"Though the trunk and all the inner boughs and leaves have disappeared, yet there hang here and there fossil leaves, also in mid-air; they appear to have been petrified, without method or selection, by what we call the caprices of nature; they hang in the path which the boughs and twigs would have taken, and they seem to indicate that if the tree could have been seen a million years earlier, before it had grown near its present size, the leaves standing at the end of each bough would have been found very different from what they are now."