ERRATA. 



Corrections and Alterations frorti copy. 

 Page 1, 1. 4 from top, for Wuaka, read Unaka, and so at the several places where 

 the word occurs. — p. 3, 1. 9 fr. top, for TValdeus, read Waldens ; 1. 15 fr. bottom, for 

 Wilhero, read Withero ; 1. 10 fr. bottom, for strong, read stronger. — p. 4,1. 10 fr. 

 bottom, for view, read vein; 1. 5 fr. bottom, for Six, read /SiVs.^-p. 5, 1. 7 fr. top, dele 

 and ; 1. 27 fr. top, for this substance, read this latter substance. — p. 6, 1. 11 fr. bot. 

 after smell, read of copperas ; 1. 8 fr. bot. for and thus, read had thus. — p. 7, 1. 7 fr. 

 bot. for is, read are ; 1. 5 fr. bot. insert a period after deep ; 1. 3 fr. bot. erase the 

 period after Town, and insert it after law ; 1. 2 fr. bot. erase the period after JRiver, 

 and insert and. — p. 8, 1. 11 fr. top, for veins are placed, read views are placid ; in 

 the note at bottom, for Cone, read Cane. — p. 10, 1. 9 fr. top, for cave, read cove ; 1. 

 15 fr. top, for Chitteawee, read Chilhawee. — p. 177, 1. 7 fr. bot. for familiar, read 

 peculiar. — p. 191, 1. 13 fr. top, for observed, read absorbed. — p. 210, 1. 12 fr. top, af- 

 ter water, omit the , and. — p. 237, 1. 7 fr. top, after a, insert pocket. — p. 239, lines 

 2d and 5th fr. bot. for the degrees on the card, and the object, read the object and 

 the degrees on the card. — p. 240, 1. 7 fr. top, for lens, read lines. — p. 241, 1. 13 fr. 

 bot. for several, read open. — p. 242, 1. 5 fr. top, for on, read one; 1. 14 fr. top, after 

 described, read the reflector M should he one tenth of an inch wide; 1. 17 fr. bot. 

 for screen, read screw; 1. 16 fr. bot. for PHP, read EP.— p. 244 1. I, for cellars, of, 

 read cellars, in.— p. 246, 1. 11 fr. top, for Hill, read Kill.— p. 248, 1. 7 fr. bot. for 

 Crawford, read Crawford's. 



\^ The Editor was absent on a journey, when the abstract of the experiments, 

 p. 185 of this Vol., by MM. Nobili and Melloni, by the thermo-multiplier, was in- 

 serted ; it was not observed, that a notice of these experiments had been already giv- 

 en in the preceding No., Vol. xxii, p. 370. 



' Vol. XXII, pp. 134 and 135. The expressions marked (8),- (9), (A), (B), (C), 

 should each be put = 0. 



The following alteration, came to hand too late for insertion in the proper place. 

 This Vol. p. 397, 1. 3 fr. top, and p. 398, 1. 1, for Myrmeco'ides, read Myrtnecophorus. 



