[A. H. V. MORGAN.

120

C—l 4.

s(i. So there may be a considerable amount of stuff in the Waihou which will go through the BmaU 37 r TuChSZmm-} You did not determine the proportion of quart, to other *» Te Aroha "nd, nor did you detormin* the proportion of quartz to other material ip the Waihou fliver bed samples?— That is so. 58 Therefore it is difficult to trace the analogy I— Yes. 59' Vr ¥ore.s-6w.l Did you make any silica tests?— Not of these samples. 60 So YOU m- unable to tell us from any assays you have made as ,0 what ,he povcentage of silica would' be in theM pure river-sands up the Waihou R.v,,' No. I he percentage ,S fa.rh You did not mak, any actual tests (-No. 1 MiP the silica in the sands under the microscope, and fro,,, tlmt I am able to say the percentage is high. Mine?— f,2. Do yon know what the percentage of silica is m the sands coming from the Waihl Vhne? 1 think, roughly speaking, about 90 per cent. M f think we' lrr2« that the percentage of silica in the pure river-sand above the nnning influence is'not the percentage of silica in the ore which comes from the Waihi tailings! No- I think you can faith assume that. . 6, I what you elassifv as possible nnning tailing. In the Wa.hou 1 iver below the Junction did you include all the percentage of silica that is found as mining tailings coming from both riir. or how didyou make a distinction t-Bv the appearance. I did not tnclude all the silica as mi TSie J* ari mtl. - - ""ft £«£ Ohinemuri RiVe 6»"Sen a hoi are you able to tell the difference f_That comes under the grade of: possible tailings. I say the possible tailings may contain a certain amount of fine quartz which is not mining fa ohinfimurit you haw inoluded the faSfSTiSTo, fining tailings: but of courae the weakne* is SaKsSSSSS-"!* as**** => t s ' 011 which you have called C and D 1 presume you carefully examined updpr the microscope, as being the finer d v , X that it WM iipp arent to the 7.",. A and B were the coarser ones, and you said in legaici to a ff naked eye that it was too coarse to be tailings?— Yes. ;t. to" %r2&g£l?23z « ■»—-»**•-■ "'i —*»»■*-*■ scopicallv. ■ •■ Vi ; + . ,s .here much difference?-The specific gravity of aqueous quartz is 26, and of the otheF | V« are a, kin, -Id you not have £ rortwel. ths , could give us ~,- full remits?-! could certainly go a good deal further that, 1 did. 88 Sou took no chemical tests at all, for the silica *—No . g» It is simply a physical test you made, and nqthmg else?-Irs.