FIG. 1 is a perspective view of a first embodiment of the wall block of my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a sectional view taken along the line 6--6 of FIG. 2;

FIG. 7 is a sectional view taken along the line 7--7 of FIG. 3;

FIG. 8 is a perspective view of a second embodiment of the wall block of my new design;

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a bottom view of FIG. 8;

FIG. 11 is a front view of FIG. 8;

FIG. 12 is a rear view of FIG. 8;

FIG. 13 is a sectional view taken along the line 13--13 of FIG. 9;

FIG. 14 is a sectional view taken along the line 14--14 of FIG. 10;

FIG. 15 is a third embodiment of the wall block of my new design;

FIG. 16 is a top view of FIG. 15;

FIG. 17 is a bottom view of FIG. 15;

FIG. 18 is a front view of FIG. 15;

FIG. 19 is a rear view of FIG. 15;

FIG. 20 is a sectional view taken along the line 20--20 of FIG. 16;

FIG. 21 is a sectional view taken along the line 21--21 of FIG. 17;

FIG. 22 is a fourth embodiment of the wall block of my new design;

FIG. 23 is a top view of FIG. 22;

FIG. 24 is a bottom view of FIG. 22;

FIG. 25 is a front elevational view of FIG. 23;

FIG. 26 is a rear view of FIG. 22;

FIG. 27 is a sectional view taken along the line 27--27 of FIG. 23;

FIG. 28 is a sectional view taken along the line 28--28 of FIG. 24;

FIG. 29 is a fifth embodiment of the wall block of my new design;

FIG. 30 is a top view of FIG. 29;

FIG. 31 is a bottom view of FIG. 29;

FIG. 32 is a front view of FIG. 29;

FIG. 33 is a rear view of FIG. 29;

FIG. 34 is a sectional view taken along the line 34--34 of FIG. 30;

FIG. 35 is a sectional view taken along the line 35--35 of FIG. 31;

FIG. 36 is a sixth embodiment of the wall block of my new design;

FIG. 37 is a top view of FIG. 36;

FIG. 38 is a bottom view of FIG. 36;

FIG. 39 is a front view of FIG. 36;

FIG. 40 is a rear view of FIG. 36;

FIG. 41 is a sectional view taken along the line 41--41 of FIG. 37; and

FIG. 42 is a sectional view taken along the line 42--42 of FIG. 38.