Instruments & Innovation

Two microscopes with choices of various components for complete assembly.

B 5095. Sufficient for most bacteriological, histological, botanical, and zoological investigations.
B 5099. For bacteriological work (equipment…

Two vacuum distillation apparatuses with various components, including distillation flasks, thermometers, heating baths, vacuum tubes, as well as stands and clamps.

Vacuum distillation is a method of distilling at…

Microtomes are used for cutting tissues into extremely thin sections, for preparation of samples in microscopy.

B 2106. Precision apparatus for determining freezing point depression.
B 2107. For determining freezing point depression for clinical purposes.
B 2108. For determining freezing point depression for very small…

Microtomes are used for cutting tissues into extremely thin sections, for preparation of samples in microscopy.

B 5255. Sledge microtome for anatomical and bacteriological work.
B 5261. Microtome with crank for all…

B 2282. Electrometer for radioactive measurements.
B 2285. Fontactoscope, an electroscope for measuring the radioactivity of water and gases.
B 2300. Electrometer with internal amber insulation.

Ernst Leitz Wetzlar electric heating microscope stage warmers.

Polarimeters are used to measure the angle of rotation of a beam of light passing through an optically active substance.

Oil immersion microscopes with various components and of different sizes.

Portable universal respiration apparatus, according to specifications from Professor Francis Gano Benedict.

Microscope with achromatic objectives and Huygens eyepieces. Assembled with the "No. 2b" stand, for medium microscopes with lighting unit.

B 2040. Differential tensimeter.
B 2041. Storage rack with circular section for tensimeter.
B 2052. Stirring device, mechanically operated by clockwork.
B 2057. Reading device for thermometer.
B 2060. Complete apparatus…

Microscope with achromatic objectives. Assembled with the "No. 1" stand, for large microscopes.

B 181. Automatic, for gas heating, coal or wood firing.
B 183. Fully automatic, with copper interior and steam heating.

B 4919. Water sampling apparatus, with bottles and tube for chemical, gas, and bacteriological analysis.
B 4921. For removing river or seawater.
B 4922. Flow-through water sampler suitable for all depths.
B 4923. Winch…

B 185. Combination water distillation unit with drying cabinet and sand bath for gas heating.

Also pictured are evaporating flask and dishes made of glass and metal.

Figure 20. Furnace, Round Iron, very useful.
Figure 21. Furnace, Dr. Black's.
Figure 22. Furnace, on Professor Brande's Principle, made to order, price according to size.
Figure 23. Pair of large Pepy's Copper…