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

The Galleries:

Photo Gallery
Silicon Zoo
Chip Shots
DNA Gallery
Amino Acids
Religion Collection
Cocktail Collection
Screen Savers
Win Wallpaper
Mac Wallpaper
Movie Gallery

Andrew Ross Polarized Monocular Microscope

Crafted in London England by Andrew Ross & Co., this all brass monocular compound polarized light microscope is dated 1839. The model featured below was redrawn from photographs of the original microscope, which is part of the Billings microscope collection at Walter Reed Army Hospital in Washington DC.

Anchored by a solid tripod base, the circular pillar is capped by a compass joint. A Lister triangular limb (measuring 11-inches in length) bridges the body tube, stage, and condenser to the pillar. The microscope does not have a drawtube, and course adjustment is achieved by manipulating a pinion that moves the compound body tube closer or further away from the fixed stage. A short lever-type nosepiece supplies the fine adjustment feature. Two rack and pinion mechanisms furnish the mechanized specimen stage with rectangular motion. The lower portion of the stage is fitted with a breech-lock that is used to attach the condenser. Accessories include an eyepiece, polarizer, analyzer, and a Brooke double nosepiece. The inscription along the base reads, "Andrew Ross & Co., Opticians, 33 Regent St., Piccadilly", a common signature of the period.


Questions or comments? Send us an email.
© 1998-2019 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, Nov 13, 2015 at 01:19 PM
Access Count Since May 29, 2001: 22974
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: