Their forms of sculpture and writing had changed curiously during the descent, embodying certain apparently chemical coating processes-probably to secure phosphorescence-which the bas-reliefs could not make clear to us.
Beherago joan ahala, haien idazteko eta eskultura egiteko erak aldatu ziren, antza geruza kimiko bat gehitzen baitzieten, seguruenik fosforeszentzia lortzeko; baina behe-erliebeek ez zuten argi uzten.