INDEX 



147 



Dalmanella meeki *50 



Dalmanites vigilans *71 



Dating the past 11 



Dawsonoceras annulatum *69 



Dekayia aspera 47 



Delthyris fimbriata 82 



Deltopecten *1 14 



Derbyia crassa *101, 111 



Devonian fossils 74 



Devonian history 19 



Devonian rocks in Ohio 20 



Diamesopora *61 



Diatoms 29 



Dictyoclostus bovis *100 



Dictyoclostus semireticulatus *112 



Dictyonema leroyense 94 



Dinorthis carleyi 50 



Dinorthis subquadrata 50 



Dinosaurs 42 



Discoceras marshi 70 



Discus cronkhitei *132 



Dolatocrinus *94 



Dolerorthis flabellites *65 



E 



Echinoconchus punctatus *1 1 1 



Echnoderma, general 40 



Silurian 71 



Echinoidea, general 40 



Pennsylvanian 119 



Edmondia *115, 120 



Edrioasteroidea, general 40 



Ordovician , . - 54 



Elasmonema bellatuium *87 



Elliptio *124 



Elytha fimbriata *82 



Emmonsia 77 



Encrinurus ornatus #71 



Endoceras proteiforme 52, *53 



Enterolasma caliculum *60 



Entolium *114 



Environment, types • . . 9 



Eospirifer radiatus *66 



Equipment, collecting 2 



Eridophyllum *77 



Eridotrypa echinata *61 



Escharopora falciformis 47 



Eucalyptocinus 73 



Eucalyptocrinites crassus *73 



Euchondria neglecta * 114 



Euconulus fulvus *133 



Euomphalus *88 



Euomphalus catilloides #117 



Eupachycrinus mooresi *119 



Euphemites carbonarius 117 



Euphe mites nautiloidea ....» #103 



Euphemites nodocariivatus #117 



Euphemus . #117 



Euryocrinus laddi 94 



Eurypterid *18 



Eurypterids, Silurian 70 



F 



Fardenia #65 



Favosites *59, 77 



Fenestella 79 



Fenestrellina 79, *109 



Ferns 30 



Ferrissia #131 



Fishes, Devonian 94 



Mississippian 104 



Permian 121 



Fistulipora 79 



Fistulipora neglecta 61 



Fletcheria #59 



Foerstia *75 



Folds, of brachiopods 36 



Foraminifera 34 



Fossaria *130 



Fungi 30 



Gastrocopta *133 



Gastropoda, general 37 



Devonian 85 



Mississippian 103 



Ordovician 52 



Pennsylvanian 115 



Permian 121 



Pleistocene 126 



Silurian 66 



Geologic map, Ohio 11 



Giant beaver 135 



Gigantoceras inelegans 91 



GilbertSocrinus ohioensis *94 



Ginkgos *32 



Girtyella flora *98 



Glabella, of trilobites 39 



Glaciers, Pleistocene 26 



Globigerina *34 



Glossites (?) belmontensis *120 



Gomphoceras *90 



Goniobasis *129 



Grammysia *85, *102 



Graptozoa, general 41 



Devonian 94 



Ordovician 54 



Griffithides marginatus *104 



Ground sloth *1 35 



Gypidula galeata *64 



Gyraulus *131 



Gyroceras baeri 52, *53 



H 



Habrocrinus benedicti *73 



