ERRATA. 



Page 29. Among llic synonymes of Hydrous Peroxide of Iron, for " Rhombohedral Iron 

 Ore, Jameson,'^ and Rhomboedrisches Eisen-Erz, Mohs," read " Prismatic Iron Ore, 

 Jameson, and Prisnialisclies Habronem-Erz, and Prismatoidisches Habronem-Erz, 

 Mohsr 



Page 205, 4th line from the l)otlom. for " P on o 137^ 5' 13"," read "P on o 127° S' 13"." 



Page 247, 19th hne from the bottom, for " o to the edge between /"," read " P to the edge." 



Page 290. At the top, for "Fig. 194," read "Fig. 194 few." 



Page 301, 10th and 11th hnes from the bottom, for " k on k 55'^ 4'," read " k on k 1.55'^ 4'.'" 



Page 302, 7tli hne from the bottom, for " Fig. 223," read " Fig. 223 6w." 



Page 474. The reference "page 257" should be "page 247." 



Page 477, 1st line, for " Mag. Carb. of Magnesia and Qurtz," read " Magnesian Carbonate 

 of Lime and Quartz." 



