the use of the factitious waters as preferable to the natural ones. About the same time a French pharmacien, named Vanel, introduced a powder with which to make the favourite Eau de Seltz, or Selters water. Apparently the salts for making mineral waters acquired a certain degree of popularity, and it is likely that Seidlitz salt was among them. Nothing would make this palatable, and Mr. Savory’s idea of substituting a pleasant draught for a nauseous one was at least a commercial success.
Turner’s Cerate.
Daniel Turner, M.D., the inventor of Turner’s Cerate, which appeared in several Pharmacopœias as Ceratum Calaminæ, was at first a surgeon in London, but was admitted a Licentiate of the College of Physicians in 1711, and practised in Devonshire Square, Bishopsgate. In William Munk’s Roll of the Royal College of Physicians an opinion of him is quoted that he was too fond of displaying his talents upon paper; the result being that he published many volumes which are now forgotten. (A commentary which might be made on most other authors.) It is also said of him that his cases were not stated in the most delicate terms, nor was politeness among his excellences. As several of his works were about syphilis it may be that his style was merely perspicuous. He wrote comments on Dover’s “Ancient Physician” and on Mr. Ward’s Pill and Drop. His biographer, however, quotes from him with approval a pious exhortation to physicians not to be ashamed to avow their religious principles even if they kept their politics to themselves. “It can be no disgrace,” he wrote, “for a physician who owns himself to be no more than Nature’s minister to acknowledge himself also the servant of Nature’s Master.”
Turner’s original formula for his Ceratum de Lapide Calaminari was to melt together 3½ lb. of freshly made unsalted butter, 3½ lb. of the best yellow wax, and 4 lb. of pure and newly-prepared olive oil. These when melted to be strained through a linen cloth, and while cooling, 3 lb. 10 oz. of the best calamine stone, “sufficiently triturated and passed through a Sierce,” to be sprinkled into the mixture with constant stirring till it sets.
Turner’s comments on this cerate are worth quoting, because they incidentally illustrate the pharmacy of the period. He says:—
“As I have had ample experience of this cerate, I may be allow’d, I hope, to judge of its singular properties and good effects in all cutaneous ulcerations and excoriations either from scalding, burning, or fretting of the said parts by means of salt, acrid, or sharp humours; upon which accounts, not straining a tittle beyond its deserved euology, I am bold to affirm it will do more in all these superficial hurts of the body than either Unguentum Tutiae, Diapompholyx, Nutritum, Desiccativum Rubrum, Rosatum, or all the epuletic medicines now in use; and for which cause I can, for the public benefit, sincerely recommend it to all the professors of the art; and do wish that the Apothecaries would keep it made up in their shops, to deliver, at a suitable price, to indigent or poor people, instead of their ridiculous Locatellus’s Balsam, and other improper medicines which they call for ignorantly to heal their skin-deep maladies. I know the medicine has been imitated by several, and I have seen somewhat like it in some gentlemen’s salvatories; but I know not more than two persons I ever communicated it to, as I was wont to prepare it for my own use. The medicine thus prepared is of a good consistence and a true cerate, serving both for pledget or plaister, neither sticking troublesomely, nor running off or about by the heat of the parts; but keeping its body and performing things incredible. Whoever thinks fit to take it into practice will never repent it, nor perhaps (when he has experienced it as I have done) think I have said too much in its Commendation. This is the medicine I have so often taken notice of, which, that I might contribute my mite to the Surgeon’s Treasure of Medicine, I here have publish’d, and leave it to take its fate.”
The other preparations to which Dr. Turner refers as being at that time in public demand may be briefly noted. Tutty was another impure oxide of zinc generally containing some oxide of lead or copper. It was obtained from the flues of smelting furnaces where zinc ores were purified. Tutty was so called from an Arabic or Persian name given to zinc, or to a zinc and tin bronze imported from China and used as a gong metal by the Chinese. The tutty ointment was properly made up with viper’s fat. Pompholyx was one of the names given to oxide of zinc prepared by combustion. It was a Greek word meaning a bubble in melted metal, from pomphos, a blister. Unguentum Diapompholyx contained besides the flowers of zinc, white lead, the juice of nightshade berries, and frankincense. Unguentum Nutritum was an acetate of lead ointment. Unguentum Desiccativum Rubrum was compounded from litharge, bole armeniac, calamine, and camphor. Unguentum Rosatum was similar to cold cream.