Miscellaneous Intelligence. 



edge and scale of equal parts. It 



I connection witl 



J long side of the setnicirc 



be turned to make any requirt 

 ingles are read by f 

 I facili ■ " 



all movements. 



upon the ruler slides a scai.^ p. ate lor rae.i-iirinrr .n^.tances ur "^'. -, 

 ing them down. There are ^i.v =c.ile=, repre=eniaig divisions of the mcb 

 into 8, 10, 12, 16, 20 and 24 parts. Each has a vernier to tenths, aiia 

 I most of them smaller parts may be estimated. The edges of the Ivvt 

 • - ^ ^ ^ ' ^„« r.f flf«r„lfir to the 



parts of the sliding rule < 



3 of the paper, ; 

 accurately on t 



over the edge of the 



t thus affords the means of plotting a 

 with great accuracy and dispatch. The aim has been 

 to lay down angles" to minutes, and distances to thou 



