176 H^majiatks. 
doubled, as they are in Coaches, will bear 
<38400 Pounds, AmJierdamV^tighty which 
being to EngliJJj Avoir-dupois, as ninety three 
to a hundred, will be <33611 Pounds Eng-^ 
lijlo. The Inch alfo here ufed by him is 
“ the Rynland Inch, which is to the Eng- 
lijlo Inch as 0.751 to one. 
“ 55. He plainly proves alfo by many Ex- 
periments, that a twifted Rope cannot fuf- 
“ tain near fo great a Weight as all its finglc 
untwifted Threads can do. And that a 
Rope which is breaded like .Womens Hair, 
is ftronger than one twifted in the com- 
mon Way, in the Proportion of one hundred 
and feventy to twenty : Difeoveries which 
may be of great Ufe in many Inftances. 
5 6 . It is well known that a twifted Rope 
or Cord does contrad or fliorten on being 
wetted ; the imbib’d Moifture dilating laterally 
their twifted Threads, whence the Cord muft: 
confrad longitudinally ; but on the contrary 
fingle untwifted hempen or flaxen Fibres, re- 
lax on being wetted, as animal Fibres do, cho* 
not fo much. 
E X P S R I- 
