An inaugural dissertation on the compression of the brain from concussion : 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 thirtieth day of April, 1793. By John B. Hicks, citizen of the state of New-York. [One line from Ledran].