The microscope is supplied with a full compliment
of accessories consisting of two matched pairs of oculars, three
objectives each with a protective cap (2, 1, and 1/4-inch), camera
ludica, analyzer, polarizer, diaphragm wheel, substage stop for use
with opaque objects, parabolic condenser for dark field use,
achromatic condenser, Leiberkuhn reflector, objective adapter, stage
micrometer, stage forceps, live-box, free-standing bullseye
condenser, and a glass trough for use with aquatic specimens.
A full description of the R.
& J. Beck "Popular Model" and the accessories
that were supplied with it are described in Richard Beck's A
Treatise on the Construction, Proper Use, and Capabilities of
Smith, Beck, and Beck's Achromatic Microscopes, 1865
Below is a wood cut showing the laboratory
aboard the HMS Challenger during the famous expedition
that occurred in the years 1872-1876. Note that the microscope
shown at the front right is an example of the Beck Popular
binocular microscope. Most likely, this particular model was
chosen for the expedition due to its portability and its space
saving properties, being able to collapse compactly within its
storage case.
A
short history of the R. & J. Beck firm
