It is now some considerable time since the fine collection of fossil vegetable remains from the district of Nágpur in Central India, which had been presented to the Geological Society by the Rev. Messrs. Stephen Hislop and Robert Hunter, was entrusted to me for examination and description. Owing to the obscure and equivocal character of many of these remains, the undertaking proved more tedious than I had expected, and there still remain many specimens to which I have not yet been able to give a thorough examination. But, as particular circumstances make it unlikely that I should, for some time to come, have sufficient leisure to devote to this pursuit, I think it best to lay before the Society at once the results of my inquiries as far as they have yet gone, rather than to keep them back for an indefinite time in the hope of completing them. The present paper, therefore, will contain the description of all the Ferns in the collection, and of all those remains of Stems and Leaves of other kinds which I have, to the best of my ability, sufficiently examined; these altogether constitute nearly three-fourths of the collection. The Fruits and Seeds, of which the specimens are pretty numerous, but obscure and difficult to determine, are reserved for further examination. I may observe, however, that, though numerous in individuals, they seem to be little varied in form and character, and present no outward evidences of a high organization.