The ornamental design for a chair, substantially as shown.
FIG. 1 is a front perspective view of a chair embodying my new design;
FIG. 2 is a top plan view of the same;
FIG. 3 is a front elevation thereof;
FIG. 4 is a sectional view taken substantially along line 4-4 of FIG. 3 and
wherein the lower portions of the leg members have been omitted for
convenience of illustration, and
FIG. 5 is a rear elevational view of the chair wherein the leg members have
been foreshortened for convenience of illustration.