We analyzed the remains of small mammals from two rockshelters in the pre-Andean mountains of central Chile. A significant fraction of the remains exhibited evidence of burning. Burned remains were present from 4460 to 1520 B.P. and belong to rodent species of large body size and weight that are either diurnal or colonial. We suggest that rodents were a constant food item for humans in central Chile, and that rodent species were selected based on body size and conspicuousness.

In a study of Middle Preclassic (Conchas phase) ceramics from the site of La Blanca, Love (1989) derived a sequence of four subphases. Here, the focus is on 431 prismatic obsidian blades excavated from the same deposits in order to discern if patterns of change can be discovered in this lithic industry. For each blade, recorded attributes describe blade dimensions and edge wear, as observed through low-power microscopy. Chronological controls were set by ceramic associations. Through the sequence, blades became smaller and more fragmentary, due, we hypothesized, to an increasing scarcity of obsidian. As predicted from these trends, we found that wear patterns became more pronounced through time, and use of a bipolar technology became increasingly important for removing (rejuvenating) worn lateral edges. A definite obsidian-blade sequence emerged, which was investigated through linear discriminant-function analyses.

En contestación a la nota de Bischof (1991) refutando nuevamente la aseveración de Bonavia (1990), sobre la falsedad de la pintura occidental de felino de Cerro Sechín, el autor se reafirma en su posición presentando la argumentación que considera pertinente para demonstrar lo que él juzga es el error de Bischof.