177 



Jefferson county. Botany. E. T. Cox. Geol. Rep. 1870. 



Geology of. (See Borden Geol. Rep. 1874) ; do, R. Owen's Rep. 



1859-60. 

 Cystidians. (See Hubbard.) 



Jennings county, Geology of. E. T. Cox's Rep. 1875; do. R. Owen's 

 Rep. 1859-60. 



Johnson county, Geology of. J. Collett's Rep. 1883; do. R. Owen's 

 Rep. 1S59-60. 



Johnson, H. S. Experiments upon the transverse strength and elas- 

 ticity of building stone. E. T. Cox's Rep. 1881, pp. 47-54. 



Jordan, E. T. J. Report of Supervisor of Natural Gas. S. S. Gorby 

 (17th Ann. Rep.) 1891, pp. 326-364. 



Describes the extent (counties) of Indiana field ; its source (Trenten Rock) ; condi- 

 tions of production ; economic use ; gas plants throughout the field. 



Kankakee river. (See Campbell). 



Keokuk Fossils. (Beachler). 



Keyes, C. R. The carboniferous echinodermata of the Mississippi basin, 

 A. J. S. Ill, vol 38, p. 186. 



Knox county, Coals. E. T. Cox. Rep. 1870. 



Coals. Geology of. E. T. Cox Rep. 1873 ; Coals, J. Collett's 1883. 



Coals, Lesquereux. 



Lagrange County, Geology of. R. Owen. 1859-60. E. T. Cox Rep. 1873. 



Lake County, Geology of. R. Owen. 1859-60. 



Langsdale, G-eo. J. Map of Wyandotte Cave. Appendix to Rep. Ind. 

 Geol. Surv. 1859-60. 



Laporte County, Geology of. R. Owen, 1859 60 ; do E. T. Cox Rep. 1873. 



Lawrence County, Geology of. R. Owen, 1859-60; do E. T. Cox Rep. 

 1873. 



Lee, S. E. (See Gorby). Geology of Boone county. M. Thompson Rep. 

 1885 86. 



Lesley J. Report on the Cannelton district, Perry county, and topo- 

 graphic map. Ind. Geol. Survey 1859 60. Map not pubUshed. 



Lesquereux, Leo. Species of fossil marine plants from the carbonifer- 

 ous measures. E. T. Cox Rep. 1875. 



Principles of Paleozoic Botany (Pt. II). J. Collett's Rep. 1883, 



pp. 7-106. 



Introductory remarks on Geological phenomena bearing upon paleo-botany classifica- 

 tion of strata, fossilization ; collecting of fossil plants ; gives outline of the chief di- 

 visions of the vegetable kingdom and their distribution in geologic time ; history 



12 



