614 REPORT ON NATIONAL MUSEUM, 1886, 



Rhyolite. Fine ; very light colored. State of Zacatecas. Mexican Geograi)liical 

 Exploring Commisaion, 1885. 37745. 



Fine ; light brown. State of Oaxaca. Mexican Geographical Exploring Com- 



mission, 1885. 37748, 



Light red. State of Oaxaca, Mexican Geographical Exploring Commission, 



1885. 37746, 



. Fine ; light lavender, i)ink and light colored ; friable. Three specimens. State 



of Aguas Calientes. Mexican Geographical Exploring Commission, 1885. 

 37766. 



Reddish; 5-inch cube. Leon, State of Guanajuato. J. S, F, Batchen, 1884. 



36796. 



Fine ; light colored. State of San Luis Potosi. Mexican Geographical Explor- 



ing Commission, 1885. 37739, 



Gray ; 5-inch cube. J. S. F. Batchen, 1884. 36790. 



Light colored. Santa Rosa. Mexican Geographical Exjjloring Commission, 



1885. 37689, 



Gray ; 5-inch cube, San Joaquin, J. S. F. Batchen, 1884. 36801. 



Rhyolite pitchstone (?). Bluish gray; glassy. State of Mexico. Mexican Geo- 

 graphical Exploring Commission, 1885. 37768, 



Andesite. Reddish; fine and compact. State of Mexico. J. S. F. Batchen, 1884, 

 36791. 



Dark gray ; finely vesicular. State of Mexico. Mexican Geographical Explor- 



ing Commission, 1885. 37800. 

 Andesite (?), Dark gray; fine and compact. State of Hidalgo. Mexican Geo- 

 graphical Exploring Commission, 1885. 37807. 



Brown. Tenacingo, State of Mexico, Mexican Geographical Exploring Com- 



mission, 1885. 37772. 



Fine; dull red. State of Mexico. Mexican Geographical Exploring Com- 



mission, 1885. 37769. 

 Hypersthene andesite. Reddish. Carved block 13 by 9 by 4 inches. State of 

 Hidalgo. Mexican Geographical Exploring Commission, 1885. 37771. 



Light colored. State of Zacatecas. Mexican Geographical Exploring Commis- 



sion, 1885. 37707. 



Medium; light brownish. State of Zacatecas. Mexican Geographical Explor- 



ing Commission, 1885. 37783. 



Finely vesicular ; reddish. State of Mexico. Mexican Geographical Exploring 



Commission, 1885. 37712. 



Black ; finely vesicular. Ixtapalapa, State of Mexico. Mexican Geographical 



Exploring Commission, 1885. 37789. 

 Hornblende andesite. Compact ; gray. State of Oaxaca. Mexican Geographical 

 Exploring Commission, 1885. 37752. 



Fine ; light red. State of Mexico. Mexican Geographical Exploring Commis- 



sion, 1885. 37770. 



Fine ; very light gray. State of Mexico. Mexican Geographical Exploring 



Commission, 1885. 37703. 



Fine ; reddish brown. Stat« of Mexico. Mexican Geographical Exploring 



Commission, 1885. 37735. 



Fine ; dull red. Tenamingo, State of Mexico. Mexican Geographical Explor- 



ing Commission, 1885. 37741. 



Coarse ; light gray. Ixtapalapa, State of Mexico. Mexican Geographical Ex- 



ploring Commission, 1885. 37711. 



