148 THE ROYAL SOCIETY OF CANADA 
member is found in the Kenebecasis valley, but its relation has not 
been studied. 
The Quaco Basin. . 
So far as southern New Brunswick is concerned there remains for 
consideration the small basin of Upper Devonian sediments at Quaco or 
St. Martinson the shore of the Bay of Fundy. 
This basin is on the southern side of the ridge we have spoken of 
as bounding the Kenebecasis—Petitcodiac basin on the south. In 
this part the pre-Devonian ridge is forked around a basin of Cambrian 
deposits, into which, aswell as to the northward, the pre-Cambrian 
ridge shed its boulders in Upper Devonian time. The southern branch 
of the bounding ridge consisted of Eo-Cambrian effusives, and was 
sufficiently prominent to shut off the supply of boulders from the pre- 
Cambrian ridge to the north, and so limestone and gneissic boulders are 
not a marked feature of the conglomerates in the Quaco basin, as they are 
in that to the north in the Kenebecasis valley. These boulders however 
did come south of the ridge as they are common in the conglomerate of 
the Upper Devonian outlier at Red Head near St. John. 
Not only in the source of its sediments, but also in the composition 
of its flora the Quaco basin differed from those we have been considering. 
While in the Kenebecasis basin we do not know of a Calamite or a 
Filicoid plant except Aneimites, such forms of vegetation are common 
in the Quaco basin, showing that the plants there grew under very 
different conditions from those in the valley to the north of the ridge. 
Some few plants were collected from the Quaco basin some 45 years 
ago by the writer and were determined by the late Sir J. W. Dawson 
these were :— 
Calamites Suckowi Brongt. 
C.—cannæformis Brongt. 
Neuropteris Loshii, Brongt. 
N.—auriculata Brongt. 
Cordaites borassifolia, Corda sp. 
Collections since made by the writer add to these :— 
Asterocalamites scrobiculatus, Schl. sp. 
Calamites Cistii Brongt. 
Lepidodendron ef. corrugatum Dn. 
Aneimites sp. 
Cardiocarpon cf. Crampii Hartt. 
Carpolithes, 3 sp. 
