Simple Dissecting Microscope No. 58a.

No. 58a.Simple Dissecting Microscope, consisting of a wood case with plate glass stage, movable plane mirror, two simple lenses of 4 and 8 times magnification. Price$2.—
No. 58b.The same with metal hand rests, moveable lens-holder and doublet magnifier No. 71, Price$3.50

Demonstration lens-holder No. 59. Focussing-lens No. 60.
Handle No. 61.

No. 59.Demonstration lens-holder, consisting of a hardrubber stage with handle, clamps for holding the preparation in position, and with a moveable lens-holder. Without lens$2.40
No. 60.Focussing lens for photographic camera. Lens in spring-sleeve with clamping ring$4.75
No. 61.Handle with ring for holding lens$1.25