Heat-light-electricity ... an Introduction to Chemical Physics, Designed for the Use of Academies, Colleges and Medical ... On one side should be placed all the substances that enter into the process; on the other, all the results, solid, liquid, and ... The principle laid down by Lavoisier, and established by the use of the balance, is, THAT IN NATURE NOTHING Is Lost, ... substances having different properties: thus, Water is a compound substance, and may be separated into two gases, ...