[ 6 ] 
refped correfponding with thofe of genuine fining. 
On commixing three fpoonfuls with a gallon of malt 
liquor, in a tall cylindrical giafs, a vaft number of 
curdly mafies became prefently formed, by the re- 
ciprocal attradion of the particles of ifinglafs and the 
feculencies of the beer, which, increafing in magni- 
tude and fpecific gravity, arranged tliemfelves ac- 
cordingly, and fell in a combined (late to the bottom, 
through the well known laws of gravitation for, 
in this cafe, there is no eledive attradion, as fome 
have imagined, which bears the leaft affinity with 
what frequently occurs in chemical decompofi- 
tions. 
Thefe phenomena are adduced here as correla- 
tive proofs of the impradicability of making ifinglafs 
by the previous redudion of the finewy parts of fifh 
into jelly and it feems evident, that the clarifying 
adion of ifinglafs depends principally upon a crude 
minute divifion, not folution of its parts, which is 
ff ill farther confirmed, by diluting a few drops of 
fining with fair water in a giafs ; for thus the fiender 
filaments become confpicuous to the eye, efpecially 
when aflifled with a double convex lens, but thefe 
immediately difappearon an addition of hot water. 
As the general procelfes for making ifinglafs ap- 
pear from hence illufive and erroneous, the long 
concealed principles of its manufadure into the va- 
rious common forms and fhapes become more ob- 
vious and comprehenfive. If what is commercially 
termed long or fhort fiapled ifinglafs be fteeped a 
few hours in fair cold water, the entwifted mem- 
branes will expand, and reafiume their original beau- 
3 tiful 
