- 
114 Scientific Intelligence. 
Most of these fossils, and others previously described by the same 
authors, will be fully ee and more elaborately described in a fal 
Report of the Illinois Surv 
A Geological and Aobiaieand Survey of 100 ‘miles west of 
; by the American Bureau of Mines.* New York, 1866, 44 pp, 
8vo.—This Report embodies the results of a reconnoissance made during 
the past summer by Prof. Thos. Egleston, along the line of the first hun- 
dred miles of the Union Pacific Railroad, west of Omaha, Nebraska. 
The s as made under a commission from the railroad company, 
the chief object being pvobali) to throw some light upon the question of 
the probabilities of finding 2 — of coal in that region, within 
accessible distances beneath the sur 
When it is remembered that the publiatinis of previous explorers had 
made the general features of the geology of that part of the country so 
jo) 
Ss 
b>} * 
a 
& 
it must be conceded that Prof. Egleston has made up quite an interesting 
report upon the physical features of the district explored—its agricultu- 
ral capacities, climatology,t &c. He has also accurately described the 
Upper Carboniferous, Cretaceous, Drift, and alluvial formations previously 
known to exist there. From the Carboniferous beds he collected some 
fossils were ae by Mr. Meek,} and a list of thems is given on pages 
12 and 13 of t rt 
In regard to ooh Prof. Egleston thinks, from err is known respect 
ing the structure of the Coal formation in northern Missouri and westera 
Towa, that workable beds may possibly be struck at a depth of 550 feel 
low the surface of the Missouri at Omaha, and at near 600 feet below 
the same horizon at Bellevue. 
4, Notes on the Geology of Western S. America; by A. Rimonn, (from 
a letter to Prof. W. H. Brewer, dated Santiago, Chili, Oct. IL, 1866).— 
The oo are cae the discoveries which I have made on the west 
coast of South A 
(1. ) Jurassic fossils in 1 the metamorphic rocks about Lima; some of the 
pe strongly resemble those found in the belt of the same age in Cale 
(2.) At the — of Arica, lat. 18° 28’ S, on the coast of southern Pert 
Jurassic species, one of them identical with fossils found by Dr. Philippi 
near Chaco. abt of: the Desert of Atacama, lat. 25° 12’ 8. 
(3.) A sllenaees of fossil plants, probably of Triassic age, f 
coal-bearing formation of northern Chili, a region previously ee 
by geologists. Some of these species are similar to those I brought from — 
* Tt should be here noted that the American Bureau of Mines is a private asso — 
ciation, and not a government institution. 
ie The Smithsonian Institution's plication are credited for the meteorological 
are based. : 
upon which the 
Our attention has Mr. Meek to quite a ber f typographiog 
oe: in this list of fossils, for called by Me rigged teed hemes oe list 
responsi 
ag from a manuscri vipt Wiltten tg ham, nah aoe gaan aosich 2 i 
went through the press. 
eee 
