( 91 ) 
Window of the Syftem BB. Set the Determinators 
at 43 ; then move your Operators fucceffively as 
often up and down, till there appears in both Win- 
dows the Number 3 , then you will fee on your 
Addition- Rings under the Indexes, the Product 119. 
It is eafy to underftand that as x\\<z Multiplica- 
tion is nothing elfe than a repeated Addition r the 
Machine does alfo perform its Operation by a re- 
peated Addition only : For the Number 3, which 
appears in the Window of the Syftem B B, fhews how 
many times you have added the Number 3, pointed 
by the Determinator to itfelf, which when done 
3 rimes, is 9. And fo the fame Number 3, which 
appears in the Window of the Syftem CC, after 
your Operation , fhews how many times you 
have added the Number 4 to itfelf. I need not to 
make you obferve, that befides the two SyftemsBB 
and CC, there muft be fuppofed another, not ex- 
prefs’d in the Figure, which will fhew the Num- 
ber 1 of the Product 119, 
IV. c DiviJ?on . If you are, for inftance, to divide 
40 by 3, fet your Dividend 40 in the Snbftraclion- 
Rings under the Indexes jyjy, in the Syftem B B 
and C C ; turn the Indexes ff, near the Windows 
to make 0 appear write your Divifor near the 
Determinator of the Syftem CC, and fet the Deter- 
minator at 3 5 poll the Operator up and down, then 
you will have 1 under the Index jy, and 1 iikewiie 
in the Window. By this you fee, that you cannot 
work further in this Syftem CC, becaufe you can- 
not fubftracft 3 from 1 : You muft therefore go on, 
to the other Figure of the Dividend, viz, o, and 
in the Syftem BB fet the Determinator again at 3. 
This 
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