XIV 



127, 3, 4, 5. Erase 8 ; 42, 56, 1, 4, 5, 7 ; 9, 28, 30. (E. W. C.) 

 127, 8. For fig. 3, read fig. 8. Tlie consequence of this substitution has 

 been the placing here, under Cbonetes lineatus, the figure of 

 Hall's Strophomena rhoinboidalis (undulata.) 

 127,24. Read mesolobus. (E. W. C.) 



127, 25. Read millepunctatus. (E. W. C.) 



128, 1. Read mucronatus. (E. W. C.) 



128, 16. Read Chonetes, Productus, etc. (I. C. W.) 



Chonetes nova-scotia is a common and characteristic species of 

 TJ'p^jer Siluriaii rocks in Nova Scotia and New Brunswick. (G. 

 F. M.) 

 128, 18. Read scitulus. (E. W. C.) 

 128, 28. Read setigerus. (E. W. C.J 

 130, 22. Add, Geol. Sur. 111. Vol. 3, 1868, p. 567, fig. 2. 



130, 37. The figure due here has been inserted by mistake on p. 178, under 



its old name of Cypricardites recurvus.. (R. P. W. ) 



131, 12. Read Tuomey. 



132, 24. Read corallum. 



133, 5. This Cleidop hoi^ us is a typical ^vLGulites. (R. P. W. ) 

 133, 8. The doubt is strengthened by H. S. W. 



133, 12. Add, ''also in Perry county. Pa." (E. W. C.) 



133, next to bottom line. Insert after Lehigh Co. "one of the carnivorous 



Dinosauria," according to Cope, etc. 



134, 2. Add "teeth and" bones. (E. D. C.) 



135, 18. For America, read United States. — For Coccidentalis^ read C occi- 



dentalis. 



135, 20. A fine species described hy Whiteaves, occurs in the Lower Devo- 

 nian of Gaspe, Canada. (J. W. D.) 



135, 28. Read Grerablattina ; also, Etoblaltiaa, Mylacris, Necymylacris, 

 Arcbimylacris, Liithoinylacris, all genera of cockroaches found 

 in Pennsylvania. (S. H. S. ) 



135, 35. Read ohliquus. 



135, 40. Insert Cochleodus nobilis, N. and W. Illinois Vol. 2, p. 88, pi. VI, 



fig. 3-5, pi. VII ; the finest species of the genus. (J. S. N.) 



136, 1. Read Codonites. 



136, after 2, insert Coelacanthiis ele^ans, New. C. ornatus, New. C. ro- 



bustus, New. Pal. Ohio, Vol. I, pp. 339, 340, pi. 40. 

 136, 14, 15. H. S. Williams doubts its having been found in the Chemung. 



136, 24. For New York, read Chicago. 



137, 10. Read fossils. 



138, 10. This is a figure of a species of Ctemodus, (J. S. Newberry.) 



138, 17. See Cone-in-cone radiating from nodules of iron ore, and bones of 



Binichthys in Ohio ; described in Geol. Mag. London, 1885, p. 



543. (J. S. N.) 

 138, 30. Saff'ord's Geology of Tennessee explains this structure of coal, at 



numerous exposures studied by him, as produced by pressure, 



and analogous to slaty plication. 

 140, 26. Read G6. 

 140, 37, 38. ConocephalUes aurora^is a variety of Liostracus ouanagondia- 



nus. See my last paper. The fauna to which it belongs is Lower 



Cambrian and will not be received as anything else in Europe. 



M, C. should therefore be L. C. (G. F. M.) 



