384 



INDEX. 



Mentzelia Conzattii, 298. 

 IVIercury Vapor, Viscosity of, 225. 

 Meteorological records in the upper 



air, 24:3. 

 Mexican Plants, 283, 295. 

 Microstylis platyglossa, 35. 



streptopetala, 36, 297. 

 Mikania, Synopsis of the Mexican and 

 Central American Species, 10. 

 Mikania angulata, 13. 



cordifolia, 13. 



coriacea, 13. 



denticulata, 13. 



eriophora, 12. 



globosa, 11. 



Guaco, 12. 



Hookeriana, 12. 



Iloustonis, 11. 



leiostachya, 12. 



olivacea, 12. 



pterocaula, 12. 



punctata, 13. 



pyraniidata, 12. 



repanda, 13. 



scandens, 13. 



Tlalixcoyan, 13. 

 Montanoa niacrolepis, 44. 



rosei, 45. 

 Morphogenesis, Studies in, 85. 



Nama Pringlei, 38. 

 Pueblense, 39. 



Nemastylis caerulescens, 296. 



Netrosoma, 195, 204. 



Nominating Committee, 328. 



Koyes, A. A., and Goodwin, H. M., 

 The Viscosity of Mercury Va- 

 por, 225-236. 



Oaxaca, Descriptions of New and lit- 

 tle known Phanerogams from, 

 34. 



Octanes in Ohio Petroleum, 111. 



(Edaleonotus, 203, 206. 



Officers elected, 320, 327. 



Oldenlandia xestosperma, 41. 



Ontogeny, 207. 



Organic cycles, 207. 



Oteiza, 21. 



Paraidemona, 197, 204. 

 Paradichroplus, 196, 204. 

 Paratylotropidia, 201, 205. 

 farker, H. G. See Richards, T. W., 

 and Parker, H. G. 



Paroxya, 203, 205. 

 Perezia Cuernavacana, 50. 



umbratilis, 50. 

 Petroleum, Canadian, 119. 



Constituents of, 119. 



Ohio, 111, 119. 



Pennsylvania, 119. 



South American, 183. 

 Petroleum Hydrocarbons, structure of, 



173. 

 Phaedrotettix, 196, 204. 

 Phaulotettix, 197, 204. 

 Philocleon, 203, 206. 

 Phoetaliotes, 202, 205. 

 Phorodendron Forestierse, 36. 

 Phylogeny, 207. 



Physical Laboratory of the Massachu- 

 setts Institute of Technology, 

 Contributions from, 225. 

 Podisma, 2U0, 205. 

 Poecilotettix, 203, 206. 

 Porophyllum, A Provisional Key to 

 the Species ranging North of 

 the Isthmus of Panama, 31. 

 Porophyllum amplexicaule, 32. 



coloratura, 33. 



crassifolium, 33. 



decumbens, 32. 



ellipticum, 31. 



Ervendbergii, 31. 



filifolium, 33. 



gracile, 33. 



Jorullense, 32. 



Lin aria, 33. 



Lindenii, 31. 



macrocephalum, 31. 



Nelsonii, 32. 



nummularium, 31. 



nutans, 31. 



obtusifoliura, 32. 



Palmeri, 32. 



pausodynum, 32. 



Pringlei, 32. 



ruderale, 31. 



scoparium, 32. 



Seemannii, 32. 



tagetoides, 33. 



tridentatum, 33. 



viridiflorum, 31. 

 Prescott, S. C, An Investigation of 

 some of the Bacteriological As- 

 pects of the Art of Tanning, 

 328. 

 Proceedings of Meetings, 315. 

 Pseudotridax, 10. 



