When he thus speaks of studying 'the countenance of the sky', Howard is not using a mere form of speech; he is exactly describing his own procedure, as he shows when he proceeds to justify it as a means to scientific knowledge. The clouds with their ever-moving, ever-changing forms are not, he says, to be regarded as the mere 'sport of the winds', nor is their existence 'the mere result of the condensation of vapour in the masses of the atmosphere which they occupy'. What comes to view in them is identical, in its own realm, with what the changing expression of the human face reveals of 'a person's state of mind or body'. It would hardly be possible to represent oneself more clearly as a genuine reader in the book of nature than by such words. What is it but Ruskin's 'Stand by Form against Force' that Howard is here saying in his own way?