82 MEMOIRS OF THE CARNEGIE MUSEUM 
cylindrical perforation passing through from one end to the other. Most of the 
tubes are almost perfectly cylindrical, as shown on P]. XLII, Figs. 28, 24; others 
are cylindrical but tapering towards the ends, as shown on P]. XLII, Fig. 27; while 
a few show somewhat flattened sides, as shown on P]. XLII, Fig. 22, and still others 
are perfectly square in section as on Pl]. XLII, Fig. 26. A few are encircled with 
raised bands and contracted at their ends, as illustrated on Pl. XLII, Fig. 21. Most 
of the tubes are of stones of beautiful color and highly polished. 
Cylindrical tube of serpentine with a band incision at each end. Length 25.5 
em., thickness 2em. PI. NO ore 2 omen (Catee NOs recone) 
Cylindrical tube of serpentine, ornamented with encircling incisions near each 
end. Length 28.4 cm., diameter 2.5 cm. Pl. XLII, Fig. 24. (Cat. No. 2333.) 
Cylindrical tube of bowenite, somewhat curved and ornamented with encircling 
incisions near each end. Length 5.3 cm., diameter 1.5 em. PI. XLII, Fig. 25 
(Cats Now 235.) 
Quadrangular tube of mottled greenish stone. Length 17.7 em., thickness 1.6. 
em. Pl. XLII, Fig. 26.” (Cat. No. 22332) 
Cylindrical tube of serpentine with an elevated band ornament encircling each 
end. Length 18.7 em., diameter 1.8 em. Pl. XLII, Fig. 27. (Cat. No. 4733) 
4. Bgrans. 
These served for necklaces. They are all sizes and shapes: flat-cylindrical, 
round, tubular and olive-shaped. The flat-cylindrical are usually the smallest, and 
the only ones which seem to have been manufactured in any number large enough 
to have served for necklaces. Most of the other beads, to judge from my own finds, 
and the information obtained from the most experienced grave-plunderers of Nicoya, 
occur very sparingly, only one or two or a very few being met with to a skeleton. 
They, on account of their high value and scarcity, were perhaps used as pendants 
on necklaces, which may have consisted of shells, seeds, wood or other perishable 
material. All the characteristic forms of beads of Las Guacas have been figured in 
the previous text in the description of my own excavations on the spot. The very 
large, clumsy beads of olive-shape are peculiar, some apparently being pebbles 
which still retain their irregular form. 
Small oblong, ring-shaped bead of bowenite(?). Length 1.6 em., breadth 1.2 
em. Pl]. XLII, Fig. 15. (Cat. No. 3438. 
Globular bead of quartz. Diameter 1.6 em. Pl. XLII, Fig. 16. (Cat. No. 
2939 
1606") 
Flat-cylindrical beal of bowenite. Diameter 1.5 em. (The writer's excavations 
at Las Guacas.) PI. XLII, Fig. 28. (Cat. No. 23°32.) 
