134 Reports and Proceedings— 
a molar pattern which is not observed in any Marsupial, but is seen 
in Chrysochloris among the Insectivora. Since, however, it is 
common for Marsupials to mimic the dentition of other orders, this 
relationship must be held with some reserve.” A 1S. Vee 
IJ.—DepartmMent or Mines, New Sovran Wates. 
(1.) Aynuat Report oF tHe Department or Mines, New Sour 
WALES, FoR YEAR 1886. Sypney, 1887. 
(2.) GroLoGy oF THE VEGETABLE CREEK Trn-Minine Freitp, NEw 
Eneiand District, New Sourn Waters. By T. W. Epcrworra 
Davin, B.A., F.G.8. Department of Mines, Sydney, 1887. 
HE annual report for the most part consists of details of the 
nature and amount of work carried on in the various mines of 
gold, silver, tin, copper, coal, and other minerals in different parts of 
the country, as well as of the character and prospects of the newly 
discovered mineral districts by the geological surveyors, under the 
direction of Mr. C. 8. Wilkinson, F.G.S., the head of the Survey. Of 
more than local interest is a report on New South Wales Diamonds, 
by Thos. Davies, F.G.S., and Robt. Etheridge, jun., in which, amongst 
other things, they point out that the diamonds from this country, in 
their physical characters are more nearly allied to those of Brazil 
than of any other country; that they are of greater hardness, which 
is a disadvantage as regards the cost of cutting, but on the other 
hand they are extra brilliant. The diamonds occur in drift which 
may be loose and coarse, and in places passes into a compact con- 
glomerate. This drift is due to fluviatile action at different geolo- 
gical periods. Thus there is no resemblance to the diamantiferous 
rock of the celebrated Kimberley mines of South Africa. Mention 
is made of the discovery of specimens of Mastodonsaurus in the 
Hawkesbury series at Cockatoo Island, and of a new species of 
univalve shell which is described by Mr. Robert Etheridge as 
Tremanotus maident, thus belonging to a genus hitherto only known 
from the Silurian rocks of North America and Europe. The form 
described is from the Hawkesbury sandstone, but there isa possibility 
that it may have been contained in a boulder of an older date. 
The volume on the Vegetable-Creek Tin-mining Fields, by Mr. 
Edgeworth David, gives a detailed account of the geological structure 
of the district accompanied by maps and sections. The tin-stone is 
met with principally in gravels, some of which are of Post-Tertiary 
age, whilst others are beneath massive beds of basalt and other 
eruptive rocks. The source of the tin-stone has been traced to veins 
in granite which occurs plentifully in the district. G. J. H. 
REPORTS AND PROCHHDINGS. 
We 
GroLocicaL Society or Lonpon. 
I.—January 25, 1888.—Prof. J. W. Judd, F.R.S., President, in 
the Chair.—The following communications were read :— 
1. “On Ailurus anglicus, a new Carnivore from the Red Crag.” 
By Prof. W. Boyd Dawkins, M.A., F.R.S., F.G.S8. 
The specimen described is a small fragment of the right lower 
