VOL. XIX.] PHILOSOPHICAL TRANSACTIONS. 221 



Two Ohservalions. One on the Death of a Dog on firing some Follies of small 



Shot [Arms'] : the other on the Polypus of the Lungs. By Mr. Robert Clarke. 



N°235, p. 779- 



On proclaiming the peace in Nov. \QQ7, two troops of horse dismounted 

 and were drawn up in a line, in order to fire their vollies ; the centre of their line 

 faced a butcher's door, who kept a very large mastiff dog, a dog of great cou- 

 rage for fighting ; this dog was laid by the fire asleep ; but on the first volley he 

 immediately started up, ran into a chamber, and hid himself under the bed ; 

 on a second volley the dog rose, run several times about the chamber, with 

 violent tremblings and strange seeming agonies ; but on the third volley, he 

 ran about once or twice violently, and fell down dead immediately, throwing 

 out blood from his mouth and nose. 



A poor man for three years past has frequently coughed up shapeless lumps, 

 like clotted blood, some larger and some smaller. They came up after a 

 continued coughing of almost half a day or night, and he knows when they 

 come by first feeling great pains round his chest ; he has voided hundreds of 

 them in these three years, and all alike, though of different sizes. They do not 

 seem, he says, to have life ; but he has pressed a sliminess out of the body, 

 and also through that part which seems to be the head. He is now very meagre, 

 and complains of great pains about his chest and back part answerable to it. 



Dr. Lister's opinion of these substances is, that they are shaped in the remoter 

 and deeper branches of the aspera arteria, and therefore so difficult to get up. 

 They are nothing else but the viscous excretions of the small glands, hard 

 baked in those moulds, whose form they receive, and may, if we strain a me- 

 taphor, be called polypuses of the lungs. 



Account of a Negro Boy dappled in several Places of his Body ivith White Spots. 

 By mil. Byrd, Esq. F.R.S. W 235, p. 781. 



This negro boy, of about 1 1 years of age, was born in the upper parts of 

 Rappahanock river, in Virginia ; his falhfjr and mother were both perfect 

 negroes, and the boy himself, till he came to be three years old, was in all 

 respects like other black children; and then, without any distemper, he began 

 to have several little white specks on his neck and breast, which increased with 

 his age, both in number and size ; so that now from the upper part of the neck, 



all which they found agreeable to his description, and ordered they should be carefully preserved in 

 their repository. — Orig. 



From the description of I he denies molares in the original paper, the skeleton appears clearly 

 to have been that of an elephant. 



