Geology ... offers always some material for observation. ... [When] spring and summer come round, how easily may the hammer be buckled round the wais….

When autumn returns with its long anticipated holidays, and preparations are made for a scamper in some distant locality, hammer and notebook will no….

If all history is only an amplification of biography, the history of science may be most instructively read in the life and work of the men by whom t….

This boulder seemed like a curious volume, regularly paged, with a few extracts from older works. Bacon tells us that "some books are to be tasted, o….