Wood — Effects in Mok uaweoweo of the Eruption of 1914- 391 



tern of minor cracks, almost unnoticeable. It certainly cannot 

 be dignified by the appellation of fissure. Yet it was formed 

 suddenly at the initiation of the summit eruption ; it is remark- 

 ably rectilinear; it is within and in the course of the great rift 



Fig. 3«. 



Fig. 36. 



through the mountain ; and a group of weak earthquakes 

 attended its formation. 



However, where it cuts across the former course of the 

 channel which led from the older cone there the older lava is 



