Notice of Hayden's Geological Essays. 53 
hydrogen gas, proceeding from the decomposition of water, 
for the gas, We have not mentioned carbonic acid gis, 
which might be evolved by many agencies, because itis ab- 
sorbable by water, especially when aided by pressure. Al- 
rtia 
ft a 
lace,—t | 
sinetinde Sb 
ga 
and deeply interesting proofs, by which, in our 
+ 
, attended by sweeping cur- 
of animal and vegetable - 
; SR Es 3 
oe 
+t 
ie ae 
* yes a5: ne hg 
violent prevalence of a deluge. 
weak aie 2s See 2 ee ee pbs eg 6 
ef ae eUrICn Be quant 
ay 
e e Asiatic elephant, and of 
only with the e1 an, anc ‘st fon 
t The trees are in many it ances below Ic 
Huish lay or mud resembling ses bottom. 
