"For the first time full authoritative texts of Darwin's are made available, edited according to modern textual editorial principles and practice. Letter-writin

This volume covers the culmination of Darwin's work on species. From early in 1856, when he was persuaded that the time had come to publish an account of his he

The letters in this volume cover two of the most momentous years in Darwin's life. Begun in 1856 and the fruit of twenty years of study and reflection, Darwin's

A rich and exuberant group biography of the early geologists, the people who were first to excavate from the layers of the world its buried history. The birth o