R. Fuess, Steglitz. 181 



R. Fuess, 

 Steglitz nr. Berlin, 



Diintherstrasse 2/8. 

 (Formerly J. G. Greiner jun. & Geissler.) 



The exhibits are shown in the German University Exhibition. 



I. Mineralogical Division. 



41 Photographs of the principal instruments used in mineralogical 

 research; 3 sets in gilt frames. 



1 large Microscope, Model No. 1. 



Accessories and small auxiliary apparatus adjusted for micro- 

 scope No. 1, mahogany case. 



1 Microscope, Model No. 3. 



1 Microscope, 5. 



1 Adams's Polarizing Apparatus, with goniometer for mea- 

 suring optical axes. 



1 Klein's Reflecting Goniometer. 



1 Universal Heliostat. 



1 Case with set of thin rock sections. 



II. Meteorological Division. 



1 Sprung's and Fuess's Barograph. 



1 Sprung's and Fuess's Anemograph with electrical registering 

 apparatus. 



1 Sprung's and Fuess's Pluviometer, with electrical registering 

 apparatus. 



1 Aspirating Psychrometer according to Prof. Assmann. 

 (Complete equipment for travellers in tropical climates.) 



1 Aspirator for Psychrometers. 



III. Meteorological Instruments for Explorers. 



1 Fortin Barometer for measuring altitudes. 

 1 Hypsometer ., 



1 Assmann's small Aspirator Psychrometer, 

 1 Sling-Thermometer, 



