FIG. 1 is a top view of a cassette for volatile material, in a closed configuration in accordance with the presnt invention;

FIG. 2 is a top view in partial open configuration of the embodiment shown in FIG. 1;

FIG. 3 is a bottom view of an inner portion of the embodiment shown in FIG. 1;

FIG. 4 is an end elevational view of FIG. 3;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a magnification of the surface detail on the upper and lower faces respectively of FIG. 3 and with respect to its positioning as indicated by circle in FIG. 7;

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

FIG. 8 is a top view of an outer portion of the embodiment shown in FIG. 1;

FIG. 9 is an end elevational view of FIG. 8;

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

FIG. 11 is a cross-sectional side view taken along line 11--11 of FIG. 8.