INDEX TO PROCEEDINGS. 



311 



Page. 



Omus edwardsii . 208 



— hor7iii. 208 



— Iccontei. 208 



— Icevis 208 



■ — sequoiarinH 208 



— sithmetallicus 208 



Ontario, Hamilton formation of. . 19 



Ophyra teticostoHia 1 54 



Orbiculoid^ 27 



Orizaba 81 



Orozco y Berk a, Cited on notched 



bones 102, 104 



Ortalid^ 154 



Orthezia nigrocincta 1 56 



Orthis 21, 23 



Orthis beds 24 



Orthis iowensis 26 



Orthocera, Reference to 23 



Orthoceras 27 



Orthothetes chemungensis 26 



— arctostriata 26 



Or YZOPSis asperifolia 238 



— cxigua 238 



— )nicrantha 231, 238 



OsBORN, Prof. Herbert, Appoint- 

 ment of on standing committee 279 



— , Election of as honorary member 278 



— , Reference to paper by 279 



— and Ball, Elmer D.; Studies 



of North American Jassuida;. . 45 



■ ; The Genus Pediopsis.. . . 11 1 



; Reviewof the North Amer- 

 ican Species of Idiocerus 124 



OsciNiD^ 155 



Oshatch, Clan 42 



Oslar, Ernest J., Acknowledg- 

 ment to 212 



Owen, Dr. D. D., Cited on local 



geology 16, 32 



Oxybelus abdominalis 1 48 



— coloradensis 148 



— cornatus 148 



— heterolepis 148 



var. defectus 148 



— packardii 148 



— quadricolor 148 



— qttadfinotatiis 148 



■ — var. montanus 148 



— sparidens 148 



— siibcornatus 148 



— trifidiis 148 



Pach yctrina limbipcnnis 1 55 



— vcrticalis 155 



Pachypora fischeri 18 



Packardi series of Melanopli. 192, 194 



Page. 



Pammel, Prof. L. H., Acknowl- 

 edgment to 96 



— ; Notes on Grasses of Nebraska, 



South Dakota, and Wyoming.. 229 



— ; Introduction to Fungi of Colo- 

 rado, Wyoming, and Nebraska 246 



Panice^e 237 



Panicularia aquatica 231, 243 



— nervata 231, 243 



Panicum aflanticitm 237 



— capillare 237 



— crus-galli 237 



— scrihnerianujii 237 



— virgatutn 100 



Paracyclas elliptica 18 



— lirata 18 



Paradidyma via^nicornis 153 



— singularis 153 



Paramesus, Reference to 97 



Paratiphia albilabris 144 



Parker, J. Monroe, Mention of 



bequest by 273 



Parker, Mrs. J. Monroe, Men- 

 tion of bequest by 272 



Parky, Dr. C. C. Mention of j6 



Parry, Joseph, Donation by 284 



Parry, Mrs. Dr., Donation by.262, 266 



47 

 47 

 51 

 1 1 



'9 

 18 

 18 

 20 

 20 

 18 

 18 



19 

 22 

 16 



23 



21 

 22 



23 

 16 



19 



Passaloecus amutlatus . 



— armeniaccT 



Pectis papposa 



Pediopsis 50, 



Pediopsis basa/is 114, 



— bifasciata 112, 114, 117, 



— canadensis 1 13, r 14, 



— crocea 68, 11 5, 



— erythroccpliala 115, 



— ferriiginoides .66, 114, 117, 



— porescens 



— fu/nipennis 



— gleditschio' 67, 115, 



— insignis 112, 



— ni/bi/a 



— occideutalis 112, 113, 115, 



— piinctifrons 112, 113, 115, 



— reversal is 69, 115, 



— sordida 114, 



— sutiiralis 67, 



— tri7naculata 112, 114, 1 16, 



— tristis 112, 114, 



— virescens 



— viridis 112, 113, 115, 



Pelop.eus ser-i'illci 



Pemphredonid/e 



Penafiel, Dr. Antonio, Carved 



shell belonging to 



Pentamerella arata 



— niicula 



Pepsis chrysothemis. 



