ERRATA. ., 
Part III. 
On page 167, line 6 from the bottom, for ‘‘ Plate IV,” read Plate V//. 
On page 184, line 5, for ‘‘ Bronson hill,” read Bronson's kiln. 
On page 184, line 13, for ‘*S. 28° E,” read S. 28° W. 
The same upon page 212, line 20. 
On page 187, line 16, ‘‘ Mrs. M. Gale’s” should be placed under Belmont. 
On page 187, line 35, ‘‘ K. Hall's” should be placed under Gilford. 
On page 187, lines 4 and 5 from the bottom, for ‘south corner,” read Strafford Cor- 
ner. 
On page 188, last line, for ‘‘ Newbury,” read Sutton. 
On page 189, line 15 from the bottom, ‘‘E. C. Sanborn’s” should be placed under 
Hampton Falls. 
On page 194, lines 6 and 7 from the bottom, ‘‘ Lufkin’s and Howe’s” should be placed 
under Rumford. 
On page 202, last line, insert ‘‘ not” before distinguishable. 
On page 203, line 11, for ‘‘ south-east,” read south-west. 
On page 302, first line, for ‘‘ rounds,” read mounds. 
Part IV. 
On page 8, line 8 from the bottom, for ‘‘ clacite,” read calcite.’ 
On page 80, line 7 from the bottom, for ‘‘ Fig. 2 on Pl. 9,” read Fig. 9 on Fl. 2. 
On page 102, in the formula, for ‘‘Al,” read A/?. 
On page 15, and elsewhere in the first chapter, for ‘‘ pinnacoid,” read pénacoid. 
PART V. 
On page 44, line 7 from the bottom, and page 45, line 26, for ‘‘slums,” read s/zmes. 
