Let A distance of the object from the object glass, F and/ focal 

 lengths of the object and eye glasses, c as before, theu fe 



Magn. power = -gj. 



MILL, miter. See Wheel. 



MILL, Wind. See Windmill. 



MODULUS. See Logarithms. 



MODULUS of Elasticity. See Elastic bodies, equilibrium of. 



MOMENTUM, and the moving or motive force which produces it. 



Let M be the momentum or the moving- force which produces it ; Q 

 the quantity of matter moved; A the accelerating force ; then 



M varies as Q X A, or A varies as -^. 



V V* 



Cor. Since A varies as -^, or varies as -^ we have 



1 o 



Q X V O X V* 



M vanes as ~^ or varies as -= . 



1 a. 



.". when Tis given, M varies as Q X V, and when S is given, M varies 

 as Q X V2 i.e. the moving force, estimated by its effect produced in a 

 given time, is as Q X V ; but when estimated by its effect produced 

 through a given space, is as Q X V 8 . 



MONEY. (Enc. Brit. SuppJ 



Principal gold coins of different countries, with their value in sterling 

 nearly. STERLING. 



s. d. 

 AUSTRIA Souverain . . ... 13 11 



Ducat, coins of this nam * are current* 

 in Bavaria, Bern, Brunswick, Co- 

 logne, Denmark, Francfort, Ham- 

 burgh, Hanover, Holland, Poland, 



from 9 2 



Prussia, Russia, Saxony, Sweden, w v 

 Treves, Wirtemberg, and Zurich ; 

 and vary in sterling value 



BAVARIA Carolin 20 4 



Max. d'or, or Maximilian . . , . 13 7 



BERN Pistole, also used in Brunswick . . . 18 8 



DENMARK Christian d'or 16 6 



ENGLAND ....... Guinea 21 



Sovereign 20 



177 



