[ 35 1 ] 
3- Right Lines not taking up more than | of the 
Time of Defcription of crooked Lines, as the Dia- 
meter is -J of the Semiperiphery, it appears, if only 
right Lines were ufed, thefe T ? - would be reduced 
to by the Subtra&ion of of But, becaufc 
the Number of right Lines, all things confider’d, 
fhould not be reckon’d but about double the Num- 
ber of crooked ones, only ~ of can be taken 
from the ; that is to fay, the Time taken up in 
writing this Hand will be ^ of the Time 
taken up in. writing of the common Long-Hand, or 
or lefs than the \ of the Time. 
As I have fhewn all the Principles on which 
Short-Hands can be conftru&td to Advantage, I have 
no need to compare this with any other ; becaufe I 
have enabled every Reader to judge of them, by 
fhewing within what Limits ail Improvements arc 
bounded. 
XV. An Account of a 'Treatife by Wm. 
Brownrigg M.D . F.R.S. intituled \ cc The 
“ Art of making common Salt, as now 
“ pra&ifed in mod Parts of the World ; 
“ with feveral Improvements propofed in 
“ that Art, for the Ufe of the Britijh Do* 
“ minions ; 55 abJlraBed by W* Watfon 
R R. S. 
Gentlemen , 
Read June I5-T" RECEIVED your Commands to lay 
1748. before you an Extrad of our worthy 
Brother Dr. Brownrigg's Book ; which, though at 
Zz 2 all 
