702 Mr. hutton’s Calculations to afcertain 
Of the meafure of the bafe rb" in Glenmore, the valley on 
the South of Schehallien, taken the 1 6 th, See. of Sept. 
Here a and b are the names of the two meafuring 
rods, which were laid down alternately in the order as 
expreffed in the following table of meafures. The 
lengths of thefe rods, by the brafs ftandard, when the 
thermometer was at 6 were thus, viz. 
r a = 20 feet i*2C c inch.= 20*1 
1b = 20 feet 1*323 inch. = 20*i ^ 
The numbers following each rod, with the lign + inter- 
pofed, are inches and decimal parts ; and they denote the 
the next following rod ; and, therefore, the fum of all 
thefe numbers mull be added to the fum of the lengths 
of the rods themfelves for the total of the meafures. 
Alio, as the firfl: rod began at 2 feet 8 inches from the 
point r, this number is to be added to the total laft men- 
tioned, to give the meafure of the whole bafe from r to b". 
1774. 
diftance beyond the end of each rod to the beginning of 
a +8‘29 
