THE Int0ON ORES. 383 
A single analysis was also made for the survey. The sample came 
from the John Henry mine, of Austintown township : 
ANALYSIS OF MINERAL RipGE BLACKBAND.—JOHN Henry Mine. (Lord.) 
SIR Cape ea eee eee a cr ae Mocs ube uascaenuaclacsecr seiwos dieinusceesee cies sa 7.15 
TROT, SET WWOIOE IVC ( 295600009660666000 0000009000000 500000 080009 600005500000000 1GOOA00GNEH 31.26 
Iron pulphider coe de Metts doco g nacedscencseclcos ceonssordndecesess 2.52 
PATTI EVA te ene che os see one oto ees concen uaelnccecslsacesi ceestodascucT sess sesaclsesess 4.62 
EIT Oe eee ea needs ces toca dievus nnn cecalowdaielssisisas slenieislecsceslacielsasiss vise'escs 1.36 
MIBYETNGEND, 600000000000600 60006050 045000000 9500130 000000 860600200000000060600 80600 9600G00000 1.31 
OSAGIS Oi TMETNEENTEES) d6t509051060000400000000000000005 00000 0OGUIOCU SIO IBD OCHOSOBOREE 0.55 
TPIA@EOOOBG AC ICle 6400000000000000000N0600000000000500000600d68500000G0500 9000000000000 0.33 
Sulphur wesseteessecese-cce ee SS Ecard cetera ctaiciscecevubsGa seasons odes cease 1.44 
Volatile ANAKCOMMPUStIDTCUMTATbED secs. nese -cseciese ss cecerscsscensisceces ceorecees 47.56 
IN IGTETRIIHS) occa Bodoodnon dencod d6c bode BHOROCHEIcodor DOES OHOCBUDCOCERONO CECH acu EACNnneaE nA 1.85 
99.95 
IU Le AIH TROT Sadcccloneaqcba0 Sodedo BAGSRS HBOS HOOOSOCOCHONOUS Deon UOCHCCSOGC EE ERO HDOBBSEAG 24.40 
IWosphOonusis. cccccccece sees Watt ara dae oe Cae Sate ae cee oie haidaTels duloed Mean 0.145 
S Ulli nunyeraaree mee en ee wai cows vewitiee cca cecidanssonerlnssweci'sle ociadecelsccoltiecsceslecrrs 1.44 
A small amount of block ore has been mined in Mahoning county 
in years past, at the horizon of the Lower Mercer limestone. It has 
been obtained chiefly from Austintown, along the line of the Niles and 
New Lisbon Railroad. The block is thin, but the quality, as usual, is 
good. There is no present nor prospective importance to this seam in 
this portion of the State. 
The same remarks will apply to the kidney ore of the Sharon shale 
horizon. It has been mined at a number of points in the Mahoning 
Valley in former years, but little or none of it is now taken. 
The iron-making industry of the Mahoning Valley was established 
on the block coal that is found here, the character of which fits it for 
use in the furnace in the raw state. In the earlier days of the furnaces 
some account was made of the thin seams of native ore that are avail- 
able, and the seams already named were brought into use at that time, 
but both native coal and native ore have of late been supplanted by 
foreign rivals. Connelsville coke and Lake Superior ores are the almost 
entire dependence of the Mahoning Valley furnaces to-day. 
