These specula were first exhibited at the annual meeting of “Physicians and Naturalists”, in Vienna on September 20, 1856, by Prof. L.A. Neugebauer, of Warsaw. They consist of four blades, with short, flat handles, all of which fit into each other, and are thus easier to carry than either Sims’ or Ferguson’s models. Constructed of nickel-plated brass, the larger blades marked “12” and the smaller two “4”. VFC.