No. 2580 Baby London Microscope. 
The Baby London microscope is an ideal instrument for those who study nature, pond life, etc, 
It can readily be carried in the pocket and is so easily set up that examinations can be made in 
the field with the greatest ease. It is also most useful to medical men for the carrying out of 
cursory examinations. 
It is extremely portable, and yet forms a complete and efficient microscope. It uses 
standard object glasses and eyepieces of all powers. All the necessary adjustments are provided, 
including sliding coarse adjustment and fine adjustment. There is a drawtube giving a varying tube 
length up to 160mm, The case in which it is contained measures 5} in. by 2} in. by 2 in. 
A complete range of accessories including substage 
condensers is supplied. The mirror usually supplied with 
the microscope is concave, but when the instrument is fitted 
with a substage condenser, a flat mirror is provided. This 
can be supplied in place of the concave or as an extra, the 
mirrors being interchangeable in the fitting which carries 
them. 
To enable substage apparatus to be used a tubular fitting is supplied which screws into a 
thread in the stage. Two forms of substage condensers are supplied, the Abbe with iris 
diaphragm, and a combined condenser and spot lens. The latter is suitable for both transparent 
and dark ground illumination with low power object glasses. In order to obtain dark ground 
illumination with this condenser, a central patch stop which is attached to an arm is swung into 
position, thus an object can be easily viewed with transparent or dark ground illumination by merely 
swinging the stop in or out of position. 
The polariser of the polarising apparatus also fits into the tubular substage fitting, the analyser 
fitting over the eyepiece. 
For holding unmounted objects, there are supplied stage forceps and the cork object holder. 
The latter is suitable for examining fairly large flies, beetles, leaves, etc., the objects being attached 
to the cork by means of entomological pins. Both of these pieces of apparatus have rotating motions 
so that the object under examination can be viewed from every aspect. 
No. 2580. Stand only, in case... ee ae oe ae ee bas Sa 3 00 
No. 2580A. Baby London microscope, with 1 eyepiece oe 10) and § in. object glass 
in case = wid “i sie ae 4 4 0 
No. 2583 Substage tube Bis 0 2 50 
No. 2584 Abbe condenser with iris capes ede 0 
No. 2585 — Spot lens and condenser sae Leo 0 
No. 2586 _ Polarising apparatus... Shy ae 
No. 2587 Extra flat mirror 0 53-0 
No. 2588 _ Bull’s eye condenser on send OPTI G 
No. 2589 Stage forceps.. 0! 556 
No. 2590 Cork object holder sh os, 0 3 6 
Extra eyepieces, object glasses, etc., at listed prices. 
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