Thus it will be seen that Harvey took but little part in influencing the thought of his time; the materials for his work were gathered not from his own creative brain, nor from the thoughts of other men, but direct from Nature's storehouses; his study was the far-stretching shore, his companions "The toiling surges, Laden with sea-weed from the rocks," his duty the describing with pen and pencil the harvest of the sea. In his works, he rises above mere technical description of the species with which he is dealing. His mind is filled with the beauty and wonder of plants; and he strives to impress the reader with the deep interest of the study of botany. He endeavours always to popularize his favourite pursuit by means of pleasant general introductions, and to promote a better knowledge of seaweeds or of flowering plants by appealing to his readers to collect, and by giving instructions for the gathering and preserving of specimens. He derived a peculiar satisfaction from the thought that, at his post at Trinity College, Dublin, he was building up a great permanent collection that would be useful to future generations of botanists. "Here," he writes, "I sit like a turnspit roasting the meat, and when I am gone I suppose another dog will be put in my place. The Herbarium will not be broken up. I am content, for I seem to be working for some little purpose. I should just like to leave it in better order--to get through the arrears--and to return borrowed specimens." It was the same thought that prompted him to the publication of the great descriptive works which his rapidity and skill with pen and pencil enabled him to complete despite frequent intervals of illness. He devoted himself to his task with intense application. "Twenty minutes," he writes from South Africa in the middle of the stifling summer, "is my fair allowance for a drawing, with all its microscopical analysis."