37© TRANS. ST, LOUIS ACAD. SCIENCE. 



Greene Counties. But a thorough investigation of these districts 

 with special reference to iron ores has not yet been made ; no 

 reliable judgment can therefore be formed regarding their indus- 

 trial importance. The name of Southern Iron Ore Region of 

 Missouri has been given to these districts because some iron ore 

 deposits are known to exist there, and because the similarity of 

 the geological formation with that of other iron districts gives 

 hope that more of such deposits may yet be found, and, finally, 

 because these deposits are too remote from all the other districts 

 to be grouped with any of them. 



V. THE MANUFACTURING DISTRICTS OF ST. LOUIS AND GRAND 



TOWER. 



St. Louis, including Sovith St. Louis (formerly called Caronde- 

 let) and East St. Louis (situated on the eastern bank of the Mis- 

 sissippi in Illinois), has become a very important centre for iron 

 manufacture within the last eight or ten years, although neither 

 iron ore nor coal fit for iron-smelting is found anywhere in this 

 vicinity. This has been mainly effected through the facilities of 

 communication with the Missouri ore deposits on the one side, 

 and with the excellent industrial coal of Illinois on the other. The 

 fact that these facilities are increasing every year opens promis- 

 ing prospects for a yet grander development of the St. Louis iron 

 industry in the future. Since the completion of the great bridge 

 across the Mississippi, St. Louis and East St. Louis may be con- 

 sidered as one large industrial complex. This complex is at 

 present connected with the South-eastern ore region through 

 the Iron Mountain Railroad, with the Central Missouri ore 

 region through the Atlantic and Pacific Railroad, and with the 

 Western ore region through the Osage and Missouri Rivers. It 

 is also connected in Illinois with the bituminous coal of Belleville 

 by the St. Louis and Cairo Short-line, and with the Big Muddy 

 field, with its excellent industrial coal, by three routes, namely, 

 the St. Louis and Cairo Short-line, the Cairo and St. Louis nar- 

 row-guage road, and by the Mississippi River in conjunction with 

 the Grand Tower and Carbondale Railroad. 



Excellent coke can be and is obtained at fair rates from beyond 

 Pittsburg, Pa., partly by the several railroad routes, but mainly 

 by river, the boats being tugged down the Ohio to its mouth and 

 then up the Mississippi. Limestone suitable for fluxing iron ores 



