110 APPENDIX. 



in the mesentery of fowls, nor in fishes, I judged these animals 

 to be destitute of lymphatics ; but Mr. John Hunter having 

 discovered conglobate glands in the neck of a swan, put me on 

 further search, and I then found them plainly in common 

 fowls, but never could find any lacteals in their mesentery, 

 though experiments were tried by means of coloured tinctures 

 of various sorts, as of rhubarb, &c." 



From this excerpt it is evident that Professor Monro, when 

 I attended his lectures, taught, as he has since done, that what 

 he knew of the lymphatics he learned from Mr. Hunter, and 

 as to the lacteals he could not find them ; and this was in the 

 spring 1762, the very year after the time when, according to 

 his letter read before the Royal Society, he should have seen 

 these vessels, and mentioned them in his lectures : and finally, 

 to complete the whole, he now complains of me for passing in 

 silence what I might then have heard him observe concerning 

 them. 



Thus have I endeavoured to obviate the arguments in Dr. 

 Monro's publication, and the reader must now, I think, see 

 clearly, not only the impropriety of the Doctor's asserting his 

 right to these discoveries, but the still greater impropriety of 

 his persisting in that assertion. 



Besides claiming these discoveries, Dr. Monro has, in his 

 letters on the subject, treated me in a manner which I cannot 

 pass unnoticed. Thus, he first gives the name of misinterpreta- 

 tion to my concluding from the notes of his pupils, that he had 

 not seen " what he believed" the lacteals, and then adds : 



" Should we even suppose the above misinterpretation venial, 

 what must the reader think, when he is told, you was informed 

 that a gentleman, who had attended my lectures two years at 

 least before I injected the lacteals of a turtle, that is, nearly 

 about the time you did, declared he heard me then speak of 

 having seen the lacteals in fowls ; and yet that you continued 

 to vent this injurious supposition? That is, you must have 

 sunk this material information, since it overturned the whole 

 purport of your story/' 1 



Now here is an accusation, which, were it true, would fall 

 heavy upon me. But the case is this : I had indeed heard that 

 a gentleman, who attended Professor Monro' s lectures about the 

 1 See his State of Facts, p. 23. 



