AS MEASURED BY MONEY.

121

carried, and yet a profit be realized at the reducedprice, is truly astonishing, as the following fact,which rests on good authority, will prove. Twentyyears since, a brass knob for the locks of doors wasmade at Birmingham ; the price, at that time, being13s. 4 d. per dozen. The same article is now manu-factured, having the same weight of metal, and anequal, or in fact a slightly superior finish, at Is. 9|d.per dozen. One circumstance which has producedthis economy in the manufacture is, that the lathe onwhich these knobs are finished is now turned by asteam-engine; so that the workman, relieved fromthat labour, can make them twenty times as fast ashe did formerly.

(150.) The difference of price of the same article,when of various dimensions—at different periods, inthe same country—and in different countries — iscuriously contrasted in the annexed Table.

Comparative Price of Plate Glass , at the Manufactories ofLondon , Paris , and Berlin.

LONDON .

PARIS .

BERLIN.

1825 .

1828 .