. Transactions. 0 per cent. Secondary Logarithmic Plot of Sizing-Tests. that the coarsest size predominates. This size corresponds on the scale of logarithms, which equals a diameter mm. From this size downwards, the proportion of materialfalling between any fixed, ratio of sizes becomes progressivelyless and less. Fig. 15 is a secondary logarithmic plot of the same data pre-sented in Figs. 1, 2 and 3, prepared for the purpose of compari-son. It is interesting to note that, while in Fig. 3, curve 12seems only to have been begun, Fig. 15 shows that its culmi-nating point has been
. Transactions. 0 per cent. Secondary Logarithmic Plot of Sizing-Tests. that the coarsest size predominates. This size corresponds on the scale of logarithms, which equals a diameter mm. From this size downwards, the proportion of materialfalling between any fixed, ratio of sizes becomes progressivelyless and less. Fig. 15 is a secondary logarithmic plot of the same data pre-sented in Figs. 1, 2 and 3, prepared for the purpose of compari-son. It is interesting to note that, while in Fig. 3, curve 12seems only to have been begun, Fig. 15 shows that its culmi-nating point has been passed, indicating that the size Figs. 16 to 18 represent the data in Tables VII. and as secondary logarithmic curves, evolved from the cu-mulative logarithmic curves in Figs. 7 and 11. Curves Nos. 1, I 11 I I • I. i • I I I \.. OF SI ZI N(! II 285 2, 8 and l. representing trommel-products, show Bimilar charac-teristics, and while they overlap somewhat, they Bhow, as should. 32. 15. 1. DIAMETERS IN MILLIMETERS10 9 876 54 32 10-1-2 SCALE OF LOGARITHMS OF DIAMETERS MULTIPLIED The vertical scale is so chosen that for areas enclosed by curves representingpercents 25 squares = 10 per cent. ndary Logarithmic Plots. Sizing-Test of Trommel-Products fromMill No. 38. (See Table VII. and Fig. 7.) be expected, a narrow range above and below the predomi-nating size. Curves Xos. 5, 6, 7 and 8 (Fig. 17) represent Fig. LI rut i t Nl / -H i ^ ^ . 5 ~-~~ g _ _ _L_ Mil --- -- ;;-- 7 £ 1 - i H -^K . - £ :~~ , /i^ __ _ _ _ _ it ™ - 9 £20 —-7e- __ _ _ -- ---- £ **? : \ i —i __ j j ^ K^, - - - lij Z * ^^ ^j 1 20 ^~~ 5 -5 ~ T ^ \ io Z it V It ^ 1 i L _ _. -i I 2. 1. DIAMETERS IN MILLIMETERS2 1 0—1-2-3 -4 -5 -6 -7 -8 SCALE OP LOGARITHMS OF DIAMETERS MULTIPLIED BY The vertical scale i
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
