GENERAL INDEX. 



601 



Mamillaria barbata, 201. 

 bicolor, 202. 

 papyracantha, 202. 

 recurvispina, 202. 

 vivipara, 107. 

 Man and mastodon, 567. 

 Manicaria saecifera, 265. 

 Matter and force, thoughts on, 209 

 Meteors, observations of, 561, 577. 

 Meteorology, of 1861, 16, 66, 69. 

 of 1839 to 1861, 77. 

 in 1862, 187, 119. 

 in 1863, 297. 

 in 1864, 298. 

 in 1865, 419. 

 in 1838 to 1865, 266. 

 in 1866, 505. 

 in 1867, 506. 

 effect of, on cholera, 560 

 Meteoric iron, 150, 183. 

 Meteorites, theory of, 176. 

 Mississippi, stage of river in 1861, 79. 

 mean of, 422. 

 rise and fall of, 1861 to 



1864, 298. 

 variations of, at St. Louis, 



420. 

 water of, 549. 

 Mound, Big, of 8t. Louis, 568. 

 Murchisonia carinifera, 106. 

 Ozarkensis, 106. 



Natica Chesterensis, 100. 

 Nebraska, Dyas in, 562. 

 Nelumbium luteum, 136. 

 Nuphar polysepalum, n. sp., 282. 

 Nymphaea tuberosa, 548. 



Opossum, gestation of, 224. 

 Opuntia fragilis, 200. 



hystericina, 200. 



Missouriensis, 200. 



pes-corvi, 204. 



pulchella, 201. 



sphaarocarpa, 199. 

 Orthis Clarkensis, 81. 



Cooperensis, 82. 

 Orthisina oecklentalis, 82. 

 Othoceras Chesterense, 98. 

 Ozarkense, 107. 

 Ozone, observations of, 417, 548. 



Palaeozoic fossils, catalogue of, 334. 

 descriptions of new 

 species of, 81,101, 

 108, 408, 410. 

 Pecten Broadhcadii, 97. 

 Penstemon alpinus, 123. 

 glaucus, 123. 

 Torreyi, 121. 

 Pentremites Missouriensis, 81. 



Permian formation in Kansas, 507. 

 l'icea Engelmanni, 212. 



Menziesii, 214. 

 Pike's Peak, altitude of, 126. 

 ascent of, 120. 

 summit of, 125. 

 vertical range of trees 

 on, 122. 

 Pinna Missouriensis, 97. 

 Pinus albicaulis, 209. 



aristata, 122 ; n. sp. 205, 537. 

 .contorta, 122. 

 edulis, 112. 

 flexilis, 121, 208. 

 ponderosa, 121. 

 Pleurotomaria (?) Chesterensis, 99. 

 trochiformis, 99. 

 Pollen of pines carried by winds, 576. 

 Polypora imbricata, 412. 



rigida, 412. 

 Primordial zone, new fossils of, 101 

 Proceedings, journal of, 134, 220, 544. 

 Productus Americanus, 91. 

 auriculatus, 92. 

 corseformis, 94. 

 depressus, 93. 

 Fentonensis, 93. 

 gradatus, 93. 

 Proetus Proutii, 110. 

 Ptilodictya variabilis, 413. 



Pain, fall of, 75, 77, 266. 



in relation to electricity, 117, 

 528. 



Rapbistoma subplana, 106. 

 Retepora Hamiltonensis, 412. 

 Ribes, structure of fruit and seed of 



180. 

 Rocky Mrs., alpine flora of, 536, 539. 

 altitudes of, 133, 285. 

 physiography of, 272. 

 true timber line of, 538. 

 temperature of, 226. 

 snow accumulations in, 

 532. 

 Rhynconella arctirostrata, 84. 

 perrostellata, 85. 

 Resolutions, on decease of Dr. H. A. 

 Prout, 178. 

 donating dupli ca te s , 558 

 relating to the McDow- 

 ell collection, 193. 

 Rubus deliciosus, 121. 



Salix reticulata. 538. 



Salt, deposit of, in Louisiana, 250. 



analysis of, ->>~ ■ 

 Silurian strata, vertical .-. ction of, 156 

 Skulls from ancient mound in Ar- 

 kansas, 585. 

 Snow, accumulations of, in the Rocky 

 Mts., 532. 



