14 



OSMOTIC PRESSURE OF AQUEOUS SOLUTIONS. 



-c 









Fig. 5. 



A. Electric kiln for baking cells, (a), (6), and (c) perforated clay rings, held in place by three 



platinum rods which prevent the platinum wires from "buckling" when hot. 



B. Inner covering for electric kiln, (d) Clay cylinder; (e) cover; (/) bottom; (g) truncated 



clay cones. 



C. Outer covering for electric kiln, (h) Clay cylinder; (;') bottom; (k) truncated clay cones. 



Fig. 6. — Electric kiln arranged as crucible furnace, 

 (a) to (fc) the same as in Figs. 5 A, 5 B, 5 C; (I) Le Chatelier pyrometer; (to) sheet-iron 

 cylinder covered with asbestus; (n), (o), and (p) parts of base; (q), (r), and (s) parts of elec- 

 trical connections; (0 rest for crucible. 



