A cabinet, however, need not be bought all at once; it may be arranged to grow with the collection--and, it may be, with the collector too--by having one or two drawers made at a time; till, in course of time, a sufficient number is obtained, when the whole may be fitted into a case at a small additional expense, and then there is a first-rate cabinet complete; for, to make this plan really advantageous, the drawers should be well made and of good material. Of course, all the drawers must be made to the same "gauge," to insure perfect fitting when the cabinet is made up. These drawers may be made by any clever joiner, but as their construction is peculiar, and not easily described, it is necessary, either that the maker should be accustomed to this speciality, or that he be furnished with a pattern, either by buying a single drawer at a dealer's, {57} where that can be done, by borrowing one out of a friend's cabinet, or by making therefrom a good working drawing (in section, &c.). The glasses which cover in the drawers should always have separate frames for the more perfect exclusion of dust and mites. Well seasoned mahogany or deal may be the material for the drawers, but on no account let them be of cedar, a material often used by ignorant or unprincipled makers, to the great detriment of the collection, and mortification of the collector, as resinous matter after a short time exudes from the pores of this wood, dropping down on to the glasses below in a gummy shower, and the effluvium seems to condense upon the contained insects, whose wings are gradually discoloured and disfigured by greasy looking blotches. The drawers are lined at bottom with cork, covered with _pure white_ paper, which should be attached with _thin_ paste. The butterflies are then to be arranged in the drawers in perpendicular columns, and in accordance with some system of classification. If there be room it is well to have a considerable number of specimens of each species, especially when it is one liable to much variation. At least one of each sex should always be given, and also one of each sex showing the _under_ surface. When the chrysalis can be procured, that also should be pinned down with its fellow-butterfly, and a good coloured drawing of each caterpillar would be a valuable addition to the series. Between the columns, lines should be {58} ruled varying in distance according to the breadth of the butterflies, and small labels should be pinned down at the foot of each species giving its _specific_ name; the name of the genus being placed at the head of the _first_ species of the genus. The names of the families and sub-families under which the _genera_ are classed are also generally given in their respective places.