APPENDIX, 



RELATING TO 



THE DISCOVERY OF THE LYMPHATIC SYSTEM IN BIRDS, 

 FISH, AND THE ANIMALS CALLED AMPHIBIOUS; 



BEING 



A VINDICATION OF THE AUTHOR*S RIGHT TO THESE DISCOVERIES, IN OPPO- 

 SITION TO THE CLAIM OF DR. ALEXANDER MONRO, PROFESSOR 

 OF ANATOMY IN THE UNIVERSITY OF EDINBURGH. 



AN account of the lymphatic system in birds, fish, and a 

 turtle, was given to the public in the Philosophical Transac- 

 tions, vols. Iviii and lix, for which communications the Royal 

 Society has since honoured me with their gold medal. These 

 discoveries Professor Monro claimed, in a letter read before 

 that most respectable body on the 19th of January, 1769, and 

 has since persisted in that claim, in a pamphlet called ' A State 

 of Facts/ &c., printed at Edinburgh, 1770. Now as both 

 that letter and the pamphlet must of course have been seen by 

 many who know not what can be urged against them, I think 

 it but a duty I owe my own character to lay before the public 

 the proofs I have collected of their insufficiency to procure 

 Professor" Monro the credit of having anticipated me in those 

 discoveries ; and I hope that, although in doing this I shall 

 trespass on the time and patience of the reader, yet it will be 

 some excuse for me that I had endeavoured, as much as could 

 be expected on my part, to settle the dispute without troubling 

 the public with it. 



As Professor Monro has, in this pamphlet, not only endea- 

 voured to vindicate his claim to these discoveries, but has like- 

 wise censured me on account of a paper on the emphysema, 

 it is necessary, before I come to the controversy about the 

 lymphatics, that I should relate what has passed between us on 

 that occasion. 



In the third volume of the ' Medical Observations and In- 



