26 



Bulletin of Laboratories of Denison University. 



Falls of 9-1 :4. 



Fossils of Waverly of 4:123. 

 " " addi- 



tions and corrections 



5:33- 



Logan Group 4:103. 



P r e g 1 a c i a 1 drainage of 

 9-1: IS, 25. 



Preglacial drainage, features 

 of 9-II :22. 

 Ohio River Gorge 8-II :57. 



Tertiary 8-II:6i. 



Tributaries of 8-II :57. 



Valley, features of 9-II ;22. 

 " development of 

 9-1 1 :30. 



Waverly shale of 4:107. 

 Old Witch Grass 7 :93. 

 Oleaceae 7:58. 

 Olfactories and cerebrum of the 



opossum 6 :75. 

 Olfactory lobes of Erethizon 6:27. 



of Geomys and Erethizon 

 6:36. 

 Oligoclase i :Ti8. 

 Olivary body of Arctomys 5 :56. 

 Olivine i :T9. 

 Omphacite i :Ti4. 

 Onagraceae 7 :38. 

 Onoclea sensibilis 7:101. 

 Onosmodium virginianum 7 :62. 

 Oothonota rectidorsatus 3-PI. 9. 

 Ophioglossaceae 7:101. 

 Ophridium paradoxum i-Pl. 10. 

 Opossum, cerebrum and olfactories 



of 6:75. 

 Optic tracts in Geomys and Ere- 

 thizon 6:40. 



of rodent brain 5 :40. 

 Oracardia Genus n. 4:41. 



cornuta n. sp. 4:42. 



ornata n. cp. 4:41. 

 Orange Root, 7:14. 

 Orbiculoidea sp. 3:30. 



pleurites 4:12, 19. 

 Orbiculnifles newberryi 4.12, PI. 10. 

 Orchard Grass 7 :97. 

 Orchidaceae 7:81. 

 Orchid. Showy 7 :82. 



Ragged Fringed 7 :82. 

 Orchis rotundifolia 7:82. 



spectabilis 7:82. 

 Orioles i :i3. 



Ornithogalum umbellatum 7 :84. 

 Orobanchaceae 7 :66. 

 Orfhis I :8o. 



bella-rugosa i :86. 

 biforata f. Clintonensis i :76. 

 " var. Ivnx i :74, 78, 



'80. 

 " var. lynx f. dayto- 



nensis i:8j. 

 " var lynx f. rever- 

 sata 1:80. 

 daytonensis i :74. 



" n. sp. I :87. 



elegantula i -.76, 78, 84. 



" var. parva i :78, 



85. 

 fausta 1 :7o, 76. 



n. sp. i.-S'i. 

 flabella 1:76, 78, 82. 

 hybrida i -.76, 78, 83. 

 insculpta i :86. 

 nisis 1 :78, 86. 



vanuxemi. var. pulchellus, 

 var. n. 3:38, 4-PI. 9. 

 Orthoceras 1:117, 2:17. 

 cribrosum 2:17. 

 duseri 2:17. 

 heterocinctum 4 :47. 

 inceptum n. sp. 1:117. 

 indianense 3-PI. 9. 

 rushensis 2:17, 4-PI. 7. 

 Orthoclase i :Ti2. 

 Orthonema sp. 2-PI. 14. 

 Orthonota rectidorsalis 3:65. 

 Osage Orange 7 -.76. 

 Osbun, Prof. Isaac Justin, Biogra- 



raphy 10 :I2. 

 Oscillaria sp. 4:132. 



tenuis 4:132. 

 Osmorrhiza brevistylis 7:42. 



longistylis 8-II :4. 

 Osmunda claytonia 7:101. 



cinnamomea 7:101, 8-11:6. 

 regalis 7:101. 

 Osteology of Hesperiphona vesper- 



tina I -.7. 

 Ostracoda. Cladocera, Copepoda and 

 Rotifera of Cincinnati, 

 O. 6:57. 

 Notes on American with 

 descriptions of n. sp. 



8-11:13. 

 of Cincinnati, O. Notes on 

 8-1 :3. 

 Ostrya virginica 7 •.7^. 

 Ottrelite i :Ti2. 



Oxalis corniculata, var, stricta 7 :25. 

 recurva 7:25. 

 violaceae 7 :25. 



