The microscope in theory and practice / translated from the German of Carl Naegeli and S. Schwendener.

Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: The microscope in theory and practice / translated from the German of Carl Naegeli and S. Schwendener. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    JAMES SWIFT & SON, OPTICIANS, UNIVERSITY OPTICAL WORKS, 81, TotteDham Court Road, LONDON, W. SEVEN GOLD MEDALS AWARDED. DIPLOMA OF HONOUR, 1884. Extract from the British Medical Journal, August 27th, 1887. —Messrs. Swift & Son exhibited a Microscope (as shown in illustration) at a Meeting of the British Medical Association, Dublin, with many improvements suggested by Professor Crook- shank. It is intended especially for bacteriological research, and comJ>ctes very favourably with any 0/ the /oreign Micro- scopes, and is believed to be far superior to anything made for the price in England. It has a high angle sub- stage condenser, with contrivances for accurate centering, and for the insertion of stops without removal. The focus of the condenser can be accurately adjusted by a ' rack and pinion movement, this being found a matter of great importance when moderately low powers are being used. The stage Ls cut open in the centre with the object of allowing the slide to be removed more easily, and the stand is finished in the excellent manner for which Messrs. Swift are well known. Its price, with two eye-pieces, two objectives—i-inch and 1', oil immer- sion—double nose-piece and Abbe Con- denser, is jQzt. The oil immersion objective is remarkable for its powers of definition ; it has been tested against many of Leitz's and Reich art's, wiiich hitherto have ), been the cheapest glasses obtainable, ^ and has been found superior to them This is high praise, a.s the price of the three is the same, namely, £s 5s. The fine adjust- ment of this Micro- scope is fitted with Swift & Son's patent lever ar- rangement, or can, if preferred, be fitted with a dif- ferential screw. For high-class work, Messrs. Swift & Son would recommend Mr. Mayall's (jun.) mechanical stage, which can at once be adapted to this Microscope with- out alteration, and readily removed when not required. Price £2 15s. Microscopes from £j 10s. to p^/jo. Ilhistraled Catalogue free for slamp.