NATURAL HISTORY. 
The student who will carefully follow the line of 
Junction of this formation, with the granite, from 
the Hightor and Yarner Downs, in the parishes of 
ilsington and Bovey Tracey, on by their irregular 
course to the Bottor rocks, in the parish of Hennock, 
and from thence to Canonteign, and will examine 
some of the ravines in the latter parishes, will find 
much that is of the highest geological interest to 
reward his pains, and may at the same time collect 
an extensiveand welldefined series of rock specimens 
such as granite of various textures,—sileceous, 
micaceous, and arguillaceous schists—syenite and 
all the various formations in which hornblende 
prevails—(a considerable part of Henneock and 
Bovey Tracey is on a rock of this description) — 
erarnet rock—porphyry—(very fine green porphyry 
occurs near Crockern bridge) and greywacke. 
Lodes of Copper, Tin, Iron, Manganese, and Lead 
eccur in this formation, In no part of it have we 
ever met with any fossil remains. 
3.—TRANSITION LIME. 
This formation occupies a considerable proportion 
of the south-eastern part of the district, its general 
direction being conformable with the former ones— 
ia some instances, it is immediately mcumbent on 
