424 Miscellaneous Intelligence. 
Writing on a Screen.—Every lecturer has felt how unsatisfac- 
engraving. 
B. Height of Mt. Washington.—The height of Mt. Washington, 
attributed on p. 378 of last volume by this Journal to Prof. Bond, 
was obtained by Prof. Guyot. 
OBITUARY. 
Dr. Samus Luraer Dana died at Lowell, Mass., March 11th, 
1868. His death resulted from a fracture of the thigh bone caused 
by falling on the ice some weeks before. 
Dr. Dana was born at Amherst, N. H. in 1795. He fitted for 
college at Phillips Academy, Exeter, and entered Harvard Univer-, 
at the age of fourteen. Immediately after graduation he went 
nto t y, and served as lieutenant of artillery till the close of 
the war of 1812. Completing his medical course of studies in 
1818, he practiced as a physician for a few years. But having @ 
ecial fondness for chemistry he relinquished his medical practice 
2 manufacture hemicals and continued to super- 
co 
: mk to matters connected with calico printing, eeden 
Belaw spe’ Success of the Company, by whom he was enplere 
Being ofa progressive disp sii ion he conceived some pe culiar 
” 
