274 THE AMERICAN MUSEUM JOURNAL 
the bone layer, where the bones were 
taken up one by one. Part of a second 
summer was required to complete taking 
out this skeleton and the work when 
finished left an excavation in the hill 
thirty feet long, twenty feet wide and 
twenty-five feet deep. Some of the 
sandstone blocks containing the bones 
shipped back to the Museum were of 
huge size; one containing the pelvis 
weighed 4150 pounds and required four 
horses to transport it to the railroad. 
A second skeleton, the one just 
mounted, was found six years later in 
the same Montana bad lands on Big 
Dry Creek. This is considerably more 
complete than the first one. 
Tyrannosaurus is a giant reptile dis- 
tantly related to lizards, crocodiles and 
birds. Its hind legs are formed like 
those of birds and the bones are pneu- 
matic. It was a powerful creature, 
doubtless swift of movement when 
occasion demanded speed, and capable 
of destroying any of the contemporary 
creatures, a king of the period and 
monarch of its race. 
The rear view of the skeleton shows 
the narrow birdlike construction of the 
pelvis, and compact rib-basket, the 
massive proportions of the great hind 
limbs, which bend forward at the knee 
as in birds, instead of outward as in 
crocodiles and lizards. The tail is 
enlarged out of its due proportion by the 
perspective, but its sweeping curves are 
clearly brought out, as well as the slighter 
curves of backbone and neck, all care- 
fully studied for the pose adopted. The 
sudden pause in its forward rush on 
coming close to its crouching enemy is 
well suggested, but the 
attitude could be more 
clearly seen if the out- 
lines of the flesh of the 
body and limbs were 
restored. 
