INDEX. 



393 



Cactus Region, geography of the, of the United States, 311. 



Calculating Engine of Babbage, 389. 



Caldwell, George C. On the oleic acid series of fatty acids, 349. 



Carbonaceous deposit, 379. 



Cell-segmentation, on the signification of, 43. 



Cereus, 278. 



Subgen. Echinocereus, 278. 



acifer, 284. 



adustus, 280. 



Berlandieri, 286, 314. 



csespitosus, 280. 



chloranthus, 278. 



conoideus, 284. 



ctenoides, 279. 



dasyacanthus, 279. 



dubius, 282. 



Engelmanni, 283. 



enneacanthus, 282. 



Fendleri, 281. 



gonacanthus, 283. 



hexaedrus, 285. 



longisetus, 280. 



Mojavensis, 281. 



paucispinus, 285. 



pectinatus, 279. 



pentalophus, 314. 



phceniceus, 284. 



polyacanthus, 284. 



procumbens, 286. 



Roemeri, 285. 



rufispinus, 280. 



stramineus, 282. 



triglochidiatus, 283. 



tuberosus, 286. 



viridiflorus, 278. 

 Subgen. Eucereus, 286. 



Emoryi, 286. 



Greggii, 287. 



variabilis, 287. 

 VOL. III. 50 



