138 THE MEDALS OF CREATION. Cuap. VI. 
southern shore of the Bay of Fundy, in Nova Scotia, where 
the cliffs, which are about two hundred feet high, are com- 
posed of carboniferous strata, consisting of coal, clay, grit, 
and shale, in which numerous erect trees, probably Sigilla- 
riz, are seen on the face of the cliff; there are ten rows one 
above another, indicating, in the opinion of Sir C. Lyell, 
repeated subsidences of the land, so as to allow of the growth 
of ten successive forests !* (Wond. p. 674). 
The stems of Sigillarize vary in size from a few inches to 
five feet in diameter ; and in length from five to sixty feet ; 
they gradually taper from the base to the summit. A spe- 
Lien. 33. SIGILLARIZ; in Coal-shale. 
Fig. 1.—A specimen deprived of its carbonaceous bark, except in the 
interstices of the channels, and showing pits left by the 
external scars, 
2.—The markings of S. DEFRANcII. (Vég. Foss. Br.) 
cimen measured by M. Brongniart was forty feet long, one 
foot in diameter at the base, and but six inches at the top, 
where it divided into two equal branches. These stems 
may be readily distinguished from those of other trees with 
* “On the Coal Strata of Nova Scotia.” Amer. Journ. Oct. 1843; 
and Travels in America, vol. ii. p. 180. 
