472 



INDEX. 



Laboulbenia Brachini, 40. 



conipacta, 37. 



contorta, 42. 



curtipes, 40. 



Galeritse, 39. 



gibberosa, 43. 



Gyrinidarum, 39. 



inflata, 41. 



luxurians, 38. 



Nebi'ise, 45. 



parvula, 41. 



pedicellata, 44. 



recta, 42. 



Scbizogeuii, 43. 



truncata, 45. 



variabilis, 38. 



vulgaris, 44. 

 Laurylene, 83. 

 Leptosyne pirmata, 176. 

 Litliospermum calcicola, 182. 



revoluturn, 182. 

 Lopezia angustifolia, 168. 



M. 



Margarylene, 82. 



Marpesia, 246. 

 chiron, 248. 

 coresia, 248. 

 peleus, 246. 

 pellenis, 247. 



Matrices, on a Theorem of Sylves- 

 ter's relating to Non-degen- 

 erate, 46. 

 Note on the Representation of 

 Orthogonal, 163. 



Melarapodium longipilum, 173. 



Melting Points, Note on the Rela- 

 tive Position of High Tem- 

 perature, 100. 



Mesoxalic - acid - phenylhydrazone, 

 124. 



Mesoxanilide and its derivatives, 

 119. 



Mesoxanilidehydrate, 122. 



Mesoxanilide-phenylhydrazone, 121. 



Mesoxanilid-imidechloride, 117. 



Mesox-o-toluidehydrate, l43. 



Mestra, 240, 241. 

 amymone, 241. 



Meta Nitrobenzoic Acid, action of 

 Phosphorpentoxide in an ex- 

 cess of Benzol upon, 97. 



Methylfurfuramide, 190. 



Methylfurfurol, 186, 188. 



Methylpyromucate, Argentic, 197. 



Baric, 195. 



Calcic, 196. 



Ethyl, 198. 



Potassic. 197. 



Sodic, 197. 

 Methylpyromucic Acid, 186, 193. 



Tetrabromide, 212. 



N. 



Nectonema Agile, Preliminary Com- 

 munication on the Host of, 

 260. 



New Plants, Descriptions of, col- 

 lected in Mexico by C. G. 

 Pringle in 1890 and 1891, 

 with Notes upon a few other 

 Species, 165. 



Nonyl Hydride, 80. 



O. 



Octyl Hydride, 78. 

 Iso-Hydride, 79. 



Oldenlandia Pringlei, 169. 



Orthogonal Matrices, Note on the 

 Representation of, 163. 



Orthonitrobenzoic Acid, action of 

 Phosphorpentoxide in an ex- 

 cess of Benzol upon, 95. 



Oxymethylpyromucic Acid, 210. 



Para Nitrobenzoic Acid, action of 

 Phosphorpentoxide in an ex- 

 cess of Benzol upon, 98. 



Perezia Michoacana, 179. 



Petroleum, Researches on the Vola- 

 tile Hydrocarbons in Penn- 

 sylvania, 56. 

 examination of the, 59. 

 of the analyses and physical 

 properties of the different 

 bodies separated from, 66. 



Phacelia namatostyla, 181. 



Phenylhydrazone of Pyruvic Acid, 

 132. 



Phenylhydrazonehydrate, Benzoyl- 

 formic-o-toluide, 148. 



Phenylimidocarbonylchloride, 114. 



Phenylisocyanide, 108. 



