In addition to the economic and subsistence aspects we now know something concerning the socioreligious patterns as practiced at the Tank Site. Disposal of the dead is expressed in three forms: (1) primary inhumation in the flesh; (2) partial reburials under metates; and (3) fractional burials with interment of leg bones only. This variation in a single site is of interest. Formality appears present only in the first form; here all the bodies were fully extended with the heads orientated toward the south. Other than manos and metates, mortuary offerings were rare. In only one instance (Treganza and Malamud, 1950, burial 3) did we find what could be called a positive artifact association, that of a chert blade and a quartz crystal.
Artifacts of apparent nonutilitarian usage leave us with the convenient, but not to satisfactory, classification of "ceremonial." It is only through inference that we can assume functional use in ceremonies of such objects as cog stones and a variety of stone disks. Since the spindle-shaped charm stone and the stone cogs and disks appear to be nearly mutually exclusive of one another in their distribution between central and southern California, it is not improbable that the latter constitute the "charm-stones" of the south.
Too frequently typological construct and metric measurements lead to sterility of interpretation divorced of any humanistic concept. At one time the Tank Site was occupied by a living culture and to some degree the occupants must have participated in activities other than those surrounding a fulfillment of a food economy. To this point it is difficult to explain large lithic concentrations consisting of unworked stone, broken metates and manos, core tools, and occasional sections of human long bones. Such occurrences are too large and too frequent to have resulted from mere chance, and for this reason we have given them the term "features." The material content of these aggregations suggests refuse dumps of worn out and broken implements, but if so they would collectively have occupied a considerable part of the central living area. Conceivably their central location could suggest some ceremonial involving the concept of a "shrine." That these features could represent some manifestation of the "Annual Mourning Ceremony" seems most dubious. Irrespective of the probability that the Mourning Ceremony is ancient in southern California the differences in cultural inventory and time between the Tank Site and the early and historic phases of the Gabrielino are such that it would be wishful thinking to imply any historical connection.