Hydrometer, from the portable laboratory owned by Dr. H.G Butterfield, unsigned, 1930-1940 Hydrometer, from the portable laboratory owned by Dr. H.G Butterfield
Apparatus for rapid inspection of sections made for C.S. Hallpike at the Middlesex Hospital, London, in 1958, containing a low-power binocular microscope no.343077 with twin objectives and twin 10x eyepieces by E. Leitz, Wetzlar, and a high-power microscope with three objectives by C. Baker, London, and a binocular head, no.189887, with twin 6x eyepieces by E. Leitz, Wetzlar Apparatus for rapid inspection of sections made for C.S. Hallpike at the Middlesex Hospital