104 THE INSCRIPTIONS AT COPAN. 
In figure 19 is shown a cross-section of this mound as well as of Stela 7, 
its foundation-stone, and the chamber beneath. Referring to this diagram, 
it will be seen that the surface soil (figure 19, a) is a black humus 12.5 cm. 
deep, below which is a stratum of small fragments of volcanic tuff mixed with — 
occasional larger pieces, light green in color and 12.5 cm. deep (figure 19, D). 


Boltom of glyph panel 
Centimeters 
Scale | ! 
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Level of ground 
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FOUNDATION STONE 

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CHAMBER 

WALL WALL 

Fic. 19.— North and south cross-section through Stela 7 showing foundation-stone, cruciform chamber, and 
composition of mound upon which Stela 7 was erected: a, humus, 12.5 cm.; }, small fragments of volcanic 
tuff with occasional larger pieces, light-green in color, 12.5 cm.; c, pavement of hard lime-plaster, 5 cm.; 
d, same as stratum }, 10 cm.; e, coarse gravel, pink in color, 10 cm.; f, second pavement of hard lime-plaster, 
2.5 cm.; g, same as strata b and d, 10 cm.; h, undisturbed earth, thick, pasty, black-brown clay, generally 
free from rocks, 18 cm. verging into 1, thickly interspersed with pieces of volcanic tuff, light-green, red, brown, 
and yellow in color to bottom of excavations. 
This latter stratum rests on a pavement of hard white lime-plaster 5 cm. 
thick (figure 19, c), which extends throughout the entire mound and which 
is exceedingly durable and resistant. This is shown by the line xxxx in 
figure 18. Below this is a stratum of small broken pieces of the same 
material as stratum J, 1. ¢., volcanic tuff of a light green color (figure 19, d), 
also 10 cm. thick; and below this is a stratum of coarse pinkish gravel 
(figure 19, ¢) 10 cm. thick. 
Next comes a second pavement of white lime-plaster (figure 19, f) 2.5 
cm. deep. This again is very hard, but extends over less ground than the 
upper pavement. [xcavations at d, figure 18, 8 meters north of the south- 
