SOME OBSERVATIONS AS TO CHEMICAL EXAMINATION OFINK MARKS BY ALLEN--ERASING OF INKS BY CHEMICALMEANS--APPROVED CHEMICAL TESTS IN THE ASCERTAINMENT OF INK CONSTITUENTS.
A COMPILATION of the methods of Robertson, W. Thompson (Lord Kelvin), Irvine, Wislar, Hoffman and others, relative to the chemical ex...
***Download NovelToon to enjoy a better reading experience!***
Updated 113 Episodes
Forty Centuries of Ink
Episode 56
Comments