An address on the botany of the United States microform : delivered before the Society for the Promotion of Useful Arts at the capitol, in the city of Albany, on the 9th day of February, 1814 : to which is added A catalogue of plants indigenous to the state of New York (engelsk)
Observations on the geology of the United States of America microform : with some remarks on the effect produced on the nature and fertility of soils, by the decomposition of the different classes of rocks : and an application to the fertility of every state in the union in reference to the accompanying geological map (engelsk)