AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[SECOND SERIES} 
Art. XXXV.—Observatio 
ns upon the Practicability, of reachin 
the North Pole—with a map; by Isaac I. ii D. : 
vere before the Ameri 
ican Association for the Ad t of 
sarin oa held at Paltithote, May 5, 1858. ise Be 
I venture to trbspass upon the time of the Assidigtionl for the 
a of ead attention to a aera = of scientific 
be don o—for seuiasieg the ex- 
egun fot emer edad on most ae 
ree of our =a iti is for this purp 
before this tive body. of merican sc 
ve tie White ; ie Fei. 
aris pew taiier Me oe abe mechvickied, the 
oa whole fabric revolves, are so ke in 
Es, x Ne NO 1858. 
