554 PHILOSOPHICAL TllANSACTIONS. [aNNO 17 10. 



out again, the peristaltic motion being always forward. One of these stones 

 being thus entered, it is easy to conceive how more may be admitted, since the 

 first must dilate the passage for another that follows, and so on till the cavity be 

 full. While these stones lie there, they must offend the part, having extended 

 it beyond its natural state : so that the secretory ducts of the gland, of which 

 the inner coat of that, as well as the rest of the intestines, is constituted, must 

 be proportionally dilated ; which by an easier way is made for the liquor, they 

 separate, to be excreted. This being of a viscid and concrescible nature, must, 

 since it cannot get forth, be presumed to adhere to the substratum, the stones, 

 and so by degrees incrust them ; which crust by long confinement must grow so 

 much thicker, the ducts being kept constantly open, and the cavity more and 

 more dilated, the greater the incrustation is. So that the symptoms of this 

 patient are easily accounted for, from the oflTence given to the part, which being 

 sensible, as all membranous and fibrous parts are, the pain must grow greater, 

 in proportion as the distension is greater ; and the change of the position of the 

 tumour may very well be conceived to proceed from the different positions of 

 the intestines, by the chyle or excrements passing along them, and sometimes 

 filling one part, sometimes another, as they are protruded further and further, 

 their lubricity on the surface, length, and confinement obviously favouring that 

 phenomenon. 



I am of opinion, that the true bezoar stones are formed in the animals, that 

 yield them, in the same manner ; but whether their stomachs or intestines have 

 other cavities capable of receiving, and retaining them to their full growth, is 

 to be determined by anatomy. This I think is certain, that they have either 

 a straw, a stick, or other substance, different from the exterior matter, which 

 we call the stone, in the middle of them ; and thence I conclude the manner 

 of their formation to be the same. From the continuance of the patient*s 

 symptoms, I believe there may be more behind ; and cannot think any other 

 method more likely to extrude them, than by having his abdomen well anointed 

 with some emollient oils or liniments, and well agitated backward and forward, 

 as much and as long as he can bear, and this both morning and evening : after 

 a little while, that the stones may be presumed by this agitation to be some- 

 what dislodged, some gentle purgatives may be of use to be now and then 

 given, to carry them downwards, and withal emollient clysters to solicit it 

 gently, &c. 



The Dissection of a Person, who died of an Ulcer in the Right Kidney. By 

 Jas. Douglass, M. D. F. R. S. N° 325, p. 32. 



On opening the body of a gentleman, who died the day before, in the 45th 



