62 Scientific Intelligence. 
were of the Lower Silurian and Carboniferous formations. The 
Carboniferous at the well had a thickness of 873 feet—s0 of it 
Coal-measures, 670 feet Subcarboniferous, 93 feet Choutean group 
(referred by most authors to the Subcarboniferous, and cailed in 
Towa and Illinois the Kinderhook group). The Lower Silurian, 
beginning above, consists of Trenton 421 feet; first magnesian 
limestone 148 feet ; sandstone (called saccharoidal — used 
in glass-making) 153 feet; second limestone 517 feet; second 
sandstone 82 feet; third limestone 838 feet ; third soniel 98 
feet; fourth limestone 384 feet ; eae sandstone, called Potsdam, 
299°5 feet. Salt water was obtain d (in p e of fresh) at 1,220 
feet, and a sulphur water at 2,140 feet. es 2,956 6 the water in the 
sand. -pump —— 3 per cent of salt; at 2 957 feet, 44 per cent; 
at 3,293 feet, 2 per cent; at 3,367 feet, less than 2 per cent; at 
3, 384 feet, = ‘per cent ; and below 3 BAD feet, 7 to 8 per cent. 
With a Fahrenheit self. ne thermometer, the temperature 
obtained at depths from 3,127 to 3,837 varied from 107° to 104$°, 
being 105° at the lowest point reached. 
In an artesian well at Belcher’s sugar refinery, St. Louis, salt 
water was obtained at 610 and 849 feet below the surface at the 
place, or 790 and 1,029 feet below the level of the surface at the 
asylum well. 
6. Return of Professor Mursh’s Expedition.—Professor i 
returned to New Haven, Dec. 12th, after an absence of t 
months in the West. The object of the “. esent expedition was af 
ations were very senniectak ie pa cr cold 
weather and the continued hostility of the Sioux Indians. The 
latter refused to allow the expedition to cross White River, but 4 
reluctant consent was at last obtained. They afterward stopped 
the pa rty on the way to the Bad Lands, attempted a night attack 
eir camp, and otherwise molested ‘them, ut the accompany-_ 
ing escort of United States troops proved sufficient for protection. 
although quite limited in extent, proved to be rich beyond expect® 
tion. Nearly two tons of fossil bones were collected, most of them — 
rare sp d many unknown to science. ng the most 
interesting remains found were several species of gigantic Bronto- 
heride, nearly as large as Elephan At one point these bones 
were heaped together in such numbers as to indicate that the am — 
mals lived in herds, and had been washed into this ancient lake by — 
afreshet. Successful explorations were made, also, in the Pliocene — 
strata of the same region. All the gS secured go to Yale — 
" 
year. Prof. Zirkex, of Leipsic, was in the country during “the : 
month of September, at Mr. King’s sie et to examine roe 
