516 



THE MODERN SYSTEM 



CROTONI SEMINA. 



CROTON SEEDS. 



These are the produce of a tree in the East 

 Indies. 



Medicinal Uses. — Cathartic, in doses, from 

 X to XXX grains in a ball. It appears from 

 experiment, that the meal, or rather cake, 

 which remains in the press after the expression 

 of the oil from the seeds, that the active prin- 

 ciple does not reside so much in the oil, as in 

 a peculiar resin. Its effects are rather un- 

 certain. 



CUPRI SUBACETATIS. iERUGO. 



SUBACETATE OF COPPER. VERDIGRIS. 



This salt is principally made in the south of 

 France, by putting plates of copper among 

 the residuum of the grape, after the expression 

 of its juice. Frequently sprinkling them with 

 water, and allowing the grape-stalks to fer- 

 ment ; after some time a thick coating of ver- 

 digris forms on the surface of each plate, 

 which is scraped off by means of a knife, and 

 then put into bags, and exposed to the sun 

 and air to dry. 



Medicinal Uses. — Detergent and escarotic, 

 and externally in the compound linimentum 

 elrugirais. 



CUPRI SULPHAS. 



SULPHATE OF COPPER. BLUE STONE. 



This salt is obtained from the evaporation 

 of the water of copper mines. It is also pro- 

 cured by washing copper pyrites, and expos- 

 ing them to the action of air and moisture. 

 When required for these purposes, it may be 

 made in the same manner as sulphate of zinc, 

 by putting pieces of copper into diluted sul- 

 phuric acid, contained in a glass vessel, and 



when the effervescence has ceased, tiiterina: 

 the solution through paper, and after boiling 

 it down till a pellicle appears on the surface ^ 

 then setting it aside that crystals may form, 

 which are to be dried in bibulous paper. 



Decemposition. — Concentrated, it does not 

 act on the metals at the ordinary temperature 

 of the atmosphere ; they require to be diluted 

 when action goes on rapidly ; the water is de- 

 composed, its oxygen unites to the copper, 

 and converts it into an oxide, which is dis- 

 solved by the sulphuric acid, and forming 

 sulphate of copper, whilst its hydrogen es- 

 capes in the form of gas. 



Medicinal Uses. — Tonic, internally; stimu- 

 lant and escarotic, externally ; this is given in 

 doses, from one to two drachms, combined with 

 ginger, as a general tonic, in the form of balls ; 

 but when given, as at the College, in cases of 

 glanders and farcy, in doses from four to eight 

 drachms, it is advisable to make it into a draft, 

 by dissolving it in about two pints of water, 

 and adding an ounce of linseed meal to the 

 solution. Exterrxally, it is applied either in 

 solution, or in powder. 



DIGITALIS FOLIA. 



F0X-GI,0VE LEAF, OR DIGITALIS. 



This plant is indigenous, and flowering from 

 June to August. The leaves are the part of 

 the plant used medicinally, which should be 

 gathered just as the plant is in flower, dried 

 quickly in the shade ; or what is still better, 

 secluded entirely from light. Let them be 

 powdered, and kept in well stopped bottles 

 for use. 



Medicinal Uses — Sedative, given in doses 

 from 3 ss to 3 ij, in the form of ball. 



