PART I.

ATOMS AND MOLECULES OF MATTER.

SECT. PAGE

I. ELEMENTARY CONSTITUTION OF MATTER 1

II. ON FORCE, AND THE RELATIONS BETWEEN FORCE AND 23 MATTER

III. ATOMIC THEORY, ANALYSIS AND SYNTHESIS OF MATTER, 93 UTILITY OF WASTE SUBSTANCES—COAL-TAR COLOURS, ETC.

IV. THE SOLAR SPECTRUM, SPECTRUM ANALYSIS, SPECTRA OF 129 GASES AND VOLATILIZED MATTER, INVERSION OF COLOURED LINES, CONSTITUTION OF SUN AND STARS