Microscopy Primer
Light and Color
Microscope Basics
Special Techniques
Digital Imaging
Confocal Microscopy
Live-Cell Imaging
Photomicrography
Microscopy Museum
Virtual Microscopy
Fluorescence
Web Resources
License Info
Image Use
Custom Photos
Partners
Site Info
Contact Us
Publications
Home

The Galleries:

Photo Gallery
Silicon Zoo
Pharmaceuticals
Chip Shots
Phytochemicals
DNA Gallery
Microscapes
Vitamins
Amino Acids
Birthstones
Religion Collection
Pesticides
BeerShots
Cocktail Collection
Screen Savers
Win Wallpaper
Mac Wallpaper
Movie Gallery

Baker Naturalist's Traveling Microscope

Although Charles Baker of London marketed it as the naturalist's traveling microscope in their 1868 catalogue, Mordecai C. Cooke, a famous British mycologist and founding member of the Quekett Microscopical Club, commissioned William Moginie to design this special edition, which became his favorite laboratory instrument. Gerard Turner describes his discovery of the microscope at the Royal Horticultural Society's Garden at Wisley in his book Essays on the History of the Microscope.

Over a 30-year period, Cooke, who often worked in conjunction with a camera lucida, completed about 15,000 drawings of fungi that were examined under this brass, monocular microscope. The instrument is stored under a bell jar with a wooden base and includes a Powell & Lealand 0.25-inch objective, a Hartnack 0.125-inch objective, and a shallow eyepiece with a slot for an ocular micrometer. The illumination system of the microscope features a single, substage concave mirror and an achromatic condenser. The 226-millimeter body tube of the portable instrument is supported by long, folding tripod legs. Mounted on one of the legs is a short bar that carries the pinion for the coarse focus mechanism. A fine focus mechanism is lacking, but inside the body tube is a drawtube.

The rectangular stage of the microscope is very basic, but bears a condenser collar on its underside. Although it is not illustrated here, a rectangular plate that dovetails over the fixed stage can carry accessories, such as a square aperture, a slide support bar, two spring clips, and holes for optional equipment. There is also an insertion hole between the rackwork and the stage for a bull's-eye condenser to be used for illumination of opaque objects. A stage micrometer that consists of a glass slide covered with red paper, divided into tenths of a millimeter, is illustrated above on the wooden stand (beneath the tripod).

J. Newton Tompkins first described this instrument in an 1867 article published in the Journal of the Royal Microscopical Society entitled "On a Travelling Microscope." The popular design was copied by Baker competitors, such as the London firm Watson & Son, and sold as "The Traveller's Microscope" for a little more than 2 pounds. The Wisley Gardens instrument featured here was sold for 10 pounds to the Royal Horticultural Society by Cooke a year before his death in 1914.

BACK TO NINETEENTH CENTURY MICROSCOPES

Questions or comments? Send us an email.
© 1998-2013 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Friday, Aug 01, 2003 at 11:43 AM
Access Count Since March 12, 2003: 15933
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: