114 EXTINCT MONSTERS. 
as large! So this anomalous monster had two sets of brains, one 
in its skull, and the other in the region of its haunches! and 
the latter, in directing the movements of the huge hind limbs and 
I. Fore leg. 2. Hind leg. 
tail, did a large share of the work. The subject is a highly sug- 
gestive one, but at present requires further explanation. 
On the walls of the fossil reptile gallery at South Kensington 
