200 The American Geologist. Sc'i>tcmbor, 1895 
After many years of service on the Canadian Geological Survey, Dr. 
Dawson is appointed to its directorship, which Dr. Selwyn hiys down at 
the end of a successful administration through twenty-five years. We 
extend to the new director the wish that the work carried on and super- 
intended by Logan and Selwyn may V^e as long and as prosperously con- 
tinued under his direction. w. u. 
Doen tlie Delaicave Water Gap consist of Two Hirer Gorges'/* By Em- 
ma Walter. (Pages 8, with map, Proc. Philadelphia Acad, of Natural 
Sciences, March 1.3, 1895.) The topographic features of the Water Gap, 
the exceptional depth of the river, 35 to 50 feet, in the gorge, while it is 
shallow with rapids above and below, and the hights of the valley ter- 
races of gravel and sand, are regarded as evidences that the greater part 
of this gap, passing through the Kittatinny or Blue Mountain range, 
was cut in preglacial times by a river flowing thei-e northwestward, op- 
posite to the present course of the river, which since the Ice age is 
thought to have cut the lowest 150 feet of the southeastern part of the 
gorge. The depth of the river, however, seems no more than may be at- 
tributed to the force of its floods in this constricted and cvu'ved part of 
its channel. w, u. 
En rcsa till norra Ishafref soiumaren 1S92. By Axel Hamberg. 
(Pages 25-61, with map, and 14 figvires in the text, views engraved from 
photographs; Ymer, 1894.) In the northeastwardly facing frontal cliffs 
of Loven's glacier, near the shore of King's bay, Spitzbergen, much en- 
glacial drift was observed. The ice is distinctly stratified, and the in- 
closed drift occurs chiefly in definite layers, separated by others of near- 
ly clear ice. Where a boulder is imbedded, the ice lamin* curve up- 
ward over it and downward under it. Sigmoid folds and overthrust 
faults have been produced by the differential motion of the ice strata. 
Loven's glacier thus presents very conspicuously the same conditions 
which Chamberlin has described from his studies, two years later, in 
northern Greenland. w. v. 
The Protolenus Fauna. By G. F. Maithew. (Trans. N. Y. Acad. 
Sci., vol. 14, pp. 101-15.3, pis. i-ix, 1895.) Protolenus, Matthew, is a 
trilobite genus closely allied to Olenellus. The Protolenus-fauna is the 
oldest known Cambrian fauna in the New Brunswick section. It lies 
immediately beneath the Paradoxides beds, and is otherwise denomi- 
nated by the author as the fauna of Band 6 of division 1, or the Acadian 
division of the St. John group. The " Olenellus-zone " which in New 
Brunswick, and generally throvighout the Atlantic region of North 
America, in Scandinavia, etc., lies beneath the Paradoxides horizon, 
has not been found in New Brunswick. It would seem that the fauna 
with Protolenus occupies the stratigraphical position of the Olenellus- 
zone. 
The author had already described certain speoies of this fauna, but 
the number has been much enlarged and their distribution established 
with greater precision, by the diligent collecting of Messrs. W. D. Mat- 
