Mcguiiia Scries of Nova Scotia. — W'ooihnan. 27 
tains many feet of finely cross-bedded (juartzytes, ^ivinj^' con- 
llietinm' evidence as to direction of current. 
h'ipplc iihV'Ics. — Tiicse are mentioned occasif)nally in the 
literature of the series. Hind ('72, p. 78) speakins? of a de- 
tailed section made at Mt. I'niacke in 1869 by A. Michel of 
the Geolo_qical Surve}- of Canada, alludes to a "slaty sandstone 
— ripple-marked dip 71 north." llailey ('98, p. 56) speaks of 
the rocks of Lockport island, Shell)urne count}-, as distinctly 
rijiple-marked . Certain strata en the west side of lialifax har- 
bor show the same phenomenon . 
Conglomerates . — Conglomerates have been reported from 
a number of localities, chiefly in the western half of the scries, 
and all in the lower formation . The eastern occurrences noted 
in literature are at Alt. Uniacke and West Waverley. At the 
former place Hind notes f '72, p. 78), in the cross-trenched 
section by A. JMichel, a stratum of "slatv sandstone holding a 
few slate pebbles." In the latter district, the same author men- 
tions ('69, p. 21) in the Tudor group of beds, "heavy-bedded 
gray whin, holding pebbles of blue-black slate." In the strata 
accompanying the Rose group of leads, he speaks of a "fine- 
grained whin, holding a few pebbles of the dark bluish-gray 
slate." In a careful survey of the district I did not find a'ly 
true fragmental pebbles, either in the strata mentioned cr in 
others. What I have found, however, is a number of lenses 
of slate in the quartzyte, some but a few inches in length ; and 
the blunt ends of others. All are flat, their shape ranging from 
that of rather flat ovoidal concretions to thickened discs. That 
they are not concretions is shown by their composition, and the 
disposition of the material. There are. however, certain hori- 
zons of concretionary quartzyte at West Waverley. There are 
a number of localities containing concretions which might be 
taken for pebbles at first sight by some ; as, for instance, Moose 
River mines and the west side of Halifax harbor, near York 
Redoubt. 
In the west, Bailey reports conglomerates from a number 
of localities. Near Port la Tour. Shelburne county ('98. p. 
59), is a true conglomerate, "mainly of quartzyte" (MS let- 
ter) . At the settlement of Pubnico Harbor, Yarmouth county, 
he speaks of "the incl<^sure in the beds of numerous well-de- 
