Testimonials. Experimental Switchboards previously supplied. 



131 



Stettin, l*t May 1903. 



I beg to inform you that the Type B experimental 

 switchboard supplied for our Physics Class Room works 

 to my entire satisfaction 



Director Dr. Grassmann, 

 Friedrich-Wilhelm-Gymnasiuni. 



Posen, 17<h April 1903. 



The equipment of the Physics Section in our new 

 Augusta- Victoria-Gymnasium has met with the undivided 

 approval of all my colleagues who have inspected it. The 



switchboard and darkening device work exceedingly well. 

 The apparatus which your officials have handed over to 

 us are made in a very complete manner and are nice in 

 appearance. 



Oberlehrer Dr. Muhle, 

 Augusta- Victoria-Gymnasium. 



\V a 1 d s h u t, 3rJ October 1901. 



I have now completed the equipment. Both the 

 darkening device and the switchboard are working without 

 a hitch. 



Dr. Walter. 



03 



Experimental Switchboards previously supplied. 



Allenstein, Oberrealschule 



Eoyal Gymnasium 



Auerbach, Municipal Electricity Works 

 Baden-Baden, Oberrealschule 



Gymnasium 

 Bamberg, Lyceum 



Municipal Electricity Works 



Berlin, Gymnasium zum grauen 



Kloster (2 switchboards) 



2. Stadt. Realschule 



A. Dittmann 



Ernst Quincke 



Bernburg, High School for Girls 

 Beuthen, F. Jaeger, Chemist 

 Biebrich, Realsehule 

 Biedenkopf, Royal Realprogymnasium 

 Blagovesehtschensk, Weibl. Alexeieff- 



Gymnasium 

 Bonn, Psychological Seminary of the 



University 



Borna, near Leipzig, Realgynmasium 

 Bozen, Municipal Girls' School 

 Brake, Georg Rasmussen 

 Brandenburg a. d. H., Realgymnasium 

 Bregenz, Obergymnasium 

 Bremen, Heinrich Miiller 

 Bremerhaven, Municipal Electricity 

 Works 



Gas and Water Works 

 Breslau, Pharmaceutical Institute 

 Briesen, Realgymnasium 

 Bromberg, Realsehule 

 Brussels, Robert Drosten (6 switch- 

 boards) 



Budapest, Ganz Electrical Company 

 Burgsteiniurt, Kgl. Lehrerseminar 

 Cassel, Madchen-Mittelschule in der 

 Luisenstr. 



Amaliensehule 

 Chaux-de-Fonds, Eeole de Meeanique 



Chrudim, Municipal Lyceum 



Kgl. Landes-Ackerbauschule 

 Clausthal, Kgl. Gymnasium 

 Cleveland, Dept. of Physics, Case 

 School of Applied Science (two 

 switchboards) 

 Colmar. Physikzimmer im Mittelschul- 



gebaude 



Cb'then, Schultze & Leppert (4 switch- 

 boards) 



Herzg 1 Karls-Realgymnasium 

 Detmold, ' .anasium mit Realsehule 

 Dieburg, II l.L-re Biirgerschule 

 Dillingen, Realgymnasium (2 switch- 

 boards) 

 Dornbirn, Oberrealschule (2 switch- 



.boards) 

 Dortmund, Realsehule an der Miinster- 



str; 

 Dresden, Veterinary High School (two 



switchboards) 

 Karl Warmhach 



Dresden-Plauen, Kgl. Lehrer-Seminar 

 Duisburg.Muniripal Higher Grade School 

 Municipal Higher Grade School 



for Girls 

 Diisseldorf, Oberrealschnle au der 



Fursu-nwallstrassfc 

 Reform gymnasium 

 Luisenschule 



Erfurt, Royal Mechanics' School 

 Fiume, Gustavo Wihrheim 

 Forst, Magistral. Stadtbauamt 

 Frankenberg i. S.. Royal Seminary 



Realsehule 

 Gera, Zabelschule 

 Graudenz, Oberrealschule 

 Gymnasium 



Municipal Tramways, Electricity 

 and Water Works 



Groningen. Electrisch Bedrijf der Ge- 



meente 

 Grunewald, Higher Grade School for 



Girls 



Giistrow, Realgymnasium 

 Haag, .T. Pohl 

 Hagen i. W., Higher Grade School for 



Girls 



Allgemeine Elektrizitategesellschaft 

 Halberstadt, Kgl. Domgymnasium 

 , Hamm, Municipal Higher Grade School 



for Girls 

 Helsingfors, Aktiebolaget Akademiska 



Bokhandeln 



Herne, Higher Grade School for Girls 

 Innsbruck, Commercial Academy, Phy- 

 sics Section 

 Commercial Academy, chemical 



laboratory 



Insterburg, Kreis-Krankenhaus 

 Itzehoe, Realsehule 

 Kieff, Polytechnic Institute 

 Kiel, II. Higher Grade School for Girls 

 III. Higher Grade School for Girls 



(2 switchboards) 

 Kolozsvar, Franz Lutze 

 Konitz, Royal Gymnasium 

 Krakau, Physical Institute of the K. K. 



St. Ann's Gymnasium 

 Landsberg a. W.. Royal Gymnasium 



with Realsehule 

 Langensalza, Elektrizitatswerk WeiB 



vV Sdhne 



Lankwitz, Realgymnasium 

 La Plata, Physics Institute of the Na- 

 tional University 

 Lehe, Oberrealsehule 

 Leipzig, Miiller & Syrbe (:2 switchboards) 

 University, Lab. for Applied Che- 



mistrv 



