Improved Method of making Ropes. 331 



Among thofe who died in Pruflian Pomerania were two 



men and three women 100 years of age, and three men and 



tour women of from 101 to 105. 



Of thofe born in Rufiia, 531 015 were males, and 460900. 



females : of thofe who died, 275583 were males, and 264807 



were females. The births exceeded the deaths by 451525. 

 It is to be remarked here, in general, that the mortality 



in the Southern part of Europe is eonfiderably greater than 



that in the Northern part, London and Copenhagen excepted. 



The caufe of thefe forming an exception, is, perhaps, their 



being populous capitals. 



MANUFACTURES, 



M. Mcglich, member of the privy council of Wirtemberg, 

 lately deceafed, found out, a little before his death, a new 

 method of making ropes, the threads of which, are not 

 twitted as ufual and wound round eac,h other, but bound 

 together ftraight and in a parallel direction. The celebrated 

 Mufchembroek difcovered, by feveral experiments, that 

 threads and cords, not twitted, formed ftronger ropes than, 

 thofe which were twifted ; but he never could difcover a 

 proper method of uniting parallel threads together. The- 

 brothers, Landauer at Stuttgardt, have, however, begun a 

 manufactory of this kind, which will be of great utility for 

 {hipping. It has been found by experiments that fuch a 

 rope, wove of yarn worked together, 1^ inch in diameter, 

 fupported 13 hundred weight without breaking; and when 

 it was at length made to give way by a greater weight, it 

 broke as if it had been cut with a pair of fciiTars ; a proof 

 that all the threads had experienced an equal degree of ten- 

 don. A wove rope of this fort, containing 504 threads, 

 3 , 3 . inches in diameter, and 11 1 feet long, weighed no more 

 than 19 pounds, whereas a common rope of the fame di- 

 menfions, and the like number of threads, weighed 31 £ 

 pounds, 



MliTIiOR- 



