Experimental geology has this in common with all other branches of our science, petrology and palaeontology included, that in the long run it withers indoors.

In order to survive, an animal must be born into a favoring or at least tolerant environment. Similarly, in order to achieve preservation and recognition, a specimen of fossil man must be discovered in intelligence, attested by scientific knowledge, and interpreted by evolutionary experience. These rigorous prerequisites have undoubtedly caused many still-births in human palaeontology and are partly responsible for the high infant mortality of discoveries of geologically ancient man.

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

Palaeontology is the Aladdin's lamp of the most deserted and lifeless regions of the earth; it touches the rocks and there spring forth in orderly succession the monarchs of the past and the ancient river streams and savannahs wherein they flourished. The rocks usually hide their story in the most difficult and inaccessible places.