^^11 



ArcMtarbus rotundatus, Scudder. A spider found in a Mazon 

 creek nodule, 111. Geol. Sur. 111. Vol. 3, p. 568, f. 4. Goal meas- 

 ures, XIIT' 

 Archiulus xyloboides, Scudder. A myriopod of the Coal meas- 

 ures, XTIL 

 Arthrolycusa antiqua. Amer. Jour. S. Vol. 7, 1874, p. 219-223. 

 37, 13. Read Aristozoe. (J. H.) 

 40, 2. Read Evitts. 

 40, 10. Add See Appendix. 



40, 11. Artlirophycus iiiontalto. Compare with Munsteri Jiagellaris, 



Sternb. Flora d. Vorw, pi. 8, fig. 3 ; and Heer, Flora Foss. Helv. 

 plate 66, f. 4, 5. (R. D. L.) 



41, 4. To "normal order" add "that is, of chronological sequence, al- 



though they have been subjected to extraordinary physical dis- 

 locations." 



41, 10. See also Sternhergia. (E. W. C.) 



41, 16. Read hlatidens. 



43, 7. Read loiigicaudatus. 



44, 4. Erase "the Pocono sandstone strata, X, in the mountain gaps of," 



and erase " X to" on line 6. (J. J. S.) 

 44, 8. For "in Subconglomerate (Pocono, X) measures in the mountain 



gaps of" read "in the Coal Measures oV (J. J. S.) 

 44, 11. For X, read XIV. (J. J. S.) 



44, 13. For gaps, read Coal Measures ; and for X, read XIV. (J. J, S.) 



45, 12. Read Brongniart. 



45, 13. Erase ^^ Calamocladus^^ to ^^ Lyeopods.^'' (L. L. who adds that 

 the sentence is untrue.) 



45, 15. For seeds, read spores. (E. W. C.)— The figures represent spikes 



or fruiting parts of Aster ophyllites, to show their relation to those 

 of Equisetum ; but they may be left here. ( L. L.) 



46, 3. Read hippurites. 



48, 1. Calamostachys ovalls. Coal Flora, 717, pi. 89, f. 3, 4. (R. D. L.) 



48, 8, 9, 10. Erase these three lines. There is no such species ; it was a 



printer's error in setting up White's list. The fossil is AnnnJaria 



sphenoi>hylloides, Zenker, which see, on p. 28 above. (L L and 

 R. D. L.) 



48, 25. For lonja^Sfolla, read tuberculata. See Coal Flora, p. 723, pi. 89 



figs 1,2. (R. D. L.) ' '' 



49, 8. Insert in their places : 854-^7 (too wide) ; 854-21 (three) ; 854-37.— 



Also on line 18, 855-43— On line 21, 856 -16 (?)._0n line 24, 860-2a.— 

 Also, at the end 869-9, 878-3, 891-1. And, see Appendix for neiv 

 data. 

 49, 10. 854-19 must, I think, be a new species, as it is marked pustulata ; or 

 else must be in Chefnung strata. (H. S. W.) 



49, 31. For Acad, read Inst 



50, 18. Read Jervis. 



50, 32. jSee Appendix. 



51, 5 to 8. Erase as a Wrong identification. (R. P. W.) It is Athyris spi- 

 riferoldes. (E. W. C.) 



1 to 3. The reference in KK, 291, is to Athyris subquadrata ; for A. 

 subtilita is an upper carboniferous species. (J. J. S.) 





