The most skilful geologist, if his attention had been confined exclusively to these large territories, would never have suspected that during the periods which were blank and barren in his own country, great piles of sediment, charged with new and peculiar forms of life, had elsewhere been accumulated.
Geologorik trebeenak ere, bere arreta herrialde handi hauetara mugatuz jokaturik, ez zukeen inoiz susmatu, bere herrialde propioan huts eta idorrak izaniko aldietan, beste toki batzuetan forma organiko berri eta bereziz beteriko sedimentu-masa handiak metatu ziratekeenik.