692 KANSAS CITY REVIEW OF SCIENCE. 



numerous gullies, exposing the coal-seams and thus making opportunities for orig- 

 inal discoveries. 



In the Ohio Creek basin, the greatest development is in the South Park coal- 

 seam, opened under the superintendence of Mr. William Housely. The work is 

 laid out on the English or long-wall system, and certainly showed the best work 

 and most economical results of any of the work which I examined. In this 

 basin, another vein, the Richardson, has been opened on the Augusta and Owens 

 claims, as well as on many others. 



A section of these coal measures in the Crested Butte basin, where they are 

 principally worked, would approximate as follows : 



No. I. 300 feet from top of hill is i foot of coal. 



No. 2. 80 feet below this is 3 feet of coal. 



No. 3. 65 feet below this is 4 feet of coal. 



No. 4. 185 feet below this is 6 feet of coal. 



No. 5. 70 feet below this is ...... 10 feet of coal. 



No. 6. To this add in the Ohio Creek basin 



200 feet below is 7 feet of coal. 



Seam No. i is practically worthless. 



Seam No. 2 is that opened and known as the Howard F. Smith bank, up 

 Slate River. 



Seam No. 3 is opened on the Smith & Jefferson claim, on the Weaver prop- 

 erty, and one place between the anthracite coal near Irwin, on Anthracite range, 

 is in this horizon. 



Seam No. 4 is opened by the Colorado Coal and Iron Company, and in 

 Baxter's Gulch. In the Ohio Creek basin. No. 4 is represented by the Richard- 

 son, Augusta, Kubeler, and Owens openings. 



No. 5 is the coking coal vein now worked in the Crested Buttes basin, by 

 the Colorado Coal and Iron Company. 



No. 6 is only known in the Ohio Creek basin and in the South Park Com- 

 pany's openings. 



The eruption of the lava caused the Assuring of these Tertiary rocks, so that 

 now we have what has hitherto been unknown, namely, silver veins containing 

 rich ruby and native silver ores, passing through coal measures. Where these 

 veins break though, the coal-seams are liable to be broken and faulted; and in 

 immediate vicinity to the fissure-vein, the coal will contain more or less iron and 

 sulphur; at the same time, fragments of the coal will be found inclosed in the 

 gangue-rock of the crevice. 



Having some remarkable analysis of fixed carbon shown me from an opening 

 up Slate River, three miles beyond Crested Buttes, I went especially to examine 

 the openings on the property. This vein would be the No. 2 of the series. The 

 coal originally outcropped in a small gulch eroded into the side of the ridge rising 

 from Slate River, and opposite to the entrance to 0-Be-Joyful basin. 



The coal was followed in for nearly 200 feet, most of it being good merchant- 



