8 | Contents 8 | Contents SIX Preface to Street Life in London  72 London Nomades  76 The Crawlers  84 Hookey Alf  94 John Thomson and Adolphe Smith From Street Life in London (1877-78) SEVEN Captain Abney at South Kensington Museum  102 Millbank Prison  110 H P Robinson at Tunbridge Wells  118 James Valentine and Sons at Dundee  124 T & R Allen at Glasgow  136 M. Nadar in the Rue d’Anjou St Honoré  142 H Baden Pritchard From The Photographic Studios of Europe (1882) EIGHT Naturalistic Photography and Art  148 Science and Art  168 Art is a Language  180 P H Emerson From Naturalistic Photography for Students of the Art (1889)