THE GEOLOGIST. 



JANUARY 1863. 



THE AERONAUTS OF THE SOLENHOEEN AGE. 



At least seven geological ages ago, and there were aeronauts in those 

 days. Not Glaishers and Coxwells, clinging to babbles of gas at six 

 miles high, but reptiles and birds, — the latter at least, and perhaps 

 the former, capable of long and lofty nights. On the red sands of 



Tig. 1. — Front view of cast of brain of Carrion Crow. 



cc, cerebral hemispheres ; m, median line ; oo, olfactory lobes ; oj9, optic lobe ; 

 ss, section of skull; aa, air-cavities. 



Connecticut, perhaps some two or three ages before, wingless birds 

 had left their footprints ; but nor bone nor feather lias the searching 

 eye of man yet looked upon to glean a notion of what those birds 

 were like. Not from all the thick mass of stratified rocks deposited 

 by lake or ocean in the long interval bet ween the period of those im- 

 yol. vr. t> 



