1883.] '^^J [Lesley. 



Cartoon. The coal basin from Mauch Chunk to Tamaqua has been 

 surveyed, and the slieets of maps and sections published to accompany 

 Mr. Ashburner's first Anthracite report, AA, wliich will go to press in a 

 few weelis. The survey of the Eastern ]\liddle coal field, commenced at 

 Hazleton in 1881, has been continued uninterruptedly, and the sheets of 

 the northern basins will be ready for press in 1883. The Beaver Meadow 

 basin sheets will then be prepared. Note. — The geology of the Lehigh 

 river below Mauch Chunk is described in the Report on Pike and Monroe 

 counties, G 6 (1882). The report on Carbon county requires further 

 field work before it can be written. 



Centre. Surveyed partially in 1880 and 1881 by F. Piatt and W. G. 

 Piatt. Survey stopped by the resignation of both assistants. Mines re- 

 visited and sampled for analysis in 1883 by A. S. McCreath. Survey to 

 be completed in 1883 for Report T 3. 



Chester. Surveyed in 1879 and 1880 by P. Frazer. Southern 

 townships re-surveyed in 1882 by C. E. Hall. See Report C 4 just 

 ready to issue from the press. Note. — The delay in publication was occa- 

 sioned by the resignation of Mr. Frazer and his residence in Europe. 



Clarion. Surveyed in 1879 by H. M. Chance. Report W (1880). 



Clearfield. Surveyed in 1874 by F. Piatt. See Report on the Clear- 

 field and JeflFerson District, H (1875). Note. — This report was based on 

 the work of an inexperienced partj^ at the commencement of the survey, 

 and before the recent important developments of the coal-fields of Clear- 

 field. A resurvey of the county has been repeatedly ordered by the 

 Board of Commissioners, and several attempts have been made to obey 

 the order ; but the occupations of the Geological Assistants in the various 

 districts of the State up to the winter of 1881 and 1883 prevented it. The 

 delay in .passing the last annual appropriation bill cost the survey the loss 

 of the geologists who were successively detailed to make this revision, 

 and there were no others to take their place. The revision will probably 

 be made in 1883, and a new report be published. 



Clinton. Surveyed in 1879 by H, M. Chance. See Report G 4 

 (1880). 



Columbia. Surveyed in 1883 by I. C. White. Report now in prepa- 

 ration, to be published in 1883. For the coal, see Schuylkill county. 



Crawford. Surveyed in 1879 by I. C. White. See Report on Erie 

 and Crawford, Q 4 (1881). 



Cumberland. Surveyed in 1878 by R. H. Sanders. County map ex- 

 hibiting all exposed outcrops and mines prepared. No report yet written. 

 All mines visited in 1880, and ores personally sampled and analyzed by 

 Mr. McCreath. See Report M 3 (1881). Note. — The peculiar character of 



FROC, AMER. PHILOS. SOC. XX. 113. 3P. PRINTED FEBRUARY 14, 1883. 



