INHKX. 



cxli 



strong), 852. 



Mil~iua<1ratu. 1038, 1088. 

 .ut.rutfiwu*, 10W. 

 .utmtutilllratii-. 1028. 

 trl'tin-tni-, 1QSS. 

 tuba. HM4. 

 umblllcalux, 1028. 

 unlani;til:ttus, 102ft. 

 wa!iii<t.-.li. 1025. 



Euph-ii, M -56, 848, 876, 876, 916, 9tt t 24. 

 aperlun. 856. 

 rarbonarlus, 866. 

 m.li.-i!-.. 866. 

 IcTlt, 866. 



irulart*, 866, 



arlnatus, 866. 

 orliiK.vitims. S56. 

 urll, 866. 



K-.iry.-hillna. 658. 831, 032, 060, 06ft, 081, 004. 

 q tOU -'. 

 graaoaa, 069, 001. 

 .ula. 659,002. 

 manllobensls, 069,042. 

 l>ea, 069, 00.1. 

 r.-ticulau. aOO.868, 069, 042. 



incurva, J6O, 881. 

 itomarvinata, 069, 683. 

 subM-iuata. 063. 048, 069, 004. 

 u brad tata. 66 1 . 669, 062. 

 symiiH-trli-a. <Mi:j. 

 rentTOM, 609. 



Eurymya, ft!9, 485, 501. 504, 524, 828. 

 lau, r, : 



plana.512, 513. 

 subplana. 613. 

 Eurystoniltw, 811. 



undatus var. occldeoUH, 811, 812. 

 Kiithydwma. 487. 

 Byes of trllobltM, 897. 



Facial nutiir- <>f trilobltflk, 497. 



FlMurella, 815. 



Ftanrvlllde, 930, 4T. 



Foot of Gastropoda, 813. 



Form of shell, ID Cephalopoda, 83, la Gastropoda. 



815. 



Kr-ntal lobes, 697. 



Furrows, dorsal, 097; lateral, of glabella, 897. 

 -; "r... 17. 815, 1068, 1070,1073. 



var. subplana. 1O7'.. 



1077. 

 InflaU, 107.-, 



Tar. 1075. 



Ii7;. 



n..! - 1<7N 

 plaoulata. 107M. 



.iirh.-rti. 1O7. 1U77. 1U78. 



ila. 1073. 



sut.l.r-M. 1O7H. 

 subfii*lf..riiiiv 1077. inT- 

 sulcaU, I O7 ,i 

 Krebrlformls, 1077, 107a 

 vtntricota. ; 



Gastropoda, 475, 4s ;i|. 



Gnal anglf of trllobltes, 097; spine*, 097. 

 General rhurart.-rsof the Lower Silurian Cephalo- 



poda, 763. 

 Gnaaphes, 7 i < > 



ulrlchana, 71O*. 706, 71 IV 

 Glabella of trllol.tu*, 090; furrows of, 497. 



Glosnophora, 817. 

 Glyptocanlla. 480. 

 GlypUxlesms, 486. 

 Gomphooeras, 790. 



Gom Kiss, 798. 



Goniatltes Intumescens, 758. 

 Gonloeeras, 794, 700. 



annps, 794. 796, 812. 



Iambi, 793. 



occidental?, 795. 812. 

 GonloceratUl*, 794. 

 Gonlodon, 480. 

 Gonlophora, 485, 604. 

 Gonlostropha, 1013, 1012, 1014. 



bachellerl. Ktl.i 



chalmasa, 101:1. 

 GosMletla, 900. 

 Oosseleltla, 485. 

 Grammysla, 426, 487, 021. 

 Grammyslidc, 023, 487. 

 Groove, articulating, 697; pleura), 097. 

 Gymnosomata. KIN. 

 Gyrooeras, 81 1, 803. 



dupllcoslatuni, 811, 812. 

 Gyroma, 900, Ml. 

 Gyroneroa, 10W mm. io56, 1067. 



diipllratuin. 1OA5. 1060. 



llratuin, IO.V, 1048. 



perlcarlnatum, 1048. 



pulchellum, 1O54, 1046, 1056, 1068 

 ilcarlnatum, IO55. 



nalllella, 656, 632, 674. 



lablosa, 656. 



retlfera, 858. 



sculptllls, 050. 



semlnulum, A50. 

 Halllna nlcolletl, 616. 

 Haliotlda-, 930. 

 Hallotls. 844. 

 Harpes, 765, 758. 



consuetus, 750. 



etcanaba-, 768. 



inlnnesotensls, 7.~>~. 



vi-nulosus, 764*. 

 ll.i-|.iri.i. 7.'..".. 757. 



antlquata, 75R. 



inlnnr- .:i, 757. 



dttawt-n-ix. 757. 



prlrua, 7 



rutrcllum, 7B7.758*. 

 Helclon. 820, 827. 

 ' ' nopttls, 2fl, 830. 82 1 , KM. 



flsslr<*lata. - 



