. Annexe aux Journaux du Sénat et l'Assemblée générale de la ... session de l'Assemblée législative de l'État de Californie. tirées, filtré et séché. La capacité estimée est de 10 tonsa jour. Le sable n'est pas à l'heure actuelle à l'étude pour la commercialisation. 138 RAPPORT DU STATK MINÉRALOGISTE. Harvey fosse. Portland Cement Company États du Pacifique Pacifique,P>uildin"r, San Francisco, propriétaire. Cela fait partie d'une superficie de plus de 1 000 acres de terres récemment acheté de Fred Harvey. La fosse est justeast de l'ancienne mine de charbon, Harvey et un mile au nord de Carhfjiidalcstation. La terre est iii voit. .{J, M:5 et al., T., R. N. 7

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. Appendix to the Journals of the Senate and Assembly of the ... session of the Legislature of the State of California. drawn, filtered and dried. The estimated capacity is 10 tonsa day. The sand is not at present being considered for marketing. 138 REPORT OF STATK MINERALOGIST. Harvey Pit. Pacific Portland Cement Company Consolidated, Pacific P>uildin«r, San Francisco, owner. This is part of over 1000acres of land recently purchased from Fred Harvey. The pit is justeast of the old Harvey coal mine, and one mile north of Carhfjiidalcstation. The land is iii Sees. .{J, M:5 et al., T. 7 N., R. 9 E. Blue clay occurs with an overburden of from two to three feet ofsoil in which are found occasional concretionary boulders of red ironoxide. The overburden is removed by i)lowing and scrapiiifr, using atractor for power. The clay has been dug to a depth of about 12 feetby a small steam shovel. This loads the clay into trucks which delivei-it to the railroad. This clay contains about 32% alumina (dry weight) and is beingused in the manufaetuiie of cement. It is also u.sed in making sewerpipe and terra cotta.. Harvey Clay Pit of racKlc rortlaiul Conxiit (unipiiiiy, near Cut Ixindale. Io7ic Fire Brick Comixnijf. Main ofliee. Hialto liuilding. San Fran-ci.sco. Wm. Brown, lone, superinff-ndent. The jihmt is h miles eastof lone, on the Amador Central Bailway. There are five round kilns, each •?() feet in diameter, down draft, witha capacity of 65, 000 to 70, 000 bricks each. Crude oil is used for fuel.It is atomized by eompres.sed air, furnished by an electricallydriven centrifugal eoniitressor, fmnishing just suflieient pressure foratomizing. Clay is obtained in jtarl from liinenln, IMaeer County, and in |)artfrom a pit one nnle fiotn the plant m-ar Sh«|)ards and from a grf>gpit near Bacons mottled elay pit. on the .laekson highway. The Lin-coln clay is said to carry a little more silica and to sh«tw less shrinkagethan local clay. The grog pit also has a high silica cont

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