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Abstract
A device for the controlled trimming of plastic specimen blocks for light and electron microscopy is described. Many advantages of previously reported instruments together with 1) a rack and pinion control of knife movement, and 2) a control of rotation of the specimen block at 90°, 180°, 270°, or 360° are incorporated. In conjunction with an ocular micrometer, the device allows accurate removal of thin slices during trimming.