3S0 Book Notices. 



tops of the liills at Cincinnati, and 430 feet above the Ohio river, are 

 seen in Jeiierson County, Indiana, at about the same level above the 

 stream." 



It is remarkable, that the State Geologist of Indiana, after having 

 the sdvantages afforded by this Journal and the Ohio Geological Survey, 

 should make such a grave mistake. It has been well known for several 

 years past, by every collector of fossils about Cincinnati, who paid 

 the least attention to elevations, that the strata dip in a westerly direc- 

 tion from Cincinnati more than ten feet per mile. The strata, at Cin- 

 cinnati, bearing Stdlipora antheloidea and Orthis sinuata 360 feet above 

 low water mark of the Ohio, are found at Lawrenceburg about 200 

 feet above the river. The strata, at the tops of the hills at Cincinnati 

 450 feet above the Ohio, pass below the bed of Laughery Creek, at the 

 distance of 40 miles west of Cincinnati. The rocks may be traced by 

 their lithological character and shown to have their dip westerly ; but 

 their fossil contents make an easy and unerring guide from hill to hill 

 and from valley to valley, and if there is any locality in the western 

 States, where the fossil contents of the rocks have been closely studied 

 and their variable characters at different elevations approximately as- 

 certained, it is in the vicinity in question — Such study and observation, 

 however, have not been, it would seem any part of the labor of the 

 Indiana Geologists — for we find, not only the errors in the foregoing 

 quotatiou, but a published list of the lower silurian fossils found at 

 Madison, Jefferson County, wherein are placed under the head of "Tri- 

 lobites" (the first subdivision) the name Phacops gallicepJiahis ; under 

 the head of "Orthis" (the 2nd subdivision) such names as Ambonychia 

 radlaia, Avicula insueta, MocUolopds modioliru, Streptelasmacorniculnm iunX 

 Cjjrtoceras lainellatum ; under the head of "Univalves" (the 3d subdi- 

 vision) such names as Orlhoceras junceum, Chetetes tuberculata,Chetetcs pon- 

 derosa, Chetetes ijonderosa var gracilis and Stenopora fibrosa; under the head 

 of "Parasitic corals" such names as Stenopora petropolitcona and Ortonia 

 minnta ; and under the head of "Enerinites," Heterocriniis s%ibc7'assi(S 

 and GraptoUtJnis mucronatus. It is quite true, that the State Geologist 

 did not make this catalogue, but somebody should be responsible for 

 its publication, and we presume the author of the paper read before the 

 Indianapolis meeting of the American Association, without much hesi- 

 tation, assumed the responsibility. It is a pity, however, that such 

 matter should find its way into any State Geological Report this side of 

 Texas, where the Chief Geologist has been informed, that the wooden 

 foundations of school houses petrify in twenty -five years and standing 

 trees are stopped in tlieir growth by petrification, but uever could find 

 time to visit the locality. 



Paleontology of Ohio Vol. 2 — We have received advance 

 sheets of part of this volume. Profs. Hall and Whitfield have made 

 three new genera for fossils found in the Cincinnati Group and fifteen 

 new species. The genus Schizocrania includes but one species which 

 has been called heretofoi'e Crania filosa or Trematis filosa. The genus 

 Cuneamija includes two new species; and the new genus Orthodesma'm- 

 eludes two new species and the two species heretofore called Orthonota 

 parallela and 0. contracta. The new species are as follows : Lingida 



