INDEX. 



561 



Asplenium 



?, Ui. 



Filix-foeraina, Beruh., 444. 

 Aster cxilis, Ell., 432. 

 Asteroids, remark ou the observa- 

 tion of, 3oo. 

 Astragalus diurnus, 450. 

 misollus, 449. 

 Nevinii, 412. 

 Pringlei, 449. 

 quinqueflorus, 450. 

 Atmospheric electricity at high al- 

 titudes, 129. 

 Atmospheric refraction, 268, 286. 

 instruments used, description 



of, 268, 269. 

 observations at Wachusett, 



271-278. 

 at Harvard College Observa- 

 tory, 278-285. 

 Attalea Cohune, Mart., 464. 

 Ayenia Bei'landieri, 419. 

 Falmeri, 419. 

 pusilla, Linn., 419. 

 Azurite, crystals of, from Arizona, 

 222. 



B. 



Baccharis mucronata, HBK., 4o2. 



thesioides, HBK., 432. 

 Bactris balaiioidea, Wendl., 466. 



Cohune, 467. 

 Bahia Neo-Mexicana, Gray, 391, 433. 

 Balkeneisen, 478, 482. 

 Bandeisen, 479, 483. 

 Baric antimonoso-tungstate, 92. 



arsenoso-niolybdate. 82. 



ar.senoso-tungstate, 79. 



/3y-dibrompyromucate, 168. 



/3S-dibrompyromucate, 161. 



difluorbenzoate, 190. 



hexametajihospho- molybdate, 

 117. 



/Smonobrompyromucate, 148. 



S-monobronipyroumcate, 139. 



tribrompyroraucate, 176. 

 Batrachiura, DC, 363. 

 Bauhinia uniflora, 451. 

 Begonia Balmeri, 429. 

 Beneden, Pierre Joseph van, 511. 

 Benzoic acid, on the action of 

 chromic superfluoride on, 

 187. 

 Bidens bipinnata, Linn., 433. 



heterophylla, Ort., 432. 



leucantha, Willd., 432. 



VOL. XXI. (n, s. XIII.) 36 



Bidens ludens, 390. 



mollis, Poepp., 432. 

 odorata, Cav. , 432. 

 pilosa, Linn., 432. 

 procera, Don, 433. 

 Boerhaavia erecta, Linn., 436. 

 paniculata. Rich , 436. 

 spicata, Choisy, 436. 

 viscosa, Lag. & Rodr., 436. 

 Bonplandia geminifloi'a, Cav., 434. 

 Botany, American, contributions 



to, 363, 414. 

 Bouteloua aristidoides, Thurber, 

 443. 

 bromoides. Lag. ? , 443. 

 hirsuta, Lag., 443. 

 juncifolia. Lag. ? , 443. 

 prostrata. Lag., 443. 

 racemosa, Lag., 443. 

 Brahea calcarea, Liebm. ? , 442. 

 Brickellia betouicsefolia, Gray, var. 

 humilis, 431. 

 brachiata. Gray, 385, 431. 

 ditfusa. Gray, 431. 

 glutinosa, 385. 

 simplex, (iray, 431. 

 Bromide, /38-dibromi>yronmcyl, 164. 

 Bromine and water, action of, 144, 



152, 165, 172, 180. 

 Bromine, ethyl pyromucate with 



one molecule of, 153. 

 Brompyromucic acids, on, 135. 



theoretical considerations, 181. 

 Bromus ciliatus, Linn., 444. 

 Brunella vulgaris, Linn., 436. 

 Brysonima crassifolia, Kunth, 461. 

 Buddleia Humboldtiaua, Roem. & 



Schult., 433. 

 Bunchosia Lanieri, 461. 

 Bursera bipinnata, Engler, 421. 

 fragilis, 422. . 



graveolens, Trian. & Planch., 

 421. 



Cabot, Samuel, biographical notice 



of, 511, 517. 

 Csesalpinia (?) platyloba, 425. 



pulcherrinia, Swartz, 425. 



sessilifolia, 450. 

 Calcic /:iy-dibrompyromucate, 169. 



/Jifi-dilirompyromucate, 162. 



difluorbenzoate, 191. 



/:i-monobronipyromucate, 149. 



fi-inonobrompyromucate, 140. 



