298 PHILOSOPHICAI«.iTRANSACTIONS. [anNO 1752; 



by only making use of a pole of wood 25 feet long, about which he turned an 

 iron wire in form of a screw. 



XCIII. Extract of a Letter from Mr. Mylius of Berlin, to Mr. W. Watson, 

 F.R.S., on the before-mentioned Subject. Dated at Berlin, August 26, 

 1752. p. 559. 



March 16 last, at a little past 8 in the evening, we had here a slight earth- 

 quake, which manifested itself by its shaking the ground, the windows, and by 

 opening some doors. This we have had no example of before in our country ; 

 and it was perceived at the same time at Stavanger in Norway. I have made 

 experiments of collecting the electricity, during a thunder-storm, with great 

 success, in company with Professor Ludolf. He had erected an iron bar, of 12 

 feet long, which was fastened on a pole of wood, 50 feet in height, with 2 tubes 

 of glass covered with tin. The upper end of the iron bar was sharp pointed, and 

 near the lower end was fastened a very long iron wire, which being carried into 

 a summer-house, gave great sparks, as the thunder was approaching ; and these 

 sparks caused sometimes as violent a shock through the body, as the experiment 

 of Leyden. It was also continually observed, that the effects were greatest, when 

 the lightning was nearest ; and that for some moments after the lightning, the 

 effect ceased, but returned and increased by degrees. 



XCIP . Mans. FageCs Remarks on the Use, &c. of the Styptic, purchased by 

 . his most Christian Majesty. Communicated by James Theobald, Esq. F. R. S. 



p. 560. 



About the end of the year 1750, Mr. Brossard, a surgeon from Berry, came 

 to Paris, to propose the use of a remedy, which he had discovered for stopping 

 the blood after amputations, and which he asserted to have found effectual in 

 several amputations of the arms and legs. At his request, some gentlemen of 

 the Academy of Surgery were deputed, in whose presence he was to make some 

 new experiments in stopping the blood on different animals, and in all which he 

 succeeded, by slopping it in the largest arteries after amputation. But the suc- 

 cess of this remedy might yet be considered a little dubious, because in many 

 animals, as in dogs particularly, the great arteries stop of their own accord ; and 

 rarely any dogs die from an haemorrhage, because their blood is more disposed to 

 coagulate, and by that means stop the discharge. For this reason the experiments 

 made on animals not being thought satisfactory, and yet being convinced that no 

 ill effect could follow the application of this remedy on human kind, Mr. Bros- 

 sard was permitted to use it at the Hospital of the Invalids, in an amputation of 

 the leg, which succeeded perfectly well. 



