222 FIELD CoLuMBIAN MusEUuM—ANTHROPOLOGY, VOL. II. 
EDIFICE No.7. 
This edifice is on the main terrace, about go feet eastward of the 
Palace, and is intimately connected with that structure, as shown in 
the plan, Pl. XXVI. 
When first examined all that could be noted of this ruin was a 
platform having upon its eastern edge a high, featureless mound. 
Excavation gradually developed the outline of a walled structure, 
one-storied and single-chambered, raised on a terrace 30 feet high 
and facing an enclosed courtyard. It communicated by stone stair- 
ways of various dimensions with the terrace facing it. (See Pl. XX.) 
During the excavation of this ruin, fragments of incense-burners, 
potsherds and various objects of hard-burned clay were found. The 
material of the mound consists of a filling of large field stones, aver- 
aging a foot in diameter, surrounded by a mortar facing. The ter- 
race upon which the substructure rests seems to be entirely artificial. 
Often the ancient builders took advantage of a natural elevation to 
aid them in the construction of a mound. I have often found a good- 
sized hill scaled down, cut into and built up in such a manner that it 
had all the appearance of an entirely artificial mound, 
EDIFICES No. 8, No. 9 AND No. 10. 
Five hundred and twenty feet west of the principal structure. of 
‘ this group, is a group of three mounds that excavation shows to have 
been true edifices, but now reduced by time or other destructive 
agencies to formless masses of ruins. They do not appear in the 
general plan, but ground plans are given in Figs. 25, 26 and 27. 
The structures thus briefly referred to are such as were originally 
exposed to view, or have been brought to light by means of the pick 
and shovel. Between and surrounding these lie many terraces and 
mounds, some detached and some in groups. They are rarely sym- 
metrical. Often they seem to be an agglomeration of terraces of 
different levels, built and added to as additional room was called for. 
To describe these would be a useless labor. The accompanying plans 
are sufficient. 
EXCAVATIONS (EDIFICE No. 8).—Edifice No. 8 (Fig. 25) appeared at 
first glance to be simply an ordinary mound, so utterly was it ruined. 
