. Transactions. O 1^ 00 o CO o 1—1 o o o o o O O M to N O CO IO HI rH CO CO lO^ 0> iH CO H iH co ,—1 !-H T-H T-l T-H ooooooooooooo lOiOCNiOcOOOOCOOCMOCO00 O hi IO CO N O^OO^W© N ©00H H h ff H—It—It—1 oo Q) go1—1 o iO CO CO rH o o -f CO00 CO co «o o o o o o o GO O CM © CM rHrH CM_ CD__ rH_ O C75_ iO co t> t> co t> ooooooooooooo OOOtDWiOONiOiO-fiOMO co co ro n ■* oi o co_ o_ n q ^ ni>TcrrccTcococo~oooooooi>cr rH r-i o CI co r-1 ocoo 0 6 6 O0 CM CM T-H rt HI « 00 N HJ HTf c°w co COOOOCMCOO-HICDOCOCMCOO T-HrH<NlOrH-tflCMHICOHIHtCMlO CNON CM co LUTHER W. LENNOX 245 I have plott


. Transactions. O 1^ 00 o CO o 1—1 o o o o o O O M to N O CO IO HI rH CO CO lO^ 0> iH CO H iH co ,—1 !-H T-H T-l T-H ooooooooooooo lOiOCNiOcOOOOCOOCMOCO00 O hi IO CO N O^OO^W© N ©00H H h ff H—It—It—1 oo Q) go1—1 o iO CO CO rH o o -f CO00 CO co «o o o o o o o GO O CM © CM rHrH CM_ CD__ rH_ O C75_ iO co t> t> co t> ooooooooooooo OOOtDWiOONiOiO-fiOMO co co ro n ■* oi o co_ o_ n q ^ ni>TcrrccTcococo~oooooooi>cr rH r-i o CI co r-1 ocoo 0 6 6 O0 CM CM T-H rt HI « 00 N HJ HTf c°w co COOOOCMCOO-HICDOCOCMCOO T-HrH<NlOrH-tflCMHICOHIHtCMlO CNON CM co LUTHER W. LENNOX 245 I have plotted the diameters and cumulative per cents as coordi-nates. The last definite point in diameter is in. (200 mesh);the curves must also pass through the point corresponding to 100 percent, retained and zero diameter. The last three known points— 65 mesh; or 100 mesh; and or 200 mesh—are shown 90.


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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries