28 
Gen. Phytolithus. Fam. Radicum. 
corticira- 
dix. 
covvpressi- 
radix. 
In water-courses ; sometimes in the veins in the limestone strata near 
Worksworth, Bakewell, &cc. It also occurs, we have been informed, in 
gravel pits about Derby. 
/ 
t t t t t- Reliquia radicalia. Rhizolithi. 
14. Phyt. Radicis teretis siinplicis transversixn rugatae, corticeque crassa 
a;qua obductae. 
Tab. 9. Fig. 2, 3. 
Thick-coated FossiTroot. 
Sedes : strata vetula, arenaceo-argillacea. 
Chapel-in-ihe-Frith, Bakewell, See. 
SPECIMINA. 
b. S. semiforme. 
c. S. expletum decorticatum. 
d. S. complanatum decorticatum. 
Obs. Specimens Tivithout any vestige of the coat or bark are most common. 
15. Phyt. Radicis simplicis oblong* compress* : lugis longitudinalibus. 
Tab. 9. Fig. 4. 
Compressed Fossil-root. 
Sedes : strata vetula, arenaceo-argillacea. 
Found with the foregoing. 
Obs. Roots are rare among petrifactions; and we were for sometime doubtful, if we ought to 
rank the above species as such ; but, the great number of specimens we have met with, since this 
work began to be published, retaining constantly the same characters and appearances, leaves no 
room for hesitation in pronouncing them to be genuine Rhizolithi, although the trees to which 
they have belonged remain unknown. 
END OF VOLUME FIRST. 
[d. lYON, PRINTER, WIOAN.] 
