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Description of basic principles of phase-contrast by transmitted light. - Labelled diagram of the Watson phase-contrast apparatus. - ... Description of principles of the Watson phase-contrast apparatus. - Description of the Watson phase-contast apparatus,

Watson and Son Ltd. Class. surveying; military;. Earliest Date. Jan. 1, 1940. ... Inscription. ‘PLOTTER, FIELD MK IV. W. WATSON & SON LTD. No 9233 1940’ (signed).

Maker. W. Watson & Sons Ltd. Title. 1936 Microscopes : "Service" "Bactil" "Kima" Universal Binocular. ... Description. A booklet for W.Watson & Sons microscopes from 1936. Shelfmark.

Login. Accession No. 3928. Brief Description. mounted and framed print of Thomas Phelps and John Bartlett at work in Sherburn Castle Observatory, by James Watson, English, 1776. ... Dimensions. 460 x 310mm (including frame). Special Collection. Provenance

Maker. W. Watson & Sons Ltd. Title. Catalogue of Microscopes and Accessories. ... Watson & Sons from 1913. Shelfmark.

Login. Shelfmark. Wts.68. Maker. W. Watson & Sons Ltd. Subjects. Microscopy; microscopes; microscope accessories; philatelic microscope. ... Description. A leaflet for W. Watson & Sons' new microscope for philately.

Maker. W. Watson & Sons. Title. Second-hand microscopes and accessories, et cetera [facsimile]. ... Maker. W. Watson & Sons. Title. Radiometer holder [facsimile]. Description. The catalogue entry begins with a short description of how the radiometer works

Login. Shelfmark. Wts.83. Maker. W. Watson & Sons Ltd. Subjects. Astronomical apparatus; telescopes; telescopic accessories; equatorial mounts. ... Description. A leaflet for equatorial mounts for telescopes from W. Watson & Sons.

Login. Shelfmark. Wts.67. Maker. W. Watson & Sons Ltd. Subjects. Microscopy; microscopes; Service microscope; Bactil microscope; Kima microscope; universal binocular microscope. ... Title. 1936 Microscopes : "Service" "Bactil" "Kima" Universal Binocular.

Maker. W. Watson and Sons. Title. Electro-Therapeutical Apparatus: A Descriptive and Illustrated Price List of Apparatus for Radiography, Radioscopy, Radiotherapy, High Frequency, Static and Sinusoidal Currents, Electrolysis, Galvanism, Faradism,