Mineralogy and Geology. 121 
assist the passenger in making the toilsome ascent. 
We engaged a miner to show us down the largest shaft, which meas- 
ured on the average only 44 feet high by 5 wide; it is cased with willow 
Sticks in a secure manner, and the roof is particularly well guarded. The 
bottom is lined with the same to form a lad er, up and down which the 
Miners travel in their daily labor. This shaft is about 150 feet deep, and 
the ladder down to the digging is perhaps 600 feet long. The coal is 
Ww 
7 as his day’s work. The sides of this shaft showed the width of the veins 
of coal, but the top and bottom were not dug out; at the bottom the 
Shaft divided and led toward two deposits, but neither passage had been 
dug out. The whole was very dry, owing probably to its elevation up 
the hill; but some shafts had been abandoned from wet and bad air, and 
their mouths closed. The laborers are hired out by contractors, who sell 
to see the unw ; n road, bring- 
me their loads of coal. It is delivered in Peking at about three piculs 
kind, enabling scientific men to compare the numerou 
and hard coal in this part of China with the European coal-measures.— 
China Mail, Nov, 26, 1863. 
y+ On the probable identity of the Oneida Conglomerate of Central New 
Ye ork with the Medina formation.—E. Jewett, Curator of the State Col- 
fous at Albany, N. Y., in a letter to one of the editors, states that he 
has found the Fucoides (Arthrophycus) Harlant, a characteristic Medina 
fossil, in the Oneida Conglomerate, near Utica, Oneida Co., N -Y., and con- 
8raphical reasons, that the Oneida conglomerate is im fact only a northern 
Portion of the Medina sandstone. The occurrence of this or a related 
_ “teoid is stated by Dana in his Manual of Geology (p. 230), a specimen 
AM. Jour. Sct—Szconp Serims, VoL. XXXVIII, No. 112—Juty, 1964. 
16 
