362 



Popular Science Monthly 



A Castle Built of Coal to Advertise 

 the Resources of Tennessee 



KNOXVILLE, Tennessee, has a very 

 practical and effective way of 

 advertising the great natural resources 

 of that section of the state. In Chil- 

 howee Park, the principal recreative 

 center of Knoxville is a veritable coal 

 castle. 



The building is constructed entirely of 

 coal, more than a hundred tons of the 

 mineral having been employed for the 

 purpose, although it is only one story 

 high with a one-room interior. The usual 

 belief that coal is not impervious to the 

 inroads of the elements has been very 

 effectually disproven, because the build- 

 ing erected several years ago is sho\ying 

 no serious sign of falling into disrepair. 



In addition to advertising the fact 

 that Knoxville is in the center of a great 

 coal producing section, the coal castle 

 also affords the advantages of a rest 

 room in the park. The appearance of 

 the structure is decidedly picturesque 

 in its glistening, weather-polished black. 

 The building is an added 

 attraction to the 

 fine park. 



Cutting the Cost of Illuminants by 

 Wall Treatment 



THE illumination of factories, rail- 

 road terminals and department 

 stores has been given great consideration 

 of recent years; increased output, im- 

 proved workmanship and a minimum 

 of accidents having resulted in nearly 

 every instance where better lighting sys- 

 tems have been installed. In such places, 

 wall treatment as a means for con- 

 serving the illumination afforded by 

 modern illuminants has generally been 

 adopted. These advances have come as 

 a result of practical observations, which 

 show that the rays from powerful lights, 

 falling upon dark brick or stone walls, 

 give less light to a room than the rays 

 from less powerful lights falling upon 

 similar walls that have been painted in 

 light colors with dust-resisting, wash- 

 able paints. From the standpoint of 

 economy it is of interest to record the 

 fact that the monthly cost of illuminants 

 for lighting dark-walled factories may 

 be enormously reduced by the occasional 

 application of such paints 

 and the workers will 

 appreciate it also. 



ll 1 uuk a 1 liiii^h I il r.Mi , ol tCal ti i t < -iiM i U' 1 1 in . 1 iuilding and Advertise the F,k t 1' li.it 

 Knoxville, Tennessee, Considers Coal to be One of Her Greatest Natural Resources 



