582 



INDEX. 



Pitlirix, 18. 



Dumas, Jean-Baptiste- Andre, notice 



of, 545. 

 Dysodia, Cav., 35, 36, 37. 



antliemidifolia, Benth, 40. 



appendiculata, Lag., 38. 



cancelluUi, 38. 



chrysantlienioidos, Lag., 39. 



Cooperi, Gray. 39. 



grandifiora, DC, 37. 



integrifolia, 37. 



montaiia, 38. 



poropliylla, Cav., 38. 



poropliylloides, Gray, 39. 



pube.scen.s, Lag., 39. 



ses.siIifolia, DC., 37. 



speciosa, Gray, 38. 



squamosa, 38. 



tagetiflora, Lag., 39. 

 Dysodiopsis, Gray, 40. 



E. 



Eatonella, 19. 



Congdoni, 20. 



nivea, 19. 

 Echidiocarya ursina, 90. 

 Electra, DC., 15. 

 Ellis, Calvin, notice of, 492. 

 Encelia, 7. 



calva, 8. 



exaristata, 8. 



Ghiesbreghtii, Gray, 9. 



halimifolia, Cav., 8. 



heteropliylla, Ilemsley, 9. 



lagasca^formis, 9. 



Mexicana, Mart., 8. 



microphylla, Gray, 7. 



srcaposa, 7. 



stenophylla, E. L. Greene, 8. 



subaristata. Gray, 8. 

 Engelmann, George, notice of, 510. 

 Epsilon and its derivatives, table 



for, 43G. 

 Ericaceae, 84. 

 Erigeron Arizonicus, 2. 



Lemnioni, 2. 



Keo-Mexicanus, 2. 



Oreganus, 2. 

 Eriopliyiliim, Lagasca, 22, 2i. 



anibiguiun, 2(3. 



caespitosum, Dougl., 26. 



Eriophyllum confertiflorum, 25. 

 gracile. 20. 

 lauosuu), 25. 

 niulticaLde, 24. 

 nubigenum, Greene, 25. 

 Pringlei, 25. 



stiecliadifolium, Lag., 25. 

 Wallacei, 25. 

 Watsoni, 26. 

 Eritriohiuiu Cooperi, 89. 

 micromeres, 90. 

 molle, 89. 

 oxygonum, 89. 

 Errors, probability of, table of the, 

 434. 

 logarithmic probability of, table 

 of the, 435. 

 Ether extract with steam, study of 

 the distillate obtained from, 

 217. 

 Euactinella, 32. 

 Eubaeria, 21. 

 Eudysodia, 37. 

 Euhymenatherum, 40. 

 Eupatoriacese, 1. 

 Eupectis, 44, 45. 



Eustachian tube to the first visceral 

 cleft, relation of the external 

 meatus, tympanum, and, 111. 

 Eutermes, Heer, 143. 

 fossarum, 143. 

 Meadii, 144. 

 Eutroxiniou, 71. 



Evening observations: Eylert, 197. 

 He'is, 192. 

 Jones, 183. 

 Neumayer, 197. 

 Schmidt, 198. 

 AVeber, 195. 

 External meatus, tympanum, and 

 Eustachian tube, to the fii-st 

 visceral cleft, relation of the, 

 111. 

 bibliography, 130. 

 explanation of figures, 132. 

 explanation of letters, 131. 

 historical synopsis. 111. 

 observations and conclusions, 



121. 

 recapitulation, 127. 

 Expansion for 0° Centigrade, prin- 

 cipal argument in terras of 

 the, 454. 

 Eylert, evening observations, 179. 



