ie Description of two new Voltaic Batteries. 271 
Tam inclined to believe that the seed is taken internally 
bythe worm, and causes its death; and thatin the following 
spring it veges: finding a suitable bed or soil in the de- 
orm. 
cayed w 
JACOB CIST. 
?. | ces 
_ MECHANICS, PHYSICS, CHEMISTRY, AND THE 
* 
| 7 Ant. XV Description of two new Voltaic Batteries ; 
Eur pin oon. M. D. Professor of at = 
the: University of Maryland. 
j 
: ‘ {In a Letter to the Editor. ] 
Dear Sir, 
- Peruars no branch of science iS more important at 
this moment than electricity. 
are power possessed by certain galvanic’ arrang ements 
to elevate temperature to o extraordinary degrees, when as- 
ed with our Seacer views of chemical theory, renders 
tly objects of great interest. But when we reflect 
e phenomena which have resulted from a power 
y also possess to affect the magnetic condition of 
ve cannot be surprised that so much of the atten- 
‘scientific world is. fs 
ents of Oersted, ae Tago, 
rous | to repeat them an s 
; galvanic instruments, all those circumstan- 
al facility that have been found useful in 
