20746 Unconformable contact of Triassic on the Union, Salmon River, N. S. below Union. This is continuous with No. 16655 Near Truro, N. S. 1912 20739 K. Sydney, N. S. Coal measures on West side of Sydney Harbour, looking N. Taken from point where the "Main Seam" outcrops Chapel Point in distance. 1912 20747 Beds of the Union formation at Union, N. S. Overlain by drift. The contact marks an old valley floor of Salmon River, now dissected. Photo taken on a tributary to Salmon River at Union Station. 1912 16643 Unconformable contact of Parrsboro formation on the Riverdale-Union series, west of Parrsboro, N. S. 1912 16645 Riverdale Union beds on shore of West Bay, Parrsboro, N.S. (lapped as "Devonian" by Fletcher) 1912 16622 Pt. Edward Formation resting Windsor Limestone, with erosional contact and weathered zone in limestone. Windsor on right, Pt. Edward on left. Dip is gently toward the left. Bonlardine Island, opp.Boisdale Stn. George's Brook. 1912 16623 Pt. Edward formation resting on Windsor limestone, with zone of rotted limestone at contact, the rotting and solution marking an erosion sur- face. George's Brook, Bonlardine Island, opp. Boisdale Station, Cape Breton Isi. 1912 24406 Arisaig N. S. McAras' Brook. Basal bed of Sub-Carboniferous overlain by trap flow. The conglomerate is quite typical. Pillow structured and amygdaloidal structure of basal part of trap is shown. 24221 Gaspe contorted beds described by Logan from the Devonian. 24405 Arisaig, N.S. McAras Brook. Unconformity between Devonian and Sub- Carboniferous. In foreground, in creek, the Devonian dipping to the left; the camera is pointing along the line of strike. In background on right, the Sub-Carboniferous conglomerate overlain wit by trap; these dip away from the observer and the strike is in the plane of the picture. 24437 Percé, Quebec. Bonaventure Conglomerate, west of Mt. St. Ann on road to Corner of the Beach. 24419 Quebec City, Montmorenci Falls, Pre-Cambrian faulted against Utica and Lorraine. 24408 Arisaig, N. S. Lower part of Stonehouse formation showing lenses of light coloured limestone with abundant fossils, bedded in massive lime- stones which are relatively very poor in fossils. 24440 Riviere du Loup, Quebec. "Black shale and gray sandstone" overthrust onto "Black shales." Members probably Sillery formation. 16668 Ripple marked and mud-cracked surface of "Riverdale-Union" series, West Bay, Parrsboro, N.S. 1912 24222 Gaspe, Quebec, fault contact of the Devonian (on left) against Cambro- Ordovician, north of Grand Greve. According to Clarke this is a huge overthrust. Striae on fault plane are horizontal.