C *79 ] 
Scales, or Concretions, of different Bigrtefs, which 
he -collefted himfelf, in differing thefe Creatures ; 
feveral of the formed Stones of his own taking out, 
fome of a larger Size, which were given him by a 
Gentleman, who took them out of the Cray-fifh in 
the River "Donne , and others hill larger, which he 
chofe from the Apothecariry of the Army. Thefe 
laft were from ffijiracan'-, and he obferves that the 
Fifh and Stones are much the largcft in the great Rivers 
there, where there are Filhers for Cray-fifh on ac- 
count of the Stones only ; which they feparate 
from the Fifh at different Fifheries after different 
Manners; at fome they arc beaten to Pieces with 
wooden Peftles j then wafhing away the Flefh and 
Shells, the Stones are found remaining at the Bot- 
tom of the Veffcl; ac others they are laid in Heaps 
till they rot; and then, being wafh’d, the Stones arc 
eafily feparated and gather’d. The Price comes to 
a Groat or Sixpence a Pound. All the Apotheca- 
ries Shops throughout the whole Ruffian Empire 
ate furnifhed with them, and great Quantities belides 
arc exported. 
This, Sir, feems to be a very particular and exaft 
Account of thefe Produ&ions, which are frequently 
preferibed in Medicine. Their Price, we find, is 
extremely low in the Countries where they are ga- 
ther’d ; notwithstanding which, fictitious Bodies, 
made of Chalk, Tobacco-pipe Clay, or other fuch- 
like Materials, caft in Moulds, fo as to reprefent 
A a real 
