22 BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 146. 
7 Aims (Walton I.). Notes on the construction of the East River gas 
tunnel [New York]. 
Sci. Am. Suppl., vol. xl, pp. 16332-16335. 
Gives a profile view of the tunnel and notes on the rocks penetrated. 
8 Aldrich (T. H.). Description of two new Eocene Solaridse from 
Alabama. 
Nautilus, vol. ix, pp. 1-2, pi. 1. 
Describes Solarium elahoratum Conrad vir bimixta and S. planiforme 
n. sp. 
9 Ami (Henry M.). Fossil insects from the Leda clays of Ottawa 
and vicinity [Ontario]. 
Ottawa Nat., vol. ix, pp. 190-191. 
Names the insects found in the Pleistocene beds of this locality and 
quotes description of Phyrganea ejecta by S. H. Scudder. 
10 Notes on a collection of Silurian fossils from Gape George, 
Antigouish County, Nova Scotia, with descriptions of four 
new species. 
Nova Scotian Inst, of Sci., Proc. and Trans., vol. viii, pp. 411-415. 
Describes Serpulites longissimus n. var., Tentaculites canadensis n. 
sp., Discina nova-scotica n. sp., D. fletcheri n. sp., and D. orientalis n. sp., 
with notes on other fossils. 
11 Andersen (Carl). The Cooney mining district, Socorro County, 
New Mexico. 
Eng. and Mg. Jour., vol. lix, pp. 343-344, with map. 
Describes the ore bodies in this district carrying gold and silver. 
12 Anderson (F. M.). Some Cretaceous beds of Rogue River Valley, 
Oregon. 
Jour, of Geol., vol. iii, pp. 455-468. 
Describes the pre-Cretaceous rocks and the stratigraphy and structure 
of the Cretaceous series of a portion of southern Oregon. Gives lists of 
fossils collected and five cross sections. 
13 Ashley (George H.). Studies in the Neocene of California. 
Jour, of Geol., vol. iii, pp. 434-454. 
Describes the general geology and stratigraphy of the Tertiary rocks 
of the Santa Cruz Mountains and the Pleistocene history of San Fran- 
cisco Peninsula, as shown by its topography and deposits. Discusses 
the evidences of the age of the Coast ranges and the recent history of 
Santa Catalina Island. Includes a sketch map and cross sections of the 
region. 
14 The Neocene stratigraphy of the Santa Cruz Mountains of 
California. 
Cal. Acad. Sci., Proc, vol. v, pp. 273-367, pis. xxii-xxv. 
Describes the topographic features of the mountains and reviews the 
literature regarding them. Gives a general geologic description of the 
region, including a columnar section, and the lithologic characters and 
distribution of the various deposits which form the range. Discusses 
the evidences as to the geologic age of these beds and gives lists of 
fossils that have been collected. 
