278 



NEW YORK STATE MUSEUM 



Crustacea, ii6\ 218^-^1°. 



Cuesta, 40'\ 55''; illus. facing p. 25, 



Cyathophyllnm, 138^ 



hydrauliciim. 117", 138". 

 Cybele punctata, 225°. 

 Cyclas staminea, 246'-47\ 



striatina, 246'. 

 Cyclostoma lapidaria, 242^ 



tricarinata, 243\ 

 Cyrtina, 197^ 



pyramidalis, 197^ 

 Cyrtoceras, 216*. 



cancellatum, 216''. 



subcancellatum, 2I6^ 

 Cystoidea, i48'-52\ 

 Cytherina cylindrica, 218". 



spinosa, 220^ 



Dalmanella, 1871 



elegantula, loi*, ios\ 187". 

 Dalmanites, 22s'^-24^. 



Hmulurus, 105*, 224\ 

 Davis, W. M., cited, 353', 40', 41°; 



mentioned, 18'. 

 Dawson, G. M., cited, 254\ 

 Day, D. F., catalogue of plants, ii\ 

 Delthyris sulcatus, 200'. 

 Desor, E., cited, 254\ 

 Devil's hole, 15', 17", lio"'; view near, 



facing p. 104. 

 Devonic series, SS', 120^-21"; Siluro- 



Devonic contact, II7°-20^ 

 Diamesopora, 175". 



dichotoma, 175^ 

 Diaphorostoma, 211^-12^. 



niagarense, 103', 2I2\ 

 Dictyonella, I79^ 



corallifera, 179^' 

 Dictyonema, I33^-34^ 



retiforme, i33''*-34^'. 

 Dip of strata, 35'*-36". 

 Diploclema, 162*. 



sparsa, 162^ 

 Diplophyllum, i39''-4ol 



cacspitosum, lyf -40^. 

 Dolichoptcrus, 230'. 



macrochirus, 230^ 

 Drainage features, development of, 



3f-54'- 

 Drymotrypa, 169^-70". 



dififusa, i69'*-7o'. 



Duflferin islands, l3^ 

 Dundas valley, 27*, 42*-46". 



Eddy basin, 78*, 79'. 

 Encrinurus, 225*. 



ornatus, 225°. 

 Enterolasma, 136^-37^. 



caliculus, loi^ 1317". 

 Eucalyptocrinus, loi*, lof, isf-sS^. 



decorus, I57--58^ 

 Eurypterida, ii6^ 228^-3 il 

 Eurypterus, 228^-3o\ 



dekayi, 230". 



giganteus, 229°. 



lacustris, 229^ 



var. robustus, 229^. 



pachychirus, 23o\ 



pustulosus, 229". 



remipes, 229"^; illus. facing p. 229. 



robustus, 229^ 

 Eusarcus, 230". 



grandis, 2301 



scorpionis, 23i\ 



Fairchild, H. L., cited, 254',. 57'; 



mentioned, 18". 

 Favosites, 112^, 125"', i4o'"'-42'''. 



constrictus, 142". 



niagarensis, i42''-43l 



parasiticus, 141". 



pyriformis, I4I*-42^ 



venustus, i4o''-4i\ 

 Featherstonaugh, G. W., cited, 254'. 

 Fenestella, i70"-7i". 



elegans, 170^-71". 



prisca? 171*. 



tenuiceps, 171*. 

 Fleming, M. A., cited, 254^ 

 Flexibilia, 159^-60''. 

 Fluvial period, 66^-82\ 

 Foerste, A. F., cited, 254". 

 Foot, Lyman, cited, 254^ 

 Fort Massassauga, 27". 

 Fort Niagara, 27". 

 Fossiliferous sections, 1&-21. 

 Fossils, 130^-46"; in Siluric beds, dis- 

 tribution, 232-37. 

 Foster's flats, 15", 71^-76^; illus. fac- 

 ing p. 72; shell-bearing gravels, 

 2381 



