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THE RELATIONS BETWEEN THE ATOMIC WEIGHTS OF THE

ELEMENTS AND THEIR PHYSICAL PROPERTIES, AFTER
LOTHAR MEYER

at ona

THE ATOMIC THEORY.

Β Ο Ο ΚΙ.

ATOMS.

CHAPTER I.

HISTORICAL INTRODUCTION-RICHTER— DALTON.

The hypothesis of atoms, put forward by the Greek p?ilosophers, and revived in modern times by great thinkers, acquired a definite form at the beginning of this century. John Dalton was the first to apply it to the interpretation of the laws which he and Richter recognised as governing chemical combinations. Confirmed by the great discoveries of Gay-Lussac, Mitscherlich, Dulong and Petit, the hypothesis has assumed a definite form, connecting many various facts of a chemical and physical nature. Fundamentally it consists of modern ideas upon the constitution of matter.

In common with correct ideas, it has grown with time, and nothing has as yet happened to stop its pro

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