350 = R. Lydekker—Oxford and Kimeridge Clay Sauropterygia. 
Dr. Bessels, again, remarks on the abundance of boulders on the 
shore of Smith’s Sound in lat. 81° 30’, which are manifestly derived 
from known localities on the Greenland coast much further southward, 
and adds, ‘‘ Drawing a conclusion from such observations, it becomes 
evident that the main line of the drift, indicating the direction of its 
motion, runs from south to north.” ? 
It may further be mentioned that Dr. R. Bell, of the Canadian 
Geological Survey, has found evidence of a northward or north-east- 
ward movement of glacier-ice in the northern part of Hudson Bay, 
with distinct indications of eastward glaciation in Hudson Strait.? 
For the Northern part of the Great Mackenzie Valley we are as yet 
without any very definite information, but Sir J. Richardson notes 
that Laurentian boulders are scattered westward over the nearly 
horizontal limestones of the district. 
Taken in conjunction with the facts for the more southern portion 
of the Continent, already pretty well known, the observations here 
outlined would appear to indicate a general movement of ice outward, 
in all directions, from the great Laurentian axis or plateau which 
extends from Labrador round the southern extremity of Hudson Bay 
to the Arctic Sea; while a second, smaller, though still very important 
region of dispersion—the Cordilleran glacier-mass—occupied the 
Rocky Mountain region on the west, with the northern and southern 
limits before approximately stated. 
I have refrained from entering into any detail at this time in 
respect to the glaciation of the northern part of the Cordillera belt, 
as it is probable that within the year we shall be more fully informed 
on the subject, as the result of observations to be expected from Mr. 
R. G. M‘Connell of this Survey. Mr. M‘Connell is now on the 
Mackenzie River, which, as well as the Porcupine branch of the 
Yukon, within the Arctic circle, it is intended that he shall examine 
during the summer. 
ITV.—NOoreES ON THE SAUROPTERYGIA OF THE OxForD AND KIMERIDGE 
CLAYS, MAINLY BASED ON THE CoLLeEcTION oF Mr. Lreps at Eyr- 
BURY. 
By R. Lyprxxer, B.A., F.G.S8., ete. 
PRESUME that most English students of Mesozoic Reptiles are 
acquainted, at least by report, with the magnificent collection 
of the remains of Sauropterygians and other Saurians from the 
Oxford Clay of Northamptonshire in the possession of Mr. A. N. 
Leeds, of Eyebury, near Peterborough. Those, however, who have 
not had the good fortune to see this unrivalled collection, can have 
no idea of its richness, or of the light it throws on the crganization 
and affinities of the Sauropterygians of the later Jurassic seas. Tull 
a few weeks ago I was among the number of those to whom this 
collection was known merely by report: but at the end of June I 
availed myself of Mr. Leeds’ courteous invitation to see and study his 
1 Nature, vol. ix. 
2 Annual Report Geol. Surv. Canada, 1885, p. 14 D.D.; and Report of Progress, 
1882-84, p. 86 D.D. 
