whence I conclude, that el/ery year, the Scale cncreafed 
one Circular line; and by confequence, the number of 
thefe Circular lines, being feven ^ the Fifti muft have been 
ieveny ears old. Thefe Circular lines are here denoted 
Fig. 8. by EFGHIKjL. Fig. 9. is the fameScale in fize, 
as it appears to our naked Eye. 
I have alfo examined, the flimc lodged on thefe Scales, 
but I can fay little thereof, till I have made further Ob- 
fervations. &c. 
Ddft fuljf z$th^ 1684. 
Tie Chy^ 
