66 F. W. Schieck, Berlin. George Schmidt & v. d. Eltz, Schmiedefeld. 



No. 2782. 



P. W. Schieck, Berlin SW. 



14 Halle'sche Strasse. 

 Optical Works. 



Microscope Works, established in 1819 by the father of the- 

 present head of the firm. 



15 Gold and other Medals. 



Exhibits : 



1. New large Microscope with specially large field of 60 to- 

 90 cm apparent diameter; so-called Entomological Microscope. It permits, 

 with magnifications of 300 500, of small insects being viewed in their 

 entirety. 



2. New Revolving Trichinoscope with mechanical stage; with 

 circular object-slides, which may be rotated by means of an endless screw. 

 This microscope has been specially constructed for the examination of meat. 



3. A collection of Student's School and Pocket Microscopes.. 



4. Microscopical Preparations and Accessories. 



No. 2783. 



George Schmidt & v. d. Eltz, Schmiedefeld. 



(Thuringia.) 

 Wholesale Manufacturers 



of Standard Thermometers and Hydrometers. 



All kinds of Chemical and Scientific Glass Instruments and 

 Apparatus. 



Specialities : Thermometers and Hydrometers of all kinds, Graduat- 

 ed Glass Instruments, blow pipe made Glass Apparatus, G-eissler's- 

 Vacuum Tubes, Radiometers etc.; etc. 



