432 Correspondence—Ur. G. E. Dibley. 
for prospecting, and furnish information regarding the geological 
conditions and mode of occurrence of minerals, that will form 
serviceable guides to the prospector; but only rarely can a geologist, 
engaged in his legitimate work, actually discover important bodies of 
economic minerals”. He rightly observes that ‘‘ Negative results 
are, in their way, quite as valuable as positive”, inasmuch as they 
discourage fruitless enterprise. Some important discoveries, however, 
have been made of coal-bearing strata in the Whitehorse district and 
in Alberta. Reports on the Yukon Territory are included, and it is 
remarked that the conditions in the Stewart River district appear 
to be favourable for placer mining. The results of borings on Prince 
Edward Island prove that Carboniferous rocks do not occur within 
2000 feet of the surface. 
Since the death of Dr. J. F. Whiteaves, the Paleontological work 
has been carried on by Mr. Lawrence M. Lambe, aided by Mr. W. J. 
Wilson. 
A separate Annual Report of the Division of Mineral Resources and 
Statistics on the Mineral Production of Canada is published by the 
Department of Mines; that for the two years 1907 and 1908, by 
Mr. John McLeish (issued 1910), includes particulars relating to 
metallic ores and non-metallic products. Among the latter are 
abrasive materials, asbestos, coal, peat, gypsum, mineral water, 
natural gas, petroleum, and salt. 
We have received copies of two separate Geological Survey memoirs— 
A Reconnaissance across the Mackenzie Mountains, by Mr. Joseph Keele, 
1910; and Geology of St. Bruno Mountain, Province of Quebec, by 
Mr. John A. Dresser, 1910. 
CORRESPONDENCE. 
MARSUPITE CHALK IN SURREY. 
Srr,—About two years ago I recorded the discovery of the 
Uintacrinus Chalk at Orpington, Kent. During the summers of the 
following years I traced this zone through Holwood Park to West 
Wickham, and also succeeded in finding the Marsupite zone in these 
last-named localities. Throughout the same period I also worked the 
roadside chalk at Farnborough Hill without any definite result. In 
June of this year I turned my attention to the chalk in the lane 
leading from Farnborough to High Elms, having a strong suspicion 
that this band of chalk would prove to be connected with Orpington 
and Holwood Park. My efforts were quickly rewarded, and in three 
visits I secured a characteristic fauna and numerous plates and arm- 
ossicles of DMarsupites from the upper end of the lane. I hope 
subsequently to publish the results of these and other workings — 
during the past few years. 
G. E. Drier. 
46 Bur@uitt Roan, 
Lower SypenHam, 8.E. 
