796 ELEMENTS OF MATERIA MEDICA.

and promote sweat, constituting the camphor fumigations [futnig^ 10 ^camphorm). Dupasquier {Revue Med. t. ii. p. 218, 1826) reeomm 011 ^these fumigations in chronic rheumatism. The patient may be m tor seated in a chair; and, in either case, is to be enveloped by a bla itied round the neck. About half an ounce of camphor is then to be

a metallic plate, and introduced nothin the blanket (under the c ^ a0

on

if the patient be seated). In solution, camphor is used either (()anodyne or a local stimulant. The nitric solution of camphor is use .relieve toothache. A solution of camphor in oil has been used as anjection into the urethra, to relieve ardor urina; in gonorrhoea, and int 0 ^^rectum to mitigate tenesmus arising from ascarides or dysentery- .acetic and alcoholic solutions of camphor are mostly employed as s ^lants. In substance camphor is not frequently used. A scrap shalf a drachm “ added to a poultice, and applied to the perineum, n ‘the chordee, which is a painful attendant upon gonorrhoea” W a.States Dispensatory). Powdered camphor is a constituent of somepowders, to which it communicates its peculiar odour. ^

The foregoing are some only of the maladies in wdiich camphor ,been extensively used and lauded. I must refer to the works of ^{App. Med. vol. iv.) for various other uses which have been made oI egSsubstance. It is scarcely necessary to add, that camphor bags p oSSno prophylactic properties against contagion. . s •

Administration. —The medium dose of it is from five to ten S Tal * I1( |but it is frequently exhibited in much smaller doses (as one grain) > fl(occasionally a scruple has been employed. It is given in the form of p~ , eemulsion. That of pill is said to be objectionable, “ as in this sthe camphor is wdth difficulty dissolved in the gastric liquors, and, n° a ‘ }on the top, is apt to excite nausea, or pain or uneasiness at the u)Torifice of the stomach” ( United States Dispensatory). The emuls 10made by rubbing up the camphor with loaf sugar, gum arabic, and " a aand the suspension will be rendered more complete by the additionlittle myrrh (Ibid.) , or?

1 . Mistura Camphorm , L. E . D .; Aqua Camphorm. — (Camp 13ss.; Rectified Spirit , nix.; Water, Oj. First rub the camphor" ,the spirit, then with the water gradually poured in, and strain thro ^linen, L. —The Dublin College employs of Camphor, 9j. only ; of l* 1 ®fied Spirit, gtt. x. ; of Refined Sugar , 5 ss.; of Hot Water, Oj- ,camphor is to be first rubbed with the spirit, then with the sugar; * aS Jiiadd the water during the trituration, and filter the mixture di r0 ?.bibulous paper, D.— The Edinburgh College employs Camphor, d^ gSw r eet Almonds, and Pure Sugar, of each, §ss.; Water, Oj. Steep^almonds in hot water, and peel them; rub the camphor and sugar ^together in a mortar ; add the almonds; beat the whole into a snl °p;.)pulp; add the water gradually, with constant stirring, and then strain, ^

The camphor mixture kept in the shops is often prepared by suspei 1 ^camphor in water without the intervention of any third body- .quantity of this substance dissolved is exceedingly small. The r !?motespirit, employed by the London and Dublin Colleges, serves to p r °the pulverization, and, very slightly perhaps, the solution of the campSugar also assists its diffusion through water. The preparation o ^Edinburgh Pharmacopoeia is, in fact, an emulsion. None of theseficial mixtures, however, are very permanent, and the quantity of c