Lesley.] ^40 [jan. 19, 



the Great valley required that the same kind of survey should be made of 

 Franklin, Cumberland, Dauphin, Lebanon and Berks together. Each 

 county has been similarly mapped by R. H. Sanders. All will be pub- 

 lished at the same time. Mountain survey to be finished in 1883. 



Dauphin. Surveyed in 1879-'80 by R. H. Sanders. County map 

 exhibiting all exposed outcrops, mines and limits of formations, prepared. 

 Mines personally visited and ores sampled in 1882 by A. S. McCreath. 

 Report delayed for general revision in 1883, in connection with Lebanon 

 and Berks. For the coal, see Schuylkill county. 



Delaware. Surveyed in 1881 by C. E. Hall. See Report C 5 (1883), 

 to be published in the same volume with the report on Chester county, 

 C 4. Note. — This publication has been delayed by the impossibility of 

 preparing the illustrations for the report until after the report on Chester, 

 with its illustrations, had been provided. Delaware was formerly a part 

 of Chester, and its geology is dependent on that of Chester. The com- 

 bined report has been printed and its maps, &c., are mosth' printed. The 

 whole will be published this winter. 



Elk. Surveyed in 1877 and 1878 by C. A. Ashburner and A. W. 

 Sheafer. The maps and sections to accompany the report were printed in 

 1880. The publication of the report was stopped by the transfer of the 

 geologist to the Anthracite region. The important developments made in 

 the coal basins of this countj^ since 1878 make it desirable to revise this 

 survey. This will be done in 1883, after which the Report R 2 will be 

 published. 



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

 Crawford, Q 4 (1880). 



Fayette. The western part surveyed in 1876, the eastern part in 1877, 

 by J. J. Stevenson. See Report on Fayette and Westmoreland counties, 

 K 3 (1877), and Report on 'the Ligonier valley, K 3 (1878). Note.— 

 Report Jj (1876) gives the special survey of the Coke region. 



Forest. Surveyed in 1879 by C. A. Ashburner and A. W. Sheafer. 

 Tlie report on the coal areas and general geology will be published in 1883 

 in conjunction with the report (K 2) on Elk and Cameron counties. The 

 wells of Forest county are described in the Report on Warren county, I 

 4, by J. F. Carll, now just ready for binding, and which will be pub- 

 lished in February. 



Franklin. Surveyed in 1879 by R. H. Sanders. County map exhib- 

 iting all exposed outcrops and mines prepared. Mines revisited in 1880, 

 and ores sampled personally by A S. McCreath, and analyzed. See Re- 

 port M 3 (1881). Northern part surveyed in 1877 by J. H. Dewees. 



