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THE POPULAR SCIENCE MONTHLY 



A number of smaller buildings, devoted to various purposes, such 

 as the care of the crippled, the housing of the poor, sylvan burial of the 

 dead, the rearing of various species of rabbits for food purposes, a model 

 stable for cows and clean milk production, form the outskirts of this 

 part of the exhibition grounds. 



Passing now over the bridge across the Lenne-Strasse which sepa- 

 rates the two main divisions of the exhibition grounds, we may either 

 climb the few steps that lead up to the bridge or simply step on the 

 inclined surface of a sidewalk, in constant motion, carrying passengers 

 up at the expense of two and one half cents. The bridge leads the 

 visitor over into the second great division of the grounds. Here we find, 

 on the right, the large hall for occupational hygiene, on the left the 

 power-house ; facing the visitor is the gigantic hall marked " Settle- 



Main Building. 



ment and Habitation," one of the richest, so far as contents are con- 

 cerned, of the whole exhibition. Passing the music stand and turning 

 to the left, we have, on the left, an Abyssinian village; on the right 

 several small and large restaurants and enter a large open space having 

 on one side the large hall devoted to the hygiene of clothing and the 

 general care of the body, on the other the hall exhibiting nutrition, 

 dietetics and food stuffs, while facing us, in the distance, there is the 

 large oval for sports with its stadium, music stand, grandstand, restau- 

 rant and sport laboratory, as well as the immense swimming tank called 

 " Undosa." In this swimming tank, artificial waves about three feet 

 high are produced by mechanical means and the bather gets the benefit 

 of an open air bathing resort nearer at home. 



The sport laboratory is fitted out with all sorts of scientific instru- 

 ments and apparatuses to investigate scientifically the effects of physical 

 exercise on the human body, especially on heart and lungs. A gymna- 



