INDEX. 
59S 
Pa^e 
Camelus Guanaco, Dr Traill's account of the, - 492 
Canal, Ardrossan, notice regsifding the Marine Shells 
found in the line of the, - 56S 
Centronia, description of the genus, » - 314 
Characters, remarks on the specific, of Birds, by Mr Mac-" 
gillivray, 517 ; form and structure of the fea- 
thers more important than the colours, 528 ; 
application of the proposed characters to seve- 
ral genera, 530 ; general observations, 536 
— distinctive, of the two kinds of igneous Rocks, 
those formed below, and those above the wa- 
tef, " - 107 
Chalk Formation, localities of the, in Germany, « gs 
Charianthus, description of the genus, - S27 
Chitonia, description of the genus, - 317 
Clarke, his attempt to reach the Arctic Sea, - 22 
Clay-Slate, improperly named a formation, - 94, 
Clidemia, description of the genus, - - 306 
Clifton-Hall, Fossil Elephant's tusk found near, - 60 
Clunie, Meteorological Journal kept at, - 74 
Coal, found in the bed of the Towa River, in India, 51- — 55 
— , mines of, in a state of combustion, near the Great 
Bear Lake River, - _ 23 
Colymbus Immer, Mr Edmondston's account of, 207; 
Hints regarding some other species of, - 212 
Conostegia, description of the genus, - - 3i6 
Copper Pyrites, on the Crystallization of, by Mr Haid- 
inger, 1 
Corvus, characters proposed by Mr Macgillivray applied 
to the genus, - ^ - 533 
Cremanium, description of the genus, - 311 
CrifF-Fell, Professor Jameson's geognostical description 
of, . - - - 541 
Currents, under, of the ocean, notes regarding, - 170 
