Imperial Physical and Technical Institute. 159 



No. 2810. 



Imperial Physical and Technical Institute. 

 Charlottenburg nr. Berlin. 



I st Department: 25 Marchstr.j 

 II nd Department: 151 Berlinerstr. 



The Imperial Physical and Technical Institute comprises two de- 

 partments. The work of the first or Physical Department consists in 

 such physical researches and measurements which are calculated to lead 

 to the solution of scientific problems of great general importance and 

 which envolve sacrifices exceeding the resources of private individuals 

 or schools. 



The object of the second or Technical Department is twofold, viz 



1. To carry out physical and technical investigations which may 

 from time to time be ordered by the Autorities or which may be cal- 

 culated to promote the manufacture of philosophical instruments or to 

 contribute to the growth of other branches of German industry; 



2. To test and certify graduated instruments and standardizing 

 appliances, provided these do not more properly belong to the 

 Assize Department. 



The following are the exhibits of the Institute: Samples of gra- 

 duated appliances admissible for attestation, thermometers,tuning forks etc. 

 accompanied by their respective certificates. - Samples of materials 

 adapted for fine mechanical and electro-technical art, standard screw 

 threads and tempering colour? insti uments * nd appliances, illustrations, 

 diagrams and publications. 



A detailed description of the exhibits will be found in the Zeit- 

 schrift fur Instrumentenkunde, Berlin, Springer; New York, B. Wester- 

 mann & Co., 1893, 4th number. 



