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Canadian jeweller 1890 (1890)

Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 538

An illustration from Canadian jeweller 1890, 1890, leaf 538
These variations complete the datafor the computation of the value of the chronometers, or, inother words, for the computation of their trial numbers. Theformulaforthetrial number is purely empiru al, but it is believedthat it covers all the points that should be considered in de-termining the… … Trntp / ^,rt/:/Ti *r^ O 3\J iJ I,.,. :l4S OJ -t iJSXj Tmmp wnjtanM - - - -~-0 coZ/i I .>r/1>nrrU of anis> • *L— In. civmje 01 < Ann/*,, tr The next term (iooos)2, needs no explanation. In the third term V„ is the mean of the variations of the rates in the temperature room from the curve…

Jewelry · Jewelry trade

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