484 



INDEX. 



Madotheca Mexicana, Hainpe, 190. 

 Maguetism, iullueiice of, upon ther- 

 mal conductivity, 210. 

 Magnetite, very pure, 203. 

 Magnetization, lieat produced iu iron 

 and steel by reversals of, 197, 

 205. 

 Marrubium vulgare, Linn., 140. 

 Marsh, George P., notice of, 447. 

 Marsilia Mexicana, A. Braun, 189. 

 Martynia proboscidea, Glox., 132. 



fragraus, Lindl., 133. 

 Maurandia Barclayana, Lindl., 129. 



erecta, Hemsl., 129. 

 Melampodium cinereuni, DC, 104. 

 Menodora Coulteri, Gray, 112. 



heterophylla, Moric, 112. 



longiflora, Gray, 112. 



scabra. Gray, 112. 



scoparia, Engelin., 112. 

 Mentha arvensis, Linn., 136. 



rotundifolia, Linn., 136. 

 Meridian circle, on a method of deter- 

 mining the index error of a, 

 284. 

 Metastelma Californicum, Benth., 115. 



Palmeri, 115. 

 Meter, — 



Tresca, 287. 



Troment, 288. 



Bronze yard and, 293. 



Brass yard and, 294. 



Glass yard and, 295. 

 Meters, comparison of, 360, 383, 386. 

 Methyl, alcohol, 51. 



acetate, 50. 



acetone, 51. 



formiate, 49. 

 Metrology, studies in, 287- 

 Metzgeria pubcscens, Raddi, 190. 

 Microchloa setacea, R. Br., 176. 

 Micromeria Xalapensis, Benth., 136. 

 Microscopes, description of, 332. 

 Microstylis corymbosa, 195. 



purpurea, 195. 

 Microstylis fastigiata, Reichenb., 159. 



montana, Rothr., 159. 

 Mikania scandens, Willd., 101. 

 Milla biflora, Cav., 165. 

 Mimnlus glabratus, HBK., 130. 

 Mirabilis jalapa, Linn., 142. 



longiflora, Linn., 142. 

 Mitracarpium breviflorum, Gray, 98. 

 Mitreola petiolata, Torr. & Gray, 116. 

 Monar.da citriodora, Ccrv., 140. 



punctata, Lhiu., 140. 



Monobromcinnamic acid, 279. 

 Montia Howellii, 191. 

 Muhlenbcrgia Berlaudieri, Trin. (?), 

 174. 



Calamagrostidca, Kunth, 174. 



clomena, Trin., 174. 



scabra, 174. 



SchafFueri, Fourn., 174. 



N. 



Naraa Coulteri, Gray, 118. 



dichotomum, Choisy, 118. 



hispidum, Gray, 11*8. 



Jamaicense, Linn., 119. 



origanifolium, HBK., 119. 



Palmeri, Gray, 118. 



rupicola, Pavon, 119. 



Schaffneri, Gray, 119. 



serphylloides. Gray, 119. 



stenocarpum. Gray, 118. 



stenophyllum. Gray, 118. 



subpetiolare. Gray, 119. 



undulatum, HBK., 118. 

 Neckera Ehreubergii, Muell., 190. 

 Nectouxia formosa, HBK., 127. 

 Nemastylis multiflora, Benth & Hook., 

 160. 



nana, 160. 



tenuis, Benth. & Hook., 160. 

 Nicoletia Edwardsii, Gray, 108. 

 Nicotiaua glauca, Linn., 129. 



nudicaulis, 128. 



repanda, Willd., 128. 



trigonophylla. Dun., 128. 

 Nierembergia angustifolia, HBK., 129. 

 Nitella asagrseana, SchafTner, 190. 



clavata, A. Braun, 190. 

 Nitrate solution, potassic, 276. 

 Nitrous acid, volumetric determina- 

 tion of combined, 275. 

 NoHna liumilis, Watson, 163. 



Lindheimeriana, Watson, 163. 

 Notholsena Aschenborniana, 

 Klotzsch, 184. 



brachypus, J. Smith, 184. 



Candida, Hooker, 185. 



ferruginea. Hooker, 184. 



Grayi, Davenport, 184. 



Hookeri, Eaton, 184. 



nivea, Desv., 185. 



sniuata, Kaulf., 184. 

 Nothoscordum striatum, Kunth, 165. 

 Nyctagmea capitata, Chois., 142. 



