Browsing by Author "Adams, George."
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Item 1.010(2012-02-07) Adams, George.The Cuff-type instrument is attached to the box-foot by a square pillar, which supports the body-tube, stage and the mirror. Focusing is by rackwork that moves the stage. The drawer includes accessories (objective lenses, Lieberkuhn reflector, fish plate, stage forceps, and brass slider.) The whole instrument fits into a pyramid-shaped mahogany case upon removing the body-tube. The instrument is very similar to the "Improved Double and Single Microscope," featured in Adams' Essays on the Microscope (1787). Signed: G. Adams No 60 Fleet Street London.Item 1.011(2012-02-07) Adams, George.This unsigned, brass instrument is very similar to the "Improved Compound Microscope" shown in Adams' Essays on the Microscope (1787). The folding tripod base supports the round, tapered pillar. The round limb, attached to the pillar by a compass joint, holds the platform fitted with a spring stage and the arm, supporting the body-tube. A swinging mirror slides along the square-section bar attached to the limb. The instrument fits into a wooden case, and no accessories are present, except an ivory slider. It is possible that this is a German copy of the Adams model, as the construction of the box, lined with olive green woolen cloth and mahogany inlaids, appears different from the boxes of English instruments.