WINDOWS AND SKYLIGHTS 



The machine shop of the Lehigh Valley Ry., at Sayre, Pa., will 

 have the side windows of plane glass. The locomotive shop will have 

 factory ribbed glass in the side windows and wire glass in the roof 

 and monitor skylights. 



About 25 per cent of the roof of the St. Louis Train Shed is sky- 

 light. 



In the American Car and Foundry Company's shop at Detroit, 

 about 27 per cent of the exterior surface is ribbed glass. 



Fully 60 per cent of the exterior surface of the Steam Engineer- 

 ing Buildings for the Brooklyn Navy Yard is of glass. 



FIG. I57a. DETAILS OF SAW TOOTH WINDOWS FOR P. & L. E. R. R. 

 SHOPS. SEE FIG. 84d. 



