An inaugural essay on the yellow fever, as it appeared in this city in 1795 : Submitted to the public examination of the faculty of physic, under the authority of the trustees of Columbia College, in the state of New-York, William Samuel Johnson, LL.D. president, for the degree of Doctor of Physic, on the 3d of May, 1797. By Alexander Hosack, Jun. A.M. of New-York.