924 THE JOURNAL OF GEOLOGY. 
elongation of the rear escarpment and the number of lines in the 
wax reduced to two. Fig. Io. 
RESULTS OF EXPERIMENTS. 
An inspection of Figs. 1, 2, 3, 4 and 5 will show a very 
decided upward current produced in the basal portion of the 
FIG. 9. 
wax. The current starts somewhat back from the escarpment 
and travels up and over it in an arch, leaving between itself and 
the top and rear portions of the escarpment a layer of white wax 
seemingly unaffected by the movement. 
A second current is shown in the same plates creeping up 
close to the face of the escarpment and reaching to its top, 
where, upon a flat surface it may spread out closely applied to 
the suriaee as in Fig. 3) on mse a little sabovemierds imphiioesan 
In every case it will be noticed that this current is a very minor 
portion of the wax movement. In case of a further movement 
