Changes, cyclic or otherwise, within the solar system or within our galaxy, would seem to be the easy and incontrovertible solution for everything that I have found remarkable in the stratigraphical record.

In the preface to his great History of Europe, H. A. L. Fisher wrote: "Men wiser than and more learned than I have discerned in history a plot, a rhythm, a predetermined pattern. These harmonies are concealed from me. I can see only one emergency following upon another as wave follows upon wave ..." It seems to me that the same is true of the much older [geological stratigraphical] history of Europe.

It may be said of many palaeontologists, as Professor Hugh Trevor-Roper said recently of 18th century historians: "Their most serious error was to measure the past by the present".

Sedimentation in the past has often been very rapid indeed and very spasmodic. This may be called the "Phenomenon of the Catastrophic Nature of the Stratigraphical Record."

Though the theories of plate tectonics now provide us with a modus operandi, they still seem to me to be a periodic phenomenon. Nothing is world-wide, but everything is episodic. In other words, the history of anyone part of the earth, like the life of a soldier, consists of long periods of boredom and short periods of terror.

Experts always tend to obscure the obvious.

Palaeontologists cannot live by uniformitarianism alone. This may be termed the Phenomenon of the Fallibility of the Fossil Record.