Harold Jeffreys Quote

The real difficulty about vulcanism is not to see how it can start, but how it can stop.


Earthquakes and Mountains, 2nd edition (1950)


The real difficulty about vulcanism is not to see how it can start, but how it can stop.

The real difficulty about vulcanism is not to see how it can start, but how it can stop.

The real difficulty about vulcanism is not to see how it can start, but how it can stop.

The real difficulty about vulcanism is not to see how it can start, but how it can stop.