CONTENTS. 



Bigelow — On Atmospheric Waves from West to East along the 



Great Lakes 185 



Engelmann, G. — Meteorological Tables for 1860 and 1861 68 



" Difference of Temperature and Relative Humid- 

 ity in City and Country 70 



« Fall of Rain and Snow from 1839 to 1861 75 



" Stage of the Mississippi River at St. Louis in 1861, 79 



« Meteorological Table for 1862 119 



" Altitude of Pike's Peak and other points 126 



" Remarks on Nelumbeiim luteum 136 



" On two species of Fungi destructive to Vine- 

 yards 165 



" On the nature of the Pulp of the Cactus fruit . . . 166 



" Annual Report as President for the year 1861. . . 171 



" On the dimorphism of Draba brachycarpa 154 



« Observations on Thunderstorms 153, 157 



" On the Structure of the Fruit and Seed of the 



genus Hibes 180 



" On a remarkable Snowstorm. ... , 187 



« Annual Report as President for the year 1862. . . 194 



" Additions to the Cactus-Flora of the U. States, 197 



" On a New Species of Pine {Pinus aristata) and 



some other Pines of the Rocky Mountains. . . . 205 



" New Species of Gentiana 214 



Engelmann, Henry — Topaz in Utah 114 



« On the Lower Carboniferous System of 



Southern Illinois 188 



Holmes — Notice of Haidinger's Theory of Meteorites 176 



Parry— Ascent of Pike's Peak 120 



Prout — Annual Report as President for the year 1860 145 



Shumard — New Fossils from the Primordial Zone of Wisconsin 



and Missouri 101 



" Descriptions of New Palaeozoic Fossils 108 



" Dicotyledonous Leaves in Cretaceous Strata of Texas. . 140 



" Vertical Section of Silurian Strata 155 



" Notice of a (supposed) Meteorite 183 



Swallow — Descriptions of New Fossils 81 



Warren, Lieut. G. K. — On the Elevation of Low-water Mark at 



New Orleans above the Gulf 144 



Wislizenus — On Atmospheric Electricity 3, 115 



" Meteorological Observations in 1861 10 



" On the Array Worm {Bvmbgx gram in is) 159 



Journal of Proceedings 134-196 



