360 TRIASSIC (?) ROCKS OF DIGBY BASIN.—BAILEY. 
perpendicularly, making a very marked appearance in the 
face of the cliff, and having much of the aspect of adyke. It 
is, however, wholly made up of detached blocks,—some of 
them two or three feet long,—of the same nature, and some of 
them exhibiting the prismatic shape of the trap columns near 
by. In some instances, however, they are rounded. No trace 
of the ordinary red sandstones or of any beds resembling those 
about Digby is to be seen. 
It seems hardly possible that the material of this agglomerate 
should have received its present position except through intro- 
duction from above into a previously opened fissure ; but whether 
introduced contemporaneously with the lava flows and ash 
accumulations represented in the neighboring dolerites and 
amygdaloids, @. é., in the Trias-Jura epoch, or later and possibly 
in the Quaternary, is a question which the writer is at present 
unable to answer. 
Reviewing the entire subject, it is evident that there are still 
some unsolved problems in connection with the supposed Mesozoie 
rocks of the Bay of Fundy trough (including in the latter the 
Annapolis Basin); and if the observations here given prove the 
means of originating any further enquiries in this direction, the 
purpose of this paper will have been served. 
