Table 3 below gives the average result of many soundings off the Santa
Cruz:--
TABLE 3.

Under two miles from the shore, many of the pebbles were of large size,
mingled with some small ones.

Column 1. Distance in miles from the shore.

Column 2. Depth in fathoms.

Column 3. Size of Pebbles.

1. 2. 3.

3 to 4 11 to 12 As large as walnuts; mingled in every case with
some smaller ones.

6 to 7 17 to 19 As large as hazel-nuts.

10 to 11 23 to 25 From three- to four-tenths of an inch in diameter.

12 30 to 40 Two-tenths of an inch.

22 to 150 45 to 65 One-tenth of an inch, to the finest sand.

I particularly attended to the size of the pebbles on the 355 feet Santa
Cruz plain, and I noticed that on the summit-edge of the present sea cliffs
many were as large as half a man's head; and in crossing from these cliffs
to the foot of the next highest escarpment, a distance of six miles, I