484 



INDEX. 



ffinothera hirmta, Walp., 350. 



maci'osceles, Gray, 356. 



refracta, AVatson, 373. 



rosea, Ait., 357. 



s'inuata, Michx., 356. 



speciosa, Niitt., 356. 



strigidosa, 373. 



tetraptera, Cav., 356. 



W7-ightli, Gray, 3.57. 

 Oligomeris glaucescens, Camb., 32.3. 

 Opuutia imbricata, DC, 360. 



Kleinije, DC, 360. 

 Orthoiodbenzylbromide and its de- 

 rivatives, preliminary notice 

 of, 103. 

 Osseous fishes, on the young stages 



of some, 271. 

 Oxalis corniculata, Linn., 305. 



decaphylla, II BK., 335. 



dichondra?folia, Gray. 335. 



Wrightii, Gray, 335. 

 Oxybaphus linearifolius, Watson, 

 375. 



P. 



Pachystima Myrsinites, Raf., 336. 

 Parkinsonia aculeata, Linn., 348. 



Texan a, Watson, 348. 

 Passiflora bryonioides, HBK., 359. 

 foetida, Linn., 359. 



teiiuiloba, Engehn., 359. 

 Pattern of insects, on the color and, 



234. 

 PauJlinia suhulata, Gray, 337. 

 Pavonia lasiopetala, Scheele, 332. 



Wrightii, Gray, 332. 

 Pedicularis bracteosa, Renth., 375. 



Canadensis, Linn., 375. 



Furbishipe, Watson, 375. 

 Peganuin ]\Iexicanum, Gray, 335. 

 Pelagic fish eggs, 289. 

 Peltier and Thomson, effects of 



thermoelectricity, 39. 

 Petalonynx crenatus, Gray, 358. 

 Petalostemou obovatus, Torr. & 



Gray, 341. 

 Peteria scoparia. Gray, 342. 

 Peucedanum Mexicanutn, Watson, 



361. 

 Phaseolus atropurpureus, DC, 340. 



diversifolius, Pers., 346. 



filiforniis, Benth., 346. 



heterophyllus, Willd., 346. 



multiflorus, Willd., 347. 



polyuiorphus, Watson, 346. 



Phaseolus retusus, Benth., 346. 



scabrellus. Benth., 346. 



Wrightii, Gray, 346. 



-'?, 347. 



Philadelphus serpyllifolius, Gray, 



3.54. 

 Phospho-molybdate, ammonic, 68. 

 Phospho-molybdate of ammonium, 



77. 

 Phospho-molybdates, 62. 

 Phospho-molybdic acid. Twenty- 

 four atom series, 05. 

 Phosphoric and molybdic oxides, 



percentages of, 63. 

 Physaria didymocarpa, Xutt. , 303. 



Geyeri, Gray, 363. 



Newberry i. Gray, 303. 



Oregona, Watson, 303. 

 Pistacia Alexicana, II BK., 338. 

 Pithecolobium brevifoliiim, Benth., 

 352. 



elacbistophyllum, Gray, 352. 



Palmeri, Ilejnsl., 3.32. 



Schaffneri, Watson, 352. 

 Polanisia trachysperma, Torr. & 

 Gray, 323. 



uniglandulosa, DC, 323. 

 Polygala alba, Nutt., 325. 



Greggii, Watson, 325. 



hemipterocarpa, Gray, 326. 



Lindheimeri, Gray, 324. 



macradenia. Gray, 325. 



Mexicana, DC, 325. 



obscura, Benth., 325. 



ovalifolia, DC, 324. 



Palmeri, Watson, 325. 



puberula, Gray, 324. 



puhescens, 324. 



scoparia, II BK., 325. 



seniialata, AVatson, 326. 



viridis, AVatson, 320. 

 Polygonum intermedium, Xutt., 



378. 

 Porlieria angustifolia, Gray, 334. 

 Portulaca pilosa, Linn., 329. 

 Potassium salt, acid, 70, 73. 

 Potentilla heptaphylla, Mill., 353. 



Xorvegica, Linn., 3.'j3. 

 Propionic acids, on certain tetrasub- 



stituted, 140. 

 Prosopis cinerascens, Gray, 348. 



juliflora, DC, 348. 

 Prunus Capuli, Cav., 352. 



glandulosa, Torr. & Gray, 352. 



Mexicana, Watson, 353. 

 Psoralea pentaphylla, Linn., 339. 



rhombifulia, Torr. & Gray, 339. 



