240 Scientific Intelligence. 
by the latter.)—Before coming to Leon we remained six weeks 
in Manaqua studying the language. While there I learned that 
foot-prints had been found on a sandstone at a quarry in the 
a quarter of a mile west of the Plaza. Around the quarry were 
many blocks of sandstone about one cubic foot in size ; these had 
the form of each toe. Most of the tracks were large enough for 
. hi 
Yellowish-brown clay, 14 inches. 
Brown clay, 6 inches. 
Sandstone, 3 layers, 2°3 feet, : 
All the beds are approximately horizontal and of nearly unt 
form thickness. It will be seen from the section that the tracks 
reason for supposing that Lake Manaqua, as well as the lake of : 
ing of a great volcano. i 
2. On the relative ages of certain River-valleys in Lincoln 
shire; by A. J. Juxus-Browne. (Quart. Journ. Geol. Soe.» 
