An arrangement devised by the late Mr. Quekett, for a dissecting microscope, represented, is one of value and convenience.

The dissecting microscope is made by Mr. Ladd of Beck Street, and is furnished by him with three magnifiers, namely, an inch, and half-inch, ordinary lenses, and a quarter-inch Coddington; these will be found to be the powers most useful for the purposes to which this instrument is specially adapted.

The lenses mirror, condenser, vertical stem, all fit into hollows cut for their reception on the under side of the stage, and are then covered and kept in place by the side flaps: so that, when packed together, and the flaps kept secure by an India rubber band, the instrument is very conveniently portable.

The size and firmness of the stage afford great facilities for dissection, and other scientific investigations.