Microscopes and Accessory Apparatus: Catalogue No. 40 - Ernst Leitz

No. 168.	Microscope for the accurate reading of thermometer scales, after Fridtjof Nansen. Stand with spring-clamp to attach thermometers of various sizes. With micrometer ocular and objective magnifying 12 times	$20.—
No. 169.	Saccharimeter, Mitscherlich's (improved form), for determining the amount of sugar contained in liquids, glucose etc. by measuring the angle of rotation. Tube with concave mirror on stand, graduated scale with vernier and lens for reading one-tenth of a degree of rotation. The rotation of the Nicol prism with the vernier is performed by means of an endless screw. The adjustment is accomplished as soon as the two squares of the divided quartz-plate show the same color. Two tubes of 100 and 200 mm length, for the liquid to be examined, are supplied with the apparatus. Should the rotation of the substance examined be excessive, it is necessary to use sodium light for illumination	$52.—

No. 170.	Case, containing a razor, spatula, two small knives, straight and curved scissors, forceps, two needles, two lancet-shaped needles	$5.50
No. 171.	Case, containing a razor, spatula, a small knife, two needles, small scissors, and forceps	$4.—
No. 172.	Case, containing a small knife, small scissors, forceps and two needles	$2.50
No. 173.	Botanical Outfit in case, containing a small knife, forceps, self-closing forceps with horn handle, two scissors, two needles and two lenses	$5.50
No. 174.	Outfit for Sputum Examinations, after Kaatzer, consisting of a platinum needle, blower, cover-glass forceps, and a small rubber plate	$4.75
No. 175.	Leather Microscope case to protect the mahogany case when travelling	$8.—
No. 176.	Leather case to protect the mahogany cases of larger size instruments	$12.—
No. 177.	Bell jar for covering microscope	$2.—

Any of the following publications will be sent on application:

1. Catalogue of microscopes etc., which has been issued in three editions, viz. in