266 The American Geologist. April, 1892 
This valuable paper is illustrated by numerous views of the scenery of 
Cinder Cone and its adjacent tracts of lava. 
The relations of the Traps of the Newark system in the New Jersey region. 
By Netson Horatio Darron. pp 82; with a folded map, 5 other 
plates, and 49 figures in the text. (Bulletin No. 67, U.S. Geol. Survey, 
1890. Price, 10 cents.) The traps of the Triassic area in New Jersey 
are found to belong to two classes. The most important class comprises 
extrusive sheets or overflows, three of which constitute the Watchung cr 
Orange mountains, curved in their outcrops on account of flexure of the 
enclosing strata. In the second class, comprising intrusive sheets and 
dikes, the Palisades, forming the west shore of the Hudson, are the 
most conspicuous example. Mr. Darton concludes that the eruptions 
producing the Watchung trap sheets were doubtless similar to those of 
some of the great lava-flows west of the Rocky mountains, which during 
the later Tertiary and Pleistocene periods appear to have welled forth 
from long fissures, without the formation of craters or the ejection of 
fragmental materials. 
Earthquakes in California in 1889. By J. E, KEELER. pp.25. (Bulle- 
tin No. 68, U. 8. Geol. Survey, 1890. Price, 5 cents.) This paper is a 
continuation of the notes of earthquakes in California to the end of the 
year 1888, previously published by Prof. E.S. Holden. It describes all 
the shocks felt at the Lick Observatory on Mt. Hamilton, with others oc- 
curing elsewhere, so far as known, in the state. Forty-one days during 
the year 1889 had shocks which are here recorded. 
A classed and annotated Bibliography of Fossil Insects, pp. 101 —Index 
to the known Fossil Insects of the World, including Myriapods and Avrach- 
nids. pp. 744. By SamuEL HusBarD ScuppER. (Bulletins 69 and 71, U. 
S. Geol. Survey. Prices, 15 and 50 cents.) The writings of more than 
five hundred authors are cited in the first of these papers, with concise 
descriptive notes. In the second, the bibliography of each known fossil 
species is cited in chronologic order. The Paleozoic, Mesozoic, and 
Cenozoic eras are taken up successively, and in each of these time divi- 
sions the principal classes are separately presented; but under each 
class the generic names, and under them the specific names, are ar- 
ranged alphabetically. 
On the Bear River Formation, a Series of Strata hitherto known as the 
Bear River Laramie. By Cuartes A. Wairr,—and The Stratigraphic 
Position of the Bear River Formation. By T. W. Sranron. (Am. Jour. 
Sez., Vol. xuut, Feb., 1892, pp. 91-115.) 
These two interesting papers add another link to the chain of our 
knowledge of the age of the non-marine formations which were form- 
erly grouped under the one name ‘Laramie.” 
Dr. White, in his paper of seven pages, gives a short historical sketch 
of the work that has been done on the Bear River formation, from its 
discovery in southwestern Wyoming, by H. Engelman in 1859, who, with. 
