Colour-sided Colour-sided Colour-sided is a colour pattern of domesticated cattle. It is sometimes called lineback It consists of a dark body colour, with white finching along the spine, white under the belly, and often white also over the tail, head and legs. The ears, nose and feet are generally dark. The pattern may occur in many breeds, but some breeds are consistently colour-sided, including English Longhorn cattle, Irish Moiled cattle, Randall cattle, Riggit Galloway cattle and Lineback cattle. The dark colour may be any solid colour such as black, red or brindle. An extreme pale form of the colour-sided pattern is
George Palmer (colour theorist) is moved by its own ray." This statement has proved true in regard to the number of different light sensor types, the cones, in the human eye, if not in regard to the claim of three kinds of light. Twenty-five years later a similar statement was made by the eminent physicist Thomas Young. Voigt, in his report on Giros von Gentilly, describes him as having stated that colour blindness arises if one or two of the three kinds of "particles" (light sensors) in the retina are inactive, a statement found to be accurate. In 1786 Palmer provided a hypothesis for