In the center of the unit, a three-square-foot area of yellow sandy material containing chunks of whitewashed plaster, cut nails, window glass, wine bottle fragments, and other late nineteenth- century material was found. This material was also present in an 8-10 inch band along the face of the wall. Large chunks of asphalt paving were also found in this deposit. The deposit extended beneath the bottom of the present wall from a depth of 30-56 inches, at which point sterile dark brown soil was found. Surrounding the yellow sandy intrusion, the gray ashy soil continued to 48 inches before sterile soil was reached. To the east side of the yellow sandy area, the present wall was found to rest directly upon the gray ashy Spanish-period deposit; test probes beneath the bottom of the wall found no evidence of prior wall footings or disturbance of the Spanish levels below the bottom of the present wall at 28 inches. An interesting detail observed in the south wall profile was a remnant of cobblestone paving which appeared to stop just short of the east line of the yellow sandy intrusion.

Unit B (Figure 7)

Unit B, located on the south side of the wall, 15 ft to the east of Unit A (Figure 5), originally measured 4 x 10 ft. Later extensions, designated B-2, B-3, and B4, were added to the south to test an area undisturbed by pipelines.

especially heavy deposit of this plaster debris rested directly upon the sterile soil at the bottom of the unit.

The same yellow sandy band with late- nineteenth-century artifacts was encountered along the north wall of Unit B as was found in Unit A. Also present was a north-south trench containing a five-inch diameter iron pipe, which was excavated from a point just below the first caliche layer beneath the recent fill. The disturbance of this trench was evident in the wall of the excavation and caused considerable mixing of artifacts to a depth of 30 inches. A pipe trench, containing ceramic sewer pipe fragments and excavated from approximately the same level, crossed this excavation unit east to west just inside the north wall. It was filled with the same red-brown fill as found in the trench in Unit A.

In the approximate center of Unit B, directly beneath the red-brown trench fill, was a circular disturbance of roughly 24-inch diameter. This feature was found to be a deep intrusion (the bottom was 59 inches below datum) filled with loose clay loam that contained both cut and wire nails, fragments of wood and mortar, iron hardware pieces and bottle fragments, as well as a few ceramics and handmade brick fragments from the Spanish-period soil which it had penetrated.

The first nine inches, which were not screened, consisted of the same dark gray-brown fill found in Unit A. Just below this was a thin layer of caliche-like material, containing cut nails, which covered the entire unit. The next level was medium-brown soil, below which was a thin layer of caliche which overlay a hard- packed cobblestone pavement similar to the remnant found in Unit A. Beneath this was the same gray, ashy loam containing Spanish-period artifacts which had been observed in Unit A. This gray soil continued downward to sterile dark brown clay at 39 inches, interrupted by several bands of lighter gray soil containing chunks of plaster, charcoal, and bone. An Unit C (Figure 8)

Unit C was a four-foot square against the north wall between Units A and B, five feet east of Unit A (Figure 5). When the gray-brown fill had been removed, it was apparent this area had been disturbed. A layer of loose rocks from 6-12 inches contained both eighteenth- and nineteenth-century artifacts and, at 15 inches, a ceramic sewer pipe was found to run east-west across the center of the unit. Directly beneath this disturbance, at 20 inches, an iron pipe was found to run north-south. At this point, since it appeared that little of the area would be undisturbed, the unit was recorded and refilled.