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Credit: "The structure of molecular viruses". Source: Wellcome Collection.
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![MSE Microtomes are highly efficient precision instruments of great rigidity. Their fine workmanship will be found equal to the most exacting demands of modern laboratory practice. Three well-known and thoroughly tried types are available, and delivery times at the moment are unusually favourable. Illus trated is the MSE Rotary Microtome—the ideal instrument for fast, accurate serial sectioning. Fully automatic feed adjustable from 1-25 microns in steps of one micron. Full details of this or the Precision Piano (Base Sledge Type) and Automatic Laboratory Freezing Microtome gladly supplied on request to your laboratory furnisher or direct from the makers : Measuring and Scientific Equipment, Ltd., 14-28 Spenser Street, Westminster, S.W.I. Distributing rights still available in some countries. MSE MAKE THE MOST MODERN TYPES OF LABORATORY CENTRIFUGES TOO. DETAILS ON REQUEST Vol. 161, No. 4085 SATURDAY, FEBRUARY 14, 1948 One Shilling & Sixpence This drawing was ^—- made by kind per- contributions to science mission of the owner, Thos. H. Court, Esq. MICRO SCOPE The original of our illustration is in the Science Museum, South Kensington. It was made by Christopher Cock in London in 1675 i popularizing the ii w. &J. GEORGE] & BECKER ltd 17-29 Hatton WaU, London B.C.I. CHA 6011-4 157 Gt. Charles St., Birmingham 3. CEN 7641-3 Laboratory Furnishers, Manufacturers of Scientific Apparatus, Balances and Weights, suppliers of Chemicals & Analytical Reagents Tinsley a.c. stabilisers A new instrument giving a very stable A.C. output suitable for precision A.C. measurements will shortly be available. OUTPUT—500VA at 230V 50— STABILITY—I part in 10,000 DISTORTION—I % total INPUT—220-240V 50~ H. Tinsley & Co. Ltd., Werndee Hall, London, S.E.25 Telephone : ADDiscombe 1400](https://iiif.wellcomecollection.org/image/b18189313_PP_CRI_H_2_14_0001.jp2/full/800%2C/0/default.jpg)