Note 97 — Chapter IX · LAMARCK THE FOUNDER OF INVERTEBRATE PALÆONTOLOGY
Reading edition
In the first edition of the Théorie he says fifteen years, writing in 1812. In the later edition he changed the number of years to thirty.
Reading edition
In the first edition of the Théorie he says fifteen years, writing in 1812. In the later edition he changed the number of years to thirty.