310 



STATE BOARD OF AGRICULTURE. 



TABLE 16. — Rate and extent of soluhility of nnleached mineral.i and rocks when the ratio of solid to liquid 

 was 1 to 5 and mixture maintained at a temperature of 53°C. 



Days. 



Apatite. . . . 

 Amphibole. 

 Apophyllite. 



Calcite 



Chrysolite. . 

 Gypsum. . . 

 Hematite. . 

 Kaolinlte. . . 

 Oligoclase. . 

 Prochlorite . 

 Pyroxene . . . 



Quartz 



Serpentine. 

 Slderite. . . . 

 Stilbite. . . . 



0. 



C°. 



C°. 



25. 



C°. 



c°. 



32, 



C°. 



37, 



C°. 



90. 



C°. 



Talc. 



Zircon 



Banded biotite granite 



Biotite granite 



Compact lithographic limestone. 



Crumbled mica-schist 



Diavese 



Diorite 



Hornblend basalt 



Marble (dolomitic) 



Peridotite 



Quartzite (baraboo) 



Red roofing slate 



Shale 



Syenite 



.008 

 .027 

 .005 

 .005 

 .035 

 .004 

 .005 

 .008 

 .003 

 .009 

 .005 

 .010 

 .012 

 .006 



.005 

 .004 

 .008 

 .010 

 .007 

 .003 

 .007 

 .006 

 .004 

 .005 

 .006 

 .006 

 .006 

 .009 

 .005 



.010 

 .034 

 .010 

 .008 

 .041 

 .005 

 .006 

 .009 

 .010 

 .014 

 .006 

 .011 

 .025 

 .006 

 .006 

 .005 

 .010 

 .011 

 .010 

 .004 

 .010 

 .010 

 .008 

 .006 

 .006 

 .010 

 .014 

 .010 

 .008 



.010 

 .035 

 ,014 

 .010 

 .040 

 .005 

 .008 

 .011 

 .013 

 .015 

 .010 

 .011 

 .025 

 .010 

 .007 

 .006 

 .015 

 .013 

 .012 

 .005 

 .010 

 .010 

 .010 

 .010 

 .010 

 .010 

 .021 

 .012 

 .012 



.020 

 .050 

 .020 

 .018 

 .045 

 .020 

 .010 

 .018 

 .015 

 .016 

 .040 

 .023 

 .025 

 .012 

 .012 

 .017 

 .023 

 .016 

 .012 

 .007 

 .013 

 .022 

 .017 

 .020 

 .027 

 .021 

 .025 

 .016 

 .014 



.020 

 .051 

 .020 

 .025 

 .046 

 .022 

 .013 

 .020 

 .015 

 .017 

 .050 

 .045 

 .027 

 .017 

 .024 

 .017 

 .023 

 .020 

 .014 

 .010 

 .016 

 .027 

 .019 

 .020 

 .026 

 .023 



.022 

 .052 

 .020 

 .027 

 .046 

 .023 

 .015 

 .021 

 .015 

 .020 

 .051 

 .046 

 .035 

 .018 

 .026 

 .018 

 .023 

 .020 

 .019 

 .010 

 .018 

 .027 

 .019 

 .021 

 .028 

 .024 



.034 

 .060 

 .031 

 .0.52 

 .061 

 .046 

 .024 

 .040 

 .045 

 .039 

 .085 

 .085 

 .062 

 .029 

 .100 

 .022 

 .044 

 .055 

 .039 

 .027 

 .043 

 .045 

 .040 

 .035 

 .049 

 .065 



.020 

 .020 



.023 

 .021 



.045 

 .075 



Considering first, table 15 which contains the data obtained at room tem- 

 perature and comparing it with the corresponding tables 5 and 6 it will be 

 readily seen that with few exceptions the solubilitj^ in all the rocks and min- 

 erals is much smaller at the ratio of 1 of solid to 5 of liquid than it is at the 

 ratio of 1 of solid to 0.75 of liquid. Indeed, in the majority of minerals and 

 rocks the magnitite is only one-half or one-third as large at the ratio of 1 to 

 5 as it is at the ratio of 1 to 0.75. In some of the minerals, however, such as 

 the calcite, gypsum, hematite, limonite, etc., the solubility product at cor- 

 responding dates is about the same at both ratios. 



These results, therefore, are very much the same as those obtained with 



