[ 9 * ] 
The prime Conductor. 
B, The flk Lines. 
The coated Phial. 
, Its Hook communicating with the prime Con- 
ductor. 
E E, The Wire reaching from the Coating of the 
Phial to the left Hand of the Obferver, being 
more than a Mile in Length. 
The Place of the Obferver. 
/ \» A fuppofcd Line, drawn upon the Explofion 
through his Body and Arms. 
GG y Another Wire, of the Length of EE, which 
goes from the right Hand of the Obferver to H. 
H, The fhort iron Rod to make the Explofion. 
2 . Some 
