run their roots into the ground, and so make green the earth? Did Man come out of the sea, as the Greeks thought? There are so many ideas in plants. Flora, with a full lap, scattering knowledge and flowers together; everything good and sweet seems to come out of flowers, up to the very highest thoughts of the soul, and we carry them daily to the very threshold of the other world. Next you may try the microscope and its literature, and find the crystals in the rhubarb. I remember taking sly glances when I was a very little boy at an old Culpepper's Herbal, heavily bound in leather and curiously illustrated. It was so deliciously wicked to read about the poisons; and I thought perhaps it was a book like that, only in papyrus rolls, that was used by the sorceress who got ready the poisoned mushrooms in old Rome. Youth's ideas are so imaginative, and bring together things that are so widely separated. Conscience told me I had no business to read about poisons; but there was a fearful fascination in hemlock, and I recollect tasting a little bit--it was very nasty. At this day, nevertheless, if any one wishes to begin a pleasant, interesting, unscientific acquaintance with English plants, he would do very well indeed to get a good copy of Culpepper. Grey hairs had insisted in showing themselves in my beard when, all those weary years afterwards, I thought I would like to buy the still older Englishman, Gerard, who had no Linnaeus to guide him, who walked about our English lanes centuries ago. What wonderful scenes he must have viewed when they were all a tangle of wild flowers, and plants that are now scarce were common, and the old ploughs, and the curious customs, and the wild red-deer--it would make a good picture, it really would, Gerard studying English orchids! Such a volume!--hundreds of pages, yellow of course, close type, and marvellously well printed. The minute care they must have taken in those early days of printing to get up such a book--a wonderful volume both in bodily shape and contents. Just then the only copy I could hear of was much damaged. The cunning old bookseller said he could make it up; but I have no fancy for patched books, they are not genuine; I would rather have them deficient; and the price was rather long, and so I went Gerardless. Of folk-lore and medicinal use and history and associations here you have hints. The bottom of the sack is not yet; there are the monographs, years of study expended upon one species of plant growing in one locality, perhaps; some made up into thick books and some into broad quarto pamphlets, with most beautiful plates, that, if you were to see them, would tempt you to cut them out and steal them, all sunk and lost like dead ships under the sand: piles of monographs. There are warehouses in London that are choked to the beams of the roof with them, and every fresh exploration furnishes another shelf-load. The source of the Nile was unknown a very few years