8. Water-Metals Antimony, Lead, Tin 9. Air-Metals Zinc, Cadmium, Bismuth, Arsenic. 10. Fire-Metals Tellurium, Mercury, Silver, Gold. Every one will easily see that these groups of metals agree with their antetypes in properties, as also that this arrangement is more natural than any that has hitherto been advanced. Glancing at it, it must strike the reader that in several of the families 4 metals are present, and that none exceed this number. There are 4 sideroid, 4 titanoid, 4 platinoid, 4 arsenicoid and 4 argyroid metals. Now, as they are to be viewed as deoxydized earths, it must be assumed that in each family they are mindful of their origin, and everywhere represent the 4 earths along with the character of their family. They are earths divided unto the last members, or reduced in a primo-chemical manner. In order to recognize the parallelism of the classes, orders and families, we have only to compare the adjoining table. We cannot expect to find all the minerals ranging there in their proper place. For we are treating the subject at present only as regards its principles. Table A FIRST CLASS. EARTH-EARTHS--EARTHS. +--------------------------+---------------------------+ | ORDER I. | ORDER II. | | Earth-Earths. | Salt-Earths. | | _Silex._ | _Clays._ | | | | | _Fam. 1. Pure Silex._ |_Fam. 1. Silicious Clays._ | | 1. Quartz. | 1. Feldspar. | | 2. Iron Flint. | 2. Anorthite. | | | 3. Petalite. | | | 4. Oligoclase. | | | 5. Triphane. | | | 6. Andalusite. | | | 7. Crucite. | |_F. 2. Argillaceo-Silex._ | _F. 2. Argillaceous | | | Clays._ | | 1. Zircon. | 1. Sapphire. | | 2. OErstedite. | 2. Chrysoberyl. | | | 3. Cyanite. | | | 4. Sillimanite. | | | | | | | | | | | _F. 3. Talco-Silex._ | _F. 3. Talcose Clays._ | | 1. Emerald. | 1. Spinel. | | 2. Davidsonite. | 2. Automolite. | | 3. Euclase. | 3. Dichroite. | | 4. Phenacite. | | | _F. 4. Calcareo-silex._ | _F. 4. Calcareous-Clays._ | | 1. Leucite. | 1. Epidote. | | 2. Glaucolite. | 2. Mangan-epidote. |