16 



PLATE XIV 



Testing machine breaking concrete pipes. 



PLATE XV 



FIG. 1. Machines for testing the cementation value and toughness of road 



materials. 

 2. Hydraulic briquetting machine for testing road materials. 



PLATE XVI 



FIG. 1. New lime kiln. 

 2. Assay house. 



PLATE XVII 



Geology and mining exhibit room. 



PLATE XVIII 



FIG. 1. The Babcock and Wilcox boiler units of the power plant. 

 2. A corner of the engine room. 



PLATE XIX 



Machine shop, showing shaper, universal milling machine, press drill 

 lathe, etc. 



PLATE XX 

 FIG. 1. Producer-gas plant. 



2. Producer-gas engine and dynamo direct coupled. 



PLATE XXI 



FIG. 1. Small-animal house, showing breeding cages. 

 2. Publications of the Bureau of Science. 



o 



