PBELIMINARY HANDBOOK OF THE DEPARTMENT OF GEOLOGY. 41 



coal, 1 of albertite, and 1 each of pyrolusite, stibuite, barytes, and 

 gypsum ; Nova Scotia by 2 specimens iron ore and 1 of manganese; Queen 

 Charlotte's Island by 2 specimens coal ; Newfoundland by 1 specimen 

 copper ore. 



MEXICO. 



The various States of the llepublic are represented as follows : Sonora 

 by some 50 specimens gold, silver, lead, and copper ores and coals ; 

 Chihuahua by 14 specimens silver and copper ores ; Durango by 9 spec- 

 imens silver, tin, and iron ores; Pachuca by 5 specimens silver ores; 

 Mexico, 12 specimens silver and iron ores, sulphur, and clays; Zacate- 

 cas, 17 specimens silver and copper ores ; Jalisco, 1 specimen each of 

 iron ore, zinc, copper ore, and barite; San Luis Potosi, 1 specimen each 

 of tin ore, sulphur, and gypsum ; Aguas Calientes, 3 specimens ; Vera 

 Cruz, 1 specimen pumice; Pueblo, 1 specimen mercury, 1 manganese 

 ores, and 2 specimens onyx ; Oaxaca, 13 specimens silver, lead, copper, 

 tin, and iron ores, coals, and gypsum. 



As may be noticed by a perusal of the lists given above many impor- 

 tant localities, both within the limits of the United States and beyond, 

 are quite unrepresented. It is to be hoped that friends of the institu- 

 tion will be sufficiently interested to contribute the desired materials. 



Concerning the large quantities of foreign materials previously de- 

 scribed as formiug a portion of the geographic series of this exhibit 

 little need here be said. This for the reason that these collections will 

 shortly be thoroughly overhauled, the better class of materials worked 

 into the systematic series, and the remainder stored. A great deal of 

 this present exhibit can have little interest to the general public and 

 must give way to a better class of material. 



The following shows the form of label in use in this series: 



OILVER AND LEAD ORE.— Argentifer- 



^ ous Galena with Pyrite, Blende, Quartz, 

 and Mica. From the mines of the Warren 

 Silver and Lead Company. 



Warren, Grafton County, New Hampshire. 30,176. 



Gift of Warren Silver and Lead Company. 



TRON AND ZINC ORE.— Franklinite, 

 A Zincite, and Willemite with Calcite. Used 

 in the manufacture of spiegeleiscn, and of zinc 

 oxide for paint. 



Buckwheat Vein, Franklin, Sussex County, New Jersey. 



12,264. 

 Centennial Commission, 1876. 



