r 194 1 
He then took hold of the corners of the! 
upper glafs and lifted up, but found that- 
the cohefion was diffolved, the under glafs 
remaining behind. “ Loco citato.' 5 
Father Beccaria repeated not only the 
experiments of Symmer with the plates 
of glafs, but made others of his own, 
which prove that the cohefion far from 
being diffolved by the explolion is in- 
creafed, and becomes more intimate in 
proportion as the difcharge is ftrong. The 
following are the experiments in the words 
of the author. 
“ Laminam vitream lacrem A charta 
inaurata rit^ indutam faciebam ele&ri- 
cam immiffo in ipfam igne a catena. 
Exutam unam ipfius faciem admovebam 
faciei fuperiori laminae fimilis B utrinque 
nudae, nec ullatenus eledtricae, qus facie 
fua ima circello emminebat chartaceo fef- 
qui pollicari .... 
Quum primo disjungerem laminam A 
a lamina B jam percipiebam infolita ali- 
qua 
