‘CONTENTS OF VOLUME IIL 
NUMBER XL 
Arr. I,—On Alpine Geology; by T. Srerry Hunt, ----..--- 
arte. Note on the Genus Pr gene te ei 
a 
TV, wg a cae Species of Fossil from the Lower Silurian ; My 
‘ AMES UcGens cic tee es 
V.—Glacial Action on Mount Katahdi in; by Joun DeLasxt,- 27 
VI—Table for the computation of Relative Altitudes ; by 
OLRV NL Ag Bee ee ieee reuee ces 31 
VIL—On the relative proportion of Iron and Sulphur in the 
“ Pyrite’ tained in several specimens of Iowa Coal; 
: Occur 
Sulphide; by Giwzon E. Moors, --.-----.------------ 3 
TX.—Norian Rocks in New Hampshire ; by ©. H. Hrrencock, 43 
X.—Contributions eet the Laboratory of the Sheffield Scientific 
School. No. XXII.—On the Composition of the Labra- 
K 
dorite rocks of Waterville, N. H.; by E. 8. Dawa,---- . 48 
XIL—Recent German Arctic Explorations, eae i once eek 50 
SCIENTIFIC INTELLIGENCE, 
Chantry moar —On a new method of nickel-plating, 54.—On the direct 
oxidation eeters to mellitic warn 55.—Gmelin-Kraut, tEimdbach der Chemie: 
Neues ar aarti 9 der Chem 
Geology and Natural History.—Dise sao of a remarkable Fossil Bird, 0. C. Marsu, 
56.—Oceurrence of Diamonds in "anthophyllite, P. VON JEREMEJEW : Triassic 
0 
o um) 
Oth Parallel; Botany, 6 be Oliver’s Flora o' at 
~~ i eens. Die ices Flora der Lemp yy iae .—On K sas Vertebrate 
onomy. 
Uclipse : need Maps, E. S. Marry, 68.—The Wisconsin Uciowvite, am i LAPHAM: 
New Comet: Magnetometer Indications on September 7th, C. A. Youne, 69.— 
The first Alias to the Washington Observations for 1869, 70.—Annals of 
he Dudley Observatory, Vol. L.: Astronomische Age - In und Formeln: The 
Miscellaneous ligence.—Masses of ua tere on, 71.—On the Phos- 
phorescence of the Eggs of the common Glow: UssET: Coast vada 
Deep-Sea Dredging ge me 73.—Jay’s Cabinet ie the 74,— Obitua 
Ohates Babbage, T4. —Reyv. J. A. Swan. si 
Chemistry, 78.—An Siecentacs Tre atise on Heat: A Treatise npon Terrestrial 
Magnetism: Sur les Tremblements de terre et les éruptions voleaniques dans 
