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Atoms and molecules of matter: Elementary constitution of matter. On force, and the relations between force and matter. Atomic theory, analysis and synthesis of matter, utility of waste substances—coal-tar colours, etc. The solar spectrum, spectrum analysis, spectra of gases and volatilized matter, inversion of coloured lines, constitution of sun and stars -- Vegetable organisms: Microscopic structure of the vegetable world. Algæ. Fungi. Lichens. Characeæ. Hepaticæ, or liverworts. Musci, or mosses. Filices, or ferns. Equisetaceæ, or horsetails. Marsileaceæ, or rhizospermæ. Lycopodiaceæ, or club mosses. General structure of flowering plants. Monocotyledonous, or endogenous plants. Dicotyledonous, or exogenous plants.
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