TO JOHN BARCLAY, M. D. LECTURER ON ANATOMY. SIR, THE motives which induced me to prefix your name to the first Edition of this Work, still continue to operate with undiminished force. Your general knowledge, your particular views, and the intimate connection between Chemistry and that science of which you are so great a master, qualify you in a peculiar manner to judge of the merits of a Work which you originally suggested, and which you will receive as a pledge of that intimate friendship which we have so long enjoyed. I am, |