The Secretary of the Chelsea Hospital was good enough to take some trouble in reply to my inquiry to endeavour to trace this compound, but only negative results were attained. Dr. Thomas Ligertwood, the oldest living medical officer of the Royal Hospital, was appealed to, but he only knew of the remedy as “a very useful combination,” and had never heard the story of Lord Amherst’s purchase of the secret. He thought some information might be found in a work on the “Diseases and Infirmities of Old Age” by Dr. Daniel Maclachlan, a former Principal Medical Officer of Chelsea Hospital. That work (dated 1863) contains two allusions to the Chelsea Pensioner, but nothing about its history. Writing of Chronic Rheumatism the author says:--“ ... The more stimulating diaphoretics and diuretics prove serviceable. Among these the preparations of guaiacum deserve the confidence they have long enjoyed. The virtue of the powder (_sic_) known as the Chelsea Pensioner is chiefly due to the guaiacum and sulphur it contains.” In the section on gout he writes:--“The once famous Portland Powder has for long been abandoned, as has also the almost equally noted Chelsea Pensioner gout powder. One formula for the latter consisted of rhubarb, sulphur, nitre, and gum guaiacum, in equal parts. Fifteen or twenty grains of the powder were taken morning and evening in treacle. Another was powdered bark, ginger, guaiacum, aa ʒi, cream of tartar 1 oz., flowers of sulphur ½ oz., to be made into an electuary with simple syrup. One teaspoonful to be taken three times a day. This is certainly not a bad combination though a nauseous one.” The following formula is given in the “Pharmacopœia Batava recusa cum notis et additamentis Medico-Pharmaceuticis,” published by J. F. Niemann, in 1824:--Resin of guaiacum, rhubarb, aa ʒij; supertartrate of potash, 1 oz.; sublimed sulphur, 2 oz.; one nutmeg; despumated honey, 1 lb. It is evident that this “Anti-Rheumatismal Electuary,” as Niemann calls it, and the Chelsea Pensioner had a common origin, and as the formula is not to be found in Niemann’s previous edition, 1811, it would appear to have come into popularity between that date and 1824. So far it remains doubtful whether its composition is due to an English or a Dutch author. CITRINE OINTMENT. An ointment thus named appeared first in the P. L. 1650. It was a compound of coral, limpet shells, quartz, white marble, white lead, and tragacanth incorporated into a basis of hogs’ lard, suet, and hens’ grease. It was reputed useful for certain skin complaints, freckles, etc. In the P.L. 1678 some of the old ingredients were omitted, sugar of lead was substituted for the white lead and rose water, and frankincense and citron bark were added.