[ 3°4 ] 
The Letters //and hh anfwer to thofe of Fig. i.and 
Fig. 2. only the concave Part fi,fi, is what fitted 
and joined to the round Surface of Fig. 2. 
The following Figures fhew fevcral Views of the 
two Stones found in the Mare. 
Fig. 4. Reprefents the triangular Stone. 
Fig. 5, 6. Reprefent the feme fawn afunder, fhew- 
ing the Divifions of the fevcral Shells, with the 
Nucleus and the End of the iron. Nail proje&ing 
from the Centre.. 
Figl 7. Exhibits the larger Stone intire. 
Fig. 8. Part of the feme fawn off, reprefenting the 
feveral Shells, with one Piece of the iron Nail in 
the Middle. 
Fig. 9. The other Piece of the Nail that was fawn 
off. 
N. B. One of the three Stones mentioned p. 298. 
is lately come to Hand it meafures round twelve 
Inches one Way, and eleven Inches another Way. 
This Stone, together with all the above -mention'd, 
and the fevcral chemical Preparations produced 
from them, arc repofited in the Mufeum of his 
Grace the Duke of Richmond. 
vm. 
