HARTMAN: ARCHEOLOGICAL RESEARCHES ON THE PACIFIC COAST OF COSTA RICA 47 
ornamented animal head serves as the front leg, extending in a vertical position 
from the front edge of the plate. The hind legs have each two perforations sur- 
rounded by grooves. Length 40 cm., breadth 20 cm., height 14.5 em. The speci- 
men is contained in the National Museum in San José. The locality, probably by 
mistake, is given as Aguas Calientes in the highlands. 
7. (PI. XIX, Fig. 1.) Metate with a large bird head protruding in front, the 
long narrow beak curved and joined to the front leg of the metate. The upper side 
of the plate is adorned with a broad band with a plaited knot design (?) and a nar- 
row band with meander designs at the back. The almost rectangular legs are 
adorned with two parallel grooves along the edges on the outside. The front leg 
has three, each of the hind legs two slits. Length 45 cm., breadth 20 cm., height 
15cm. (National Museum of Costa Rica.) 
8. (Pl. XX, Figs. 1, 2.) Metate in the shape of a bird with crested head. The 
upper side shows as usual a broader band, a plaited or woven design at the front 
end, and a narrower band with meander pattern at the back. The edges of the long 
sides are adorned with two short parallel bands alternately placed horizontally and 
vertically. ‘The legs are covered with simple geometrical designs. The front leg 
has three, each of the hind legs two, longitudinal slits. Length 53.5 em., breadth 
PAaciMem ners ingle ems (@ataiNOms ase: 
9. (PI. XX, Figs. 3, 4.) Metate in the shape of a bird with long curved neck 
and a large beak, the head adorned with three rows of feathers, six in each. On the 
upper side there is a broader field with a plaited design at the front and a narrower 
band with a meander design at the back. The side edges are also adorned with a 
meander design. The under side is plain. The legs are broken, showing longitudi- 
nal slits. Length 55.5 cm., breadth 22 cm. (Cat. No. $232.) 
10. (Pl. XIX, Figs. 2, 3, 4.) Metate with a small rudely designed head of a 
bird (?) protruding from under the edge of the front end. The upper side shows at 
the front a beautiful regularly plaited design. The under side is covered with 
another plaited design, possibly that of a human figure. The legs are without orna- 
ments or perforations. Length 48 cm., breadth 44.5 em., height 13.5 cm. (Cat. 
2438 
No. ENED) 
RUBBERS OR GRINDING-STONES. 
1. Cylindrical Grinding-stones. 
As already mentioned nearly all the grinding-stones, or rubbing-stones for 
metates, which have been found at Las Guacas, are flattened cylindrical and en- 
tirely devoid of ornamentation. Only a single specimen, which was richly sculp- 
