Microtome

FIG. 1 is a top, right, front perspective view of a microtome showing our new design; FIG. 2 is a right side view thereof; FIG. 3 is a left side view thereof; FIG. 4 is a front view thereof; FIG. 5 is a rear view thereof; and, FIG. 6 is a top view thereof. The bottom of the microtome forms no part of the claimed design. The broken lines in the figures show portions of the microtome that form no part of the claimed design.