APPENDIX. 103 



That, from some notes, said to be copied from those taken 

 by Dr. Taylor of Reading, in the winter 1765-6, 1 had procured 

 the following excerpt ; and Dr. Taylor, on being requested to 

 consult his own copy, had acknowledged it was a just one. 



"The lymphatic system" says Dr. Monro, "is said to take 

 place only in men and viviparous animals, and from analogy 

 in those fishes placed by Linnaeus, under the class of mam- 

 malia i 1 how far is their just extent is not certain, but we 

 have found them in some amphibious animals, as in the turtle. 2 



" It is said that this system is wanting in oviparous animals ; 

 but this is not universally true; for we mentioned that we 

 found them in a turtle, and they would probably be found in 

 other orders and genera, if properly examined. But admitting 

 that they are not demonstrable there, it doth not follow that 

 they are wanting ; for perhaps they may run only a little way, 

 and terminate in red veins. " 



That Dr. Maddocks, physician to the London Hospital, had 

 favoured me with the following excerpt from notes which he took 

 at Dr. Monro's lectures, in the winter 1765-6. 



" Lymphatics are found in viviparous animals, and therefore, 

 I presume, in the whale, which is of this kind. They are not 

 to be found in oviparous ones, fishes, nor the amphibia : this 

 is the common doctrine. / will not say how far they may be 

 found in some birds, but I have found them in some of the 

 amphibious animals, as in the turtle, running along the root of 

 the mesentery." 



That Mr. Hull, surgeon at Stevenage, had sent me the fol- 

 lowing excerpt from his notes, taken about four years ago. 



" I never could, to this day" says Dr. Monro, "find a single 

 branch of a lacteal in the abdomen of fowls, nor any lacteals, 

 or glands of the conglobate kind in the mesentery, notwith- 

 standing I have made experiments with that view very often. 

 I kept fowls twenty-four hours without food, then fed them 



1 In the excerpt it is amphibia ; but it is evident from the sense, and from com- 

 paring it with the other notes, that it should be mammalia. 



3 As to the lacteals of the turtle, there is no doubt but that Professor Monro and 

 myself have both discovered them. He, in the summer 1765; I before that time, 

 viz. in the autumn 1763 ; when I took a short description of those vessels, which is 

 published with my paper on the lymphatic system in birds, in the 58th volume of 

 the Philosophical Transactions. 



