Outwardly different from Ruskin's and yet spiritually comparable, is the contribution made by his older contemporary, Luke Howard, to the foundation of a science of nature based on intuition. Whereas Ruskin throws out a multitude of aphoristic utterances about many different aspects of nature, which will provide us with further starting-points for our own observation and thought, Howard is concerned with a single sphere of phenomena, that of cloud formation. On the other hand, his contribution consists of a definite discovery which he himself methodically and consciously achieved, and it is the content of this discovery, together with the method of research leading to it, which will supply us ever and again with a model for our own procedure. At the same time, as we have indicated, he will help us to become familiar with another side of Goethe, and to widen our knowledge of the basic scientific concepts formed by him.