fe qiil fcquente intcriiallo crit 



u' z=y{i - 2 v' cof. ?/' + v' V) , 

 quilnis cbferuatis motum talis corporis quousque lubucric 

 profequi liccbir; calculus autcm ob forniulam irrationalem 

 v aliquanto molcflior cuadct quam fupra. Facile autcm 

 intcliigitur , hinc motus maximc intricatos rclultarc pofle^ 

 qnos nullo plane modo adhuc cognito raltcm vcro proxi- 

 ine ad ordiucm qucndam rcuocaie lictbit. 



R£- 



