MICROSCOPES—{contd.)

£ s. d.

Zentmeyer Model Microscope—continued.

Built-in mechanical stage with double sliding bar and rotation through 270°, rackwork to rotation, with divisions to 50 on silver, reading by pointer.

Compound rackwork substage with centring screws, rackwork to rotation.

Instrument finished in all bright brass.

Double nose-piece.

Eyepieces, one pair No. x 5, and 2 adapters between standard students size and draw-tube.

Two-lens Abbe condenser, N.A. 1.20, in substage mount with iris diaphragm and stop-carrier.

Wooden case.

Price .. .. .. .. .. .. .. .. .. ..1500

This instrument is not of modern construction, but is in excellent condition, and would be eminently suitable for an amateur who wanted a well-made stand with many refinements.

Student’s Microscope, by Ross, with :—

Rackwork coarse adjustment.

Pillar micrometer screw fine adjustment.

Large square metal stage, vulcanite covered.

Plain tubular understage fitting.

Plane and concave mirrors.

Horseshoe foot.

Eyepieces, x6, x8.

Objectives, Ross 2/3", 1/6".

Beck i/io" immersion with correction collar.

Double nose-piece.

Sleeve-pattern iris diaphragm.

Polished mahogany case.

Price .. .. .. .. .. .. .. .. .. ..900

Wenham Binocular Microscope, finished in bright brass, by Smith and Beck, with :—

Rackwork coarse adjustment.

Nose-piece fine adjustment.

Built-in mechanical stage.

Compound rackwork focussing substage.

Eyepieces, 5, two of them fitted with pointers.

Objectives, \\", 2/3" and 1/5", with correction collar.

Neutral tint reflector, bull’s-eye stand condenser.

Live box, stage forceps, erecting lens, separate draw-tube for use with the instrument as a monocular.

Achromatic condenser, with wheel of diaphragms.

Polariser and analyser.

Mahogany case, with accessories in separate case.

Price .. .. .. .. .. .. .. .. .. ..10100

Microscope, by Crouch. Best Research Model, all-bright finish, with :—

Rackwork coarse adjustment.

Micrometer screw pillar fine adjustment.

Body with rackwork draw-tube, 160-mm. tube length.

Built-in mechanical stage with rotation through 270°, rotation fully divided, centring screws to rotation.

Rackwork focussing substage with centring screws and with provision for moving out of the optic axis.

Plane and concave mirrors.

Modified tripod foot.

Eyepieces, X 6, X 10, Kellner type X 10.

Polariser and analyser.

Low-power dark-ground condenser.

Zeiss clover-leaf triple nose-piece.

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Le texte affiché peut comporter un certain nombre d'erreurs. En effet, le mode texte de ce document a été généré de façon automatique par un programme de reconnaissance optique de caractères (OCR). Le taux de reconnaissance estimé pour cette page est de 98,30 %.

La langue de reconnaissance de l'OCR est l'Anglais.

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