406 The American Geologist. December, 1894 
Mr. E. H. Lonsdale, recently of the Iowa Geological Sur- 
vey, has resigned to accept a position on the Missouri survey. 
Mr. C. I'- Waxcott, director of the U. S. Geological Survey, 
has recently made a western tour to inspect its work. 
Prof. S. F. Emmons is to have general charge of the work of 
the l\ S. Geol. Survey in the Rocky mountains region. 
Prof. G. F. Becker, who has made a reconnaissance of the 
southern Appalachian gold-fields during the past summer, 
will specially examine, with Mr. H. B. C. Nitze of the North 
Carolina Geological Survey, the principal mines in the central 
southern part of that state. 
William Tocley, F. K. S., long engaged on the Geological 
Survey of England, died Sept. 30th. 
A species oe Oldhamia. closely related to O. antiqua of the 
Cambrian rocks in Ireland, has been collected by T.Nelson 
Dale at several localities in a belt of reddish shales west of 
the Renssalaer plateau, near Troy, N. Y. It is described by 
('. I). Waleott under the name Oldhamia [Murchisonites) Oc- 
cidents, in the Proc. Nat. Museum, vol. xvn, pp. 313-315, 1894; 
and the formation is regarded as of Upper Cambrian or 
Lower Ordovician age. 
The geology oe Denver and its vicinity is well summarized 
in a popular address, of 36 pages, by George L. Cannon, Jr., 
as the retiring president of the Colorado Scientific Society. 
A very remarkable epoch of erosion is shown to have marked 
the transition from the Tertiary to the Quaternary era, re- 
moving 1,000 to 1,500 feet of horizontal strata from the site 
of the city of Denver, followed by an epoch of deposition of 
river drift and loess. 
The New Science Review is a recently launched quarterly 
devoted to the discussion of scientific theories and discover- 
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Around the World fills a nook in monthly journalism which 
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that from the first page to the last it is a gallery of portraits 
of nature all of which deserve to be bound together and pre- 
served. 
