28 THIRD FLOOR 
fastening together the stones of a building are here. They were 
found in the prehistoric ruins of Tiahuanaco, Bolivia. 
In the large case at the south of the east entrance there is a 
series of mummies and mummy-bundles illustrating the burial 
customs of the ancient Peruvians. The next upright 
case contains a unique series of skulls showing the 
various ways of deforming the head practised by the ancient 
Peruvians, and a still more remarkable series of trepanned skulls 
from the same region proving a high degree of surgical skill 
among these ancient people. 
Another case displays the collection of musical instruments 
of the Incas. (Guide Leaflet No. 11 describing this remarkable 
Musical In-S€ries is attached to the case for convenience of refer- 
struments; ence. It may be purchased of the attendant. The 
Pottery. next case contains pottery representations of animals. 
These were made by the ancient Peruvians and illustrate more 
than fifty species. The southwest quarter of the hall contains 
cases illustrating the ethnology of Panama, Brazil and Paraguay. 
At the west end is a collection of prehistoric pottery in exten- 
sive series arranged according to its geographical distribution. 
Mummies. 
The corner hall (No. 301) of the West Wing contains the ex- 
tensive collections made in China with the aid of funds pro- 
‘vided by the Committee on East Asiatic Research. This hall 
is in process of arrangement and is not yet open to the public. 
Return to the East Corridor (No. 305) and descend to the 
floor below. On the walls of the stairway are displayed a series 
of the antlers of several species of Caribou from the northern 
portion of the continent. They are typical of four species. 
