vu 



Trenton of Tennessee. lie. *' Mistake made by change of name in 15th 

 Report State Cab. N. Y." (Whitfield.) 



639, 10. Phtlianocoris. * * * A hemipterous insect, etc.. Vol. 22. 



640, 1. The two upper figures only are P. typus. The threee martied p. 

 507 (middle and left hand) are Diplograptus whitjieldi. (Whitfield.). 



644, 2. Read Vol. 6. — 16. Read marginatum, and erase Europe. — 19 

 Read P. tessellatiis. 

 647,27. Read plate 111. 



649, 12. Read ramosissima. — 22. Read Whitfield. 



650, 1. See Piloceras amplum, Dawson. Canadian Naturalist. 

 652, 1. Read Plancticlinus, and transfer to p. 651. 



654, 24. Many forms described as plants are now undoubtingly accepted 

 as inorganic (rain rills, burrows, etc.). Such described ^^fucoids," for ex- 

 ample, as Aristophycus, Miller and Dyer, have been repudiated by their 

 authors. (J. F. James.) 



655, Figure 40 rei^resents Psilophy ton princeps, Dawson. See 16th Report 

 N. Y. State Cab. p. Ill (Whitfield.) — Fig. 38 m Lepidodendron gaspianum, 

 Dawson. (Whitfield; also Dawson.) — Fig. 46 is Ptilophyton vanuxemi^ 

 Dawson. (Dawson.) It is PlumuUna plumularia, Hall. (Whitfield.) 

 Plumulina plumosa. (E. W. C.) 



656, 21. Read Lingula ligea. (E. W. C.) —23. Read p. 191. 



657, Fig. 58 is an Archceopteris (Dawson.) It is Cyclopteris jacksoni. 

 (Whitfield. ) — Fig. 56 is the stipe of a fern. (Dawson). It is Bhachiopteris 

 punctata, Daws. (Whitfield.) — Fig. 55 is Lepidodendron gaspianum, 

 "Daws. (Dawson; Whitfield.) — Fig. 57 is Bachiopteris pinnata, Daws. 

 (Whitfield.) 



659, 10. Figure is /iS^irop 7*2/ ^on erassum, Hall. (Whitfield.) ^ee Taonu- 

 rus. (Collett.) — 10, 11. For '*a fern * * * measures," read ^^ Fu- 

 coides cauda-galliy Geo. Pa. 1888, plate 21, f. 1, p. 826, from the U. Held, 

 lime shale near Delaware Water Gap, Pa. — VI. 



660,16. ReadRhacophyllum. — 33. ^e.a& striatus. — 35. l^ead-filiculme. 



661, 8. 'RQ2i& pinnceformis. 



661, 10. Read '•^pluckeneti, var. constricta, F. and W." — 15. Read meri- 

 anopteroides. — 24. Read speciosissimum.''^ — 27. Read bica7^pus. — 2S. 

 Read Guilielmus. (Lacoe.) 



663, Original figure of P. antiqua is in Dawson's Acadian Geology. 

 (Scudder. ) Erase IX? & IX. (Matthew. ) 



664, 29. Read dumosum, a figure of which is given on page 682. — 32. 

 Erase 5-75, &c. (E. W. i;.) 



665, 23. R^ad Platyceras. — 26. Read mitelliforme. 



666, 3. Read Keyes. 

 669, 33. Read cymbium. 



671, 5. Read Oriskany sandstone of Cumberland, Md. (Whitfield.) — 7. 

 Read 95-2. 



675,9. 'Rea&pentalohatum. (E. W. C.) 



684, 27. Erase from '< 200-1" to " Co." These specs, are Platystoma. (E. 

 W. C.) 



686,16. Read spinose. — 20. 'Read lodiensis. (E. W. C.) 



688, 14. Read lodiensis. 



691, 14. Read Dr. Newberry. — 20. Read dublum. — 26. Read tumidum, 



695, 30 and 34. Read niagarense. 



696, 26. Add, Claypole's spec. 200-4 from Mapleton, Hunt. Co., Pa. (E. 

 W. C.) 



