io6 



THE POPULAR SCIENCE MONTHLY 



Peofessor Eberlein's Bust of C. F. Gauss., recently placed in the Gauss 



Tower on the Hohehagen. 



The Gauss tower on the Hohehagen indicates the exact location of 

 a corner of a geodetic triangle in a survey established by Gauss. This 

 triangle is classic in the history of geodesy. It was on that survey that 

 the now famous instrument, invented by Gauss, called the " heliotrope," 

 was used for the first time. It reflects the rays of the sun from one 

 station to another many miles distant so that directions can be measured 

 accurately and signals sent from station to station. 



The high esteem in which Gauss is held in Germany is shown also 

 by the recent dedication of another " Gauss room " in the town of 

 Braunschweig. The house at No. 30 Wilhelmsstrasse, bears a tablet 

 with the inscription : " In this house was born Carl Friedrich Gauss 

 on April 30, 1777." The plan to establish in this house a "Gauss- 

 zimmer" was carried out by the Historical Union of the Herzogtum 

 Braunschweig. All sorts of Gauss relics have been gathered and are 

 exhibited here. Photographs are shown of near relatives and the im- 

 mediate descendants of Gauss, among whom are several Americans. 

 Braunschweig has always been proud of its illustrious son. There is 

 a statue of him in that city, on one side of which the close observer will 



