ERRATA. 
Page 29. Among the synonymes of Hydrous Peroxide of Iron, for “ Rhombohedral Iron 
Ore, Jameson ,” and Rhomboedrisches Eisen-Erz, Mohs,” read “ Prismatic Iron Ore, 
Jameson, and Prismatisches Habronem-Erz, and Prismatoidisches Habronem-Erz, 
Mohs.” 
Page 205, 4th line from the bottom, for “ P on o 137° W 13",” read “ P on o 127° W 13".” 
Page 247, 19th line from the bottom, for “ o to the edge between f” read “P to the edge.” 
Page 290. At the top, for “Fig. 194,” read “Fig. 194 bis.” 
Page 301, 10th and 11th lines from the bottom, for “ k on k 55° 4',” read “ k on k 155° 4'.” 
Page 302, 7th line from the bottom, for “ Fig. 223,” read “ Fig. 223 bis.” 
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.” 
