— 139 — 
that while some fairly pure coal existed in every bed, it was so inters- 
tratified and ingrained with bituminous shale or slateas to render the 
separation by ordinary mining methods impossible. 
Samples of coal from all the points visitedin Santa Catharina, Rio 
Grande do Sul, and Parana, where exploilations had been made, were 
collected. 
These samples were taken entirely across the face of each 
seam, and were analyzed under the supervision of Prof. 13. H. Hite, 
Chemist of the West Virginia Geological Survey. Prof. Hite was 
aided in this work by Messrs. Frank IF. Grout, Leicester Patton, and 
Cc. 8. Forkum, the assistant chemists of the Geological Survey and @x- 
periment Station. 
All of the samples except those from the minesof the S. Jero- 
nymo Co. in Rio Grande do Sul, were taken from near the crop of the 
coal and hence were in a more or less weathered condition, thus in- 
creasing the percentage of ash impurities. 
The fallowing tables give the results of the analyses of Brazilian 
coal from samples collected in the field under the direct supervision 
of the Chief of the commission : 
