[ 6 o 4 * ] 
Fig. 1 6. does that of the lower Hemifphere i in 
both of which the Letters of Reference anfwcr to 
thole in the other Figures, {hewing where the out- 
ftde Lines abutt upon thele Sections. 
An Explanation of the Figures in Tab. I. 
i. Mr. Collinfons fpheroidal Stone. 
2. The Section of the lame. 
3. The Face of the Dudley FolTil rolled up. 
4. The Back of the fame. 
f. The fore and under Parr, with the Tail folded 
clofc under the Jaw. 
6. Dr. Slaw's FolTil half extended. 
7. The Face of the fame. 
8. The under Side of the fame, being folded but 
half-way, leaving a Space between the Jaw and 
the Tail. 
9. Dr. Tocock’s extended FolTil, the Back upper- 
moll. 
10. A fide View of the fame. 
11. A fide View of another folded up. 
12. A front View of the fame with the Tail 
folded clofe under the Jaw. 
The Letters of Reference in the Defcription an- 
fwer to the fame Parts in Fig. 9, 10, 11, and 
12. 
13, 14, if, 16, are the Figures of the, Stone, de- 
feribed in Art. XVI. in all which the Letters refer 
to the fame Lines. 
Tab. II. Represents a large Mafs of Lime (lone dug 
up at Dudley, > \ which are imb< 'Xd many of 
thefe Folllls, together with feverui other petrified 
Shells. 
NOTE. 
