122 



The Biological Society of Washington. 



Chelopus insculptus 65 



Chelydra serpentina 11 



Chrosomus erythrogaster 94 



Chrysemys elegans 12 



hieroglyphica 12 



marginata 12 



troosti 12 



Cichla fasciata 107 



Cistudo Carolina 12 



Citellus ablusus 61 



parvus ... 25 



Clark, H. W. On the unusual flower 



ing of certain plants 

 Observations on Riccia . 



Clupea alosa 



harengus 



sapidissima 



sardina 



Cnemidophorus sexlineatus . 

 Coccyzus dominicse 



grenadensis . - . 



maynardi .... 



minor 



nesiotes 



vincentis ... 

 Coleosanthus garrettii 

 Coluber guttatus . . 



obsoletus 



Cook, O. F. Parthenogenesis and al 

 ternation of generation in parasitic 



Hymenoptera 



Cooke, W. W. A resum6 of the present 



bird migration season 



Discussion of the spring migra- 



vii 



vii 

 . 99 

 . 99 

 . 99 

 . 99 

 . 11 

 . 54 

 . 53 

 . 54 

 . 54 

 . 54 

 . 54 

 . 38 

 . 12 



10 



vii 



IX 



tion of birds . 

 Coregonus albus 

 angusticeps 

 artedi . . . 

 coulter! . . 

 clupeiformis 

 harengus 

 kennicotti . . 

 labradoricus 

 latior .... 

 lucidus . . . 

 nelsoni . . . 

 quadrilateralis 



100 

 100 

 100 

 99 

 100 

 100 

 ... 99 

 . . .100 

 ... 100 

 . . .100 

 . . .100 

 . . 99 



signifer 104 



thymalloides 104 



tullibee 100 



williamsoni 99 



Corynorhinus macrotis 7 



Cottusasper 110 



cognatus 110 



formosa Ill 



franklini Ill 



gracilis Ill 



hexacornis Ill 



ictalops 110 



labradoricus . . Ill 



onychus 110 



philonips 110 



richardsoni 110 



spilotus .110 



Couesius dissimilis 97 



greeni 98 



plumbeus 97 



prosthemius 98 



Coville, F. V. Photographic reproduc 

 tions of rare botanical books . . . ix 



Cristivpmer namaycush 102 



siscowet 103 



Crotalus horridus 11 



Cyclophis sestivus 10 



Cyprinus catostomus 93 



chrysoleucas 95 



forsterianus . . 93 



gracilis 98 



hudsonius 93 



smithii 98 



Dall, W. H. Notes on Cretaceous Volu- 



tidfe vii 



Desmognathus fusca 15 



Dewey, L. H. The zapupe fiber plant 



of eastern Mexico ix 



Diadophis punctatus .... ... 10 



Didelphis virginiana 2, 71 



Diemyctylus viridescens 15 



Dipodomys cratodon 75 



insularis 77 



kernensis 77 



margaritae . 76 



nelsoni 75 



platycephalus 76 



Douglasia Johnston! 37 



Erethizon myops - .62 



Erimyzon oblongus 94 



Esox boreus . 105 



estor 105 



lucius 105 



masquinongy 106 



nobilior ... 106 



reticulatus 105 



Etheostoma aspro 109 



boreale 109 



flabellare 100 



guntheri 109 



iowse 109 



nigrum 109 



quappelle 109 



Eucalia inconstans 106 



Eumeces quinquelineatus 11 



Eupomotis gibbosus ... 107 



Eutsenia saurita 12 



sirtalis 11 



Eutamias consobrinus 24 



minimus 24 



operarius 24 



utahensis 23 



Evermann, B. W. The golden trout 

 and the southern high Sierra . ix 



Freshwater mussels and the 



pearl button industry x 



Evermann, B. W., and Goldsborough, 

 E. L. A check list of the fresh 

 water fishes of Canada .... 89-120 



Evotomys dawsoni 61 



Exoglossum maxillingua OS 



Fiber spatulatus 62 



zibethicus 5, 73 



Fritellaria lunellii ... 35 



Fundulus diaphanus 106 



heteroclitus 106 



Gadus lacustris . . . 



lota 



maculosus . 

 Gasterqsteus aculeatus 



bisplnosus . 



concinnus . . . 



cuvieri . . . 



gymnetes . . . 



inconstans . . 



pungitius 



. - 92 



. . 111 



. .111 



. - 107 



. .107 



. . 106 



. 107 



. .106 



- 106 



. . 106 



Gidley, J. W. A new horned rodent 

 from the Miocene of Kansas . . . viii 



Gill, T. N. New facts concerning par 

 ental care among freshwater fishes ix 



