CHAPTER I.
MICROSCOPIC FORMS OF LIFE--THALLOPHYTES, PTERIDOPHYTA, PHANEROGAMÆ--STRUCTURE AND PROPERTIES OF THE CELL--PATHOGENIC FUNGI AND MOULDS--PARASITIC DISEASES OF PLANTS, MAN, AND ANIMALS--INDUSTRIAL USES OF FUNGI AND SACCHAROMYCETES--DESMIDIACEÆ AND DIATOMACEÆ--LICHENS, MOSSES, FERNS, FLOWERING PLANTS 353