Note 14 — Chapter VII · MOLECULES AND ATOMS. THE LAWS OF GAY-LUSSAC AND AVOGADRO-GERHARDT
George Kamensky translation
The beginner must remember that an experiment and the mode in which it is carried out must be determined by the principle or fact which it is intended to illustrate, and not vice versa, as some suppose. The idea which determines the necessity of an experiment is the chief consideration.