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PHILOSOPHICAL TRANSACTIONS. 



[anno 1729. 



Queries, concerning the Cause of Cohesion of the Parts of Matter. By Fr. 

 Trieivald, Director of Mechanics in the Kingdom of Sweden. N° 408, p. 39. 



Query 1. — Does not the strong cohesion of two balls of lead prove the 

 doctrine of attraction, worthy its great author. Sir Isaac Newton ; and that 

 there is a universal attraction between the parts of matter in nature, though 

 some at such small distances as to escape our observations, since we cannot 



