This is believed to be
the best low priced Microscope ever of offered to the
public, and it may safely be relied upon as capable
of performing all the work required by the young
student in any department of microscopical science.
It is not of course expected that it will bear
comparison with Microscopes of many times its cost,
but it is infinitely superior to the best Microscope
ever constructed on the old (non-achromatic) plan.
The simplicity of its construction, and the facility
with which all those adjustments may be made that are
required for the purposes it is intended to fulfill,
constitute with its low price, a great recommendation
to those who value a microscope rather as a means of
interesting recreation for themselves, or of
cultivating a taste for the study of nature, and a
habit of correct observation in the young, than as an
instrument of scientific research.
The stand is entirely
of brass, of handsome proportions, and well finished;
The compound body is mounted upon a double axis
joint, allowing the instrument to be inclined at any
angle convenient to the observer, with quick rack
adjustment and fine screw adjustment for focus,
sliding object-holder, plane and concave mirrors,
Wheel of diaphragms, and the following
2 Eye Pieces.
1 Achromatic Objective,
1 inch focus, power 40 to 100 diameters.
1/4 do. do.
120 to 180 do.
1 Condensing Lens, on
separate stands tweezers, forceps, animalcule cage,
knife and needles, thin glass and slides for mounting
The whole packed In
polished upright mahogany case with drawer.
1670. The same with
additional object glass; power 600 diameters. . . $45
1671. The same with
addition of Polaroscope. . . $45 00
1672. The same as 1669,
with addition of Mechanical Stage. . . $45 00
The Queen "Educational
Microscope" is based on the Society of Arts pattern
microscope first introduced in 1855 when the
Royal Society of Arts awarded its prize to English
optician firm of Robert Field & Son for the
design of an inexpensive microscope. It became a very
popular model and was sold by many firms. It is
certainly possible that this Queen microscope is an