AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[THIRD SERIES] 
Arr. XXX.—On the nature and duration of the discharge oe a 
Leyden Jar connected with an induction coil; by OcpEen N 
Roop, Prof. of Physics in Caines Boliesk art II. 
IN the first and second parts of this paper,* I described with 
some minuteness the nature and duration of the discharge of a 
' oderate sized and of a smell jar, she connected with an 
induction coil; one i point has, however, thus far 
ee renctes, ee to = sede ce the present paper 
* This Jou 
t Prof. J ootph Le Conte te choot aaa elaborate paper on the subject of 
binocular vision (this Jo haat July, 1871), na oy oged to the fact that most writ- 
6m 
183 ae iy urati 
a 5, part ii, p. 5 BO) santrpd t dhe. seeels ee eas aes 
Second. Mr. Le Conte, on the authority of De la Rive and Daguin, 
tH 
i 
i 
pieces 
eee tee ong at oie 
Sige generated a ened electric light, 
an Gi en line of weak ‘th 
®xactly the same as though they ha from a 
Bie he cngerdg ae pee tank ine tommnion et tho discharge of «Leyden Jr A, 
Am. Jour. Son Tacx Sentes, VoL. IV, No. 22.—Ocr., 
