The Primary colours are Red, Yellow and Blue; admixture of any two of these result in the Secondary colours which form the complementaries of the Primaries not involved. Thus blue and yellow combined result in green, which is the complementary of red, the complementary of yellow being purple, and that of blue, orange. Intensity of hue of any colour employed may vary considerably, and this variation should be proportional in other tints associated. Part of the charm of colour often depends on its complexity, in natural aspects due to atmosphere and varied phases of light. Pure colours should at times be avoided, that is, in the sense in which they are obtainable as pigments. _Early Training_ Students should have attained some considerable facility in drawing before taking the study of design seriously, though probably part of the early training has dealt with extremely elementary forms leading in that direction. Undoubtedly, too, many enter on this phase of study without adequate preparation, having little appreciation of the underlying geometric construction, not only in design but in all form. This, on investigation, can always be found, and either the general mass or sub-divisions identified with some simple geometric shape enclosing the more intimate details. Correct approximation and placing are essential to the accuracy and success of the drawing. Too often through lack of training the tendency is to draw detail right away, without the necessary preliminary of determining the mass shapes. _Nature Study_ The study of natural form is of paramount importance to prospective designers. Subjects should be selected as season or opportunity permit, not merely from plant and floral growth, but any form available, animate or inanimate that is suggestive of pattern or susceptible of ornamental treatment. Students in their early attempts in design invariably find convention a stumbling-block, and in making their studies from nature cannot at first grasp the idea that selection should be exercised, and that only those phases which are favourable to decorative results should be recorded. Design is not concerned with facts or exact portraiture so much as pattern, and only those features and attitudes that are suitable should be dealt with. To perpetuate the ugly and unsuitable is waste of both time and energy. _Aspect and Attitude_ In too many instances the first aspect of the subject of study is recorded, even without any regard to natural attitude. It may be a spray of blossom taken by the student from the parent tree or shrub, which is fixed up in any position that comes handy. For this there is no excuse; the spray should not only be placed consistently, but to the best advantage, the object being to record aspects that are suggestive of decorative development. In design it is conditional that each individual detail should be primarily effective as a silhouette, surface interest being of secondary consideration.