i a a 
ERRATA. ; 
_ Page 74, note, line 1, for was read i is ;—p. 224, 1. 4 from - omit superficial 
p. 255, note, I. 9 from bottom, for experiment read experiments ;—p. 259, note ® 
for 33 read 34;—p. 274, note, bottom line, for call read calls. 
CORRECTIONS AND ADDITIONS. 
Prof. Henry’s piece on the Aurora, p. 143, is taken from ¢ the report of the Re- 
gents of the University of the Sais @ of oe York, tothe Legislature of the same 
in 1832, which i soon be published.—Page 154, oe 3 from the bottom, for eve- 
