NATURAL HISTORY. 37 



The state of the various Beds of Earth found at 

 Marly-la- Ville, at the depth of 101 feet. 



J. A free reddish earth, mixed with much Veet lHch 

 mud, a very small quantity of vitrifiable sand, 

 and somewhat more of calcinable sand, - - 13 



II. A free earth or soil mixed with more 

 gravel, and a little more vitrifiable sand - - 2 6 



III. Dirt mixed with vitrifiable sand in a 

 very great quantity, and which made but very 



little effervescence with aqua fortis - - 30 



IV. Hard marie, which made a very great 

 effervescence with aqua fortis 2 



V. Pretty hard marly stone 4 

 VI. Marie in powder mixed with vitrifiable sand 5 

 V II. Very fine vitriiiable sand - 1 6 



VIII. Marie in earth, mixed with a little 

 vitrifiable sand - - - - 3 6 



IX. Hard marie, in which was real flint 3 6 



X. Gravel, or powdered marie - 1 



XI. Eglantine, a stone of the grain and hard- 

 ness of marble, and sonorious - 1 6 



XII. Marly gravel - 1 6 



XIII. Marble in hard stone, whose grain 



was very fine - - 1 6 



XIV. Marie in stone, whose grain was not 



so fine - 1 6 



XV. More grained and thicker marie 2 6 



XVI. Very fine vitrifiable sand, mixed with 

 sea fossile shells, which had no adherence with 



tiie sand, and whose colours were perfect 1 6 



XVII. Very small gravel or fine marie 

 powder - 20 



XVIII. Mui-li- L: hard otoye - 36 



Carry over 54, ft 



