MEDICINAL PREPARATIONS OF GOLD. \jg 



periment, the same cause undoubtedly produced the same the experi- 

 effect in the second case. This conclusion leads to another ment * 

 of still greater importance; for, if the perforations in ques- 

 tion are invariably made by the positive current, the 

 experiment under consideration affords no mechanical 

 evidence, demonstrating the existence of a negative fluid. 

 It will not be improper or superfluous to conclude the 

 present letter by observing, that I made similar trials with 

 several slips of writing paper, which were pasted together 

 by their ends and coated with tin-foil like the cards. The 

 result in this case was always the same; for the less bur was 

 on the side of the bundle which was connected with the 

 positive surface of the battery; and when the slips of paper 

 were separated, the larger bur of each piece pointed to 

 that- face of the bundle which communicated with the 

 negative coating of the jars. 



MlDDLESHAW, JOHN GOUGH. 



May 15th, 1812. 



III. 



On some Preparations of Gold lately employed medicinally: 

 by A. S. Duportal, M. D. Sfc.- 9 and Th. Pelletier, 

 Apothecary*. 



XA.FTER having enjoyed some reputation as a medicine, Theuseofeold 

 gold had ceased to be administered to the patient, and as a medicine 

 taken an opposite direction. Lately, however, DrChrestien lately revived, 

 of Montpellier, a physician of great reputation and suc- 

 cessful practicef, has revived its use. He has employed it 

 in siphylitic and lymphatic affections, and chiefly in Clark's 

 modej. The preparations he uses are metallic gold in a 



"•■Abridged from Aim. de Chim. vol. LXXVIII, p. 38. 

 \ The gentleman through whose means Dr. Godden Jones became 

 acquainted with the virtues of d'Husson's eau medicinaie in the 

 gout. C. 



£ From a passage in the sequel I imagine Clark is put for Clare; 

 and that it means by rubbing on the inside of the check, or on the 

 gums C. 



state 



