2

ö eu Tables H Lag arirlinte 1755

Or according unto the ſecond manner of operation in the Rale ofThree, the Difference between Logari thms of lines giren may be tripled;che Difference between the Logarithms of the Solidity or Weight givenmay be divided into three parts. e

So in che fult eſtion, where the Plameters were known, and the

Weight required. f g N fThe Logarithm of 4 1 0. 5:09The Logarithm of 3 90990308999The Differente increaſing f 307 o õ

The triple of this Pifferene 9009Added to the Lögarithm of 9 5.934345Gives the Logarithm of 72 1.8573 32 51

In the ſecond Queſtion, where the Weight was known, and the Di-ameter required. i N

8

The Logarithm of 218 9.954242 51The Logarithm of 71 873320The Difference increaſing. N 5 115 90308999 5The third part of this Difference N 301 029Added to the Légarithm of 4. 6020599Gives che Logarithmof b 8 o 089g

PRO p. vfII.

Hun ing tuo Number: given, to nd a third in continua Proportion, a faurtb,4 flih, a fiuth, and ſo formar s. N

g to the firſt way in che Rule 5 Three, we may ſubtract

A. che Logarithm of che firſt number, out of deuble che Logarithm

of the ſecond, the remaindder hall be the Logarithm of the third, chen

lubtracting the Logarichm of the firſt Number again, out of the Loga-

riebms of che ſecond and third, chat is, ont of triple the Logarithanof the ſecond, the remaindler hall be the Logarühmof the fourth, and

10 forward. 5 5