30 



Bulletin of Laboratories of Denison University. 



Prasopora parmula n. sp. 2:170. 

 Prenanthes altissima 7 :S4. 



crepidinea 8-II •./\. 

 Preglacial drainage in Big Sandy 

 Valley 9-II :26. 

 in California Valley, O. 



9-II -.27. 

 features of Southern Ohio 



9-II -.27. 

 in Flat Woods Valley 



9-II :29. 

 in Kinniconick 9-II ■.2g. 

 in Tygart's Creek 9-II :29. 

 of Muskingum 8-II :47, 



II :59- 

 of Ohio 9-I:i5, 25. 

 of Ohio, Cent, to know- 

 ledge of 8-11:35. 

 of Symmes Creek 9-II :28. 

 of Salt Creek 9-11:28. 

 of Tuscarawas 8-II :47. 

 and recent Drainage Chan- 

 nels in Ross Co., O. 9- 

 .1:15, 25. 

 evidence of a buried channel 



in N. W. Ohio 8-II :56. 

 Muskingum, course of 8- 

 11:41. 



drainage relation of to the 



state 8-II :5i. 



Preglacial tributary to Paint Creek 



and its relations to the 



Beech Flats of Pike Co., 



o. 9-1:25. 



valley in Fairfield Co., O. 



^"n -Si- 



valley of Licking River 

 8-II :44. 

 Prickly Ash 7 :25. 



Lettuce 7 :54. 

 Primulaceae 7 :57. 

 Prince's Feather 7:73. 



Pine 7:57. 

 Prismopora sereata 2:75. 

 Prosencephalon 5:81. 

 Procyon lotor, effect of electrical 

 stimulation on brain of 

 5 :38. 

 Productus ao(|uic(istatus, see P. cora 



arcuatus 3:31. 



calhounianus, see P. cora 



concentricus 3:33. 



cora 2:47. 



costatus 2 :49. 



duplicostatus 4:21. 



flemingi, var. burlingtonen- 

 sis 3:32. 



flemmsrii, sec P. cora. 



gracilis 3:34. 



konnickeanus, see P. cora. 



lachrymosus, var. stigmar- 

 ius 3:34. 



laevicostus, sec P. cora. 



longispinus 2:15, 48. 



muricatus 2 :i5, 49. 



nebra scensis 2:15, 49, 3:31. 



newberryi 4:20. 



newberryi. var. annosus. var. 

 n. 4:20. 



nodocostatus n. sp. 4 :22, PI. 

 3- 



parvus 4-PI. II. 



pratteniansus, sec P. cora. 



punctatus 2:48. 



raricostatus n. sp. 4:19. 



rushvillensis n. sp. 4:22. 



semireticulatus 3:31, see P. 

 cora. 



(Productella) shumardianus 

 3:32. 



shumardiana, sec P. concen- 

 tricus 3:33. 



subaculeatus, sec P. shumar- 

 dianus 3:32. 



sp. 2-Pl. 2. 



(Productella) speciosus 3 :34 



key to genus 4:15. 

 Proetidae 2 :52. 

 Proetus 2 :53. 



auriculatus, see Phillipsia 

 auriculatus 4:54. 



determinatus n. sp. 2:gi. 



ellipticus 2 :53. 



haldermani (?) 7." 55. 



laevis 2 :53. 



minutus n. sp. 4:56. 



missouriensis, see Phillip- 

 sia shumardi 3 :29. 



missouriensis, see Philip- 

 sia auriculatus 4 :54. 



praecursos. see Phillipsia 

 praecursos 4:54. 



sp. 2:92. 



diagnosis of genus 4:51. 

 Projection, electrical couple for 5:20. 

 Promacra truncatus n. sp. 3:60. 

 Prosencephalon of Erethizon 6:28. 



of Goomys 6:31. 

 Protobasite i :Tio. 

 Prothyris 2 :32. 



(cf. elegans) 2:32. 



meeki 3:66 PI. 8. 

 Protoschizodus, sec Schizodus. 

 Protozoa of Flint Ridge, O. 2:50. 

 Prunus americana 7 :32. 



serotina 7 :32. 



virginiana 7 :32. 

 Pseudocol A. 9-11:31. 

 Pseudomonotus radialis 2:145. 

 Psoralen onobrychis 7 :29, 8-II '.4. 



