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of all forts of Lengths and Bignefs, in fhort, of all 
the Shapes which the different Cafes may require. 
1 have the Honour to be, &c. 
Rouen, May zo. 
1748. N. S. 
Le Cat. 
Addition to the Defcnption of the Glaffes for pre- 
ferring things in Spirit of Wine, by "Dr. lc Car, 
fag. 6. 
In ufing the Bottle, of which I have given a Dc- 
fcriprion, I found that it was attended with one In- 
convenience. 
The circular Groove, the Edge of which was 
turn’d up on the Infide of the Bottle, retained a fmall 
Quantity of the Water, when I emptied and rinfed 
it 5 fo that it was impoflible to do it thoroughly. 
Wherefore I caufed this VelTel to be made, as rcpre- 
fented in the annexed Figure, Tab. I. Fig. 1. which 
is a Settion of it ; and where it appears that the Groove 
A A is placed on the Outfide of the Edge of the Bot- 
tle. By this means every Drop of the contain’d 
fluid can be pour’d our. 
It is eafy to fee that the circular Border BB of 
the Cover is to enter into thefe Grooves A A, which 
are fill’d with Oil or Quickfilver ; and that the Hook 
C, of the fame Cover, is deftined to fufpend in the 
Liquor fuch Pieces as are to be preferved in it. 
