On the Art of arranging ornamental Plants in Gardens, so as to derive the greatest possible advantage from the Colours of their Flowers 180 Assortments of Flowers where the Plants are apart 181 Assortments relating to the Harmonies of Contrast of Hues 182 Assortments as to Harmony of Analogy 182 On the Art of assorting Ligneous Plants in Gardens, so as to derive the best possible advantage from the Colour of their Foliage 184 On the Distribution and Planting of Trees, &c., in Masses 185 Chap. I. Of Lines of Plants 187 Of the Lines of Plants called Screens 188 Of Lines of Plants considered as Elements of Masses 188 Of Homogeneous Masses 189 Of Heterogeneous or Varied Masses 190 Isolated 190 Contrast of Colours 194 Repetition 194 Symmetry 196 General Harmony 196 SIXTH DIVISION.—INTERVENTION OF THE PRECEDING PRINCIPLES IN THE JUDGMENT OF COLOURED OBJECTS, RELATIVELY TO THEIR COLOURS, CONSIDERED INDIVIDUALLY, AND TO THE MANNER IN WHICH THEY ARE ASSOCIATED 197 On the Connexion of the Law of Simultaneous Contrast of Colours with the Judgment we form upon all Coloured Bodies, under the relations of the respective Beauty or Purity of their Colours, and of the Equality of the Distance of their Tones if these bodies belong to the same scale 205 On the Comparison of two Samples of the same Colour 206 Influence of a Surrounding Colour upon one Colour when compared with another 206 On the Effect of Contrast upon the Browns and the Lights of most of the Scales of Wood and Silk employed in Tapestry and Carpets 208 Means afforded by Contrast for ascertaining whether the Tones of a Scale of Colour are equidistant 209 Of the Binary Associations of Colours, critically considered 210 Of the Complex Association of Colours, reviewed critically 214 Of the Arts which address the Eye by employing Coloured Materials of a certain size, considered relativelyto the Physical Condition of these Materials,