D § D I CATION. m 



finding all things formed in beauty, and 

 pft^^{iBMWo? ( \l^ i^ ffife , mind is raifed from 

 the fleeting and evanefcent appearances of 

 matter to contemplate the permanent prin- 

 ciples of truth, and acknowledge that the 

 whole proceeds from the wifdom that 

 originates in love. 



It was by YOUR MAJESTY'S goodnefs 

 and gracious patronage that I was firft indu- 

 ced to undertake a defcription of mathema- 

 tical and philofophical inftruments, that I 

 might thereby facilitate the attainment of 

 thofe fciences that are connefted with them, 

 and by {hewing what was already obtained, 

 excite emulation, and quicken invention. 



h 



