See Manual on _Manual Training_, for details for making collecting appliances. Agricultural Bulletin No. 8, _Nature Collections for Schools_, Department of Education, Ontario, for detailed instructions on making insect collections. The outfit for collecting is neither expensive nor hard to prepare. It consists of (1) an insect net for catching the insects, made by sewing a bag of cheese-cloth to a stout ring one foot in diameter, which is fastened to a broom handle; (2) a cyanide bottle for killing the insects, prepared by pouring some soft plaster-paris over a few lumps of potassium cyanide (three pieces, each of the size of a pea) in a wide-mouthed bottle. When the plaster has set, keep the bottle tightly corked to retain the poisonous gases. (3) Pins to mount the specimens. Entomological pins, Nos. 2, 3, and 4, are the best for general use. Beetles are usually pinned through the right wing-cover at about one fourth of its length from the front end of it. Moths and butterflies are pinned through the thorax. Small insects may be fastened to a very small pin, which in turn is set into a bit of cork, supported by a pin of ordinary size. (4) Spreading board for moths and butterflies. (5) Insect boxes to hold the specimens. This should be secured before the collection is begun. It is a common mistake to believe that any box whatever will do for storing insects. It is necessary to encourage effort in drying, spreading, pinning, and labelling, by providing an effective means of permanently preserving the specimens. In cigar-boxes, pasteboard boxes, and such makeshifts, the specimens soon become broken, covered with dust, and marred in other ways, and the collectors become discouraged; hence it is necessary to secure good boxes from dealers in entomological supplies. A sponge saturated with carbon bisulphide should be placed in the box at intervals of not more than three months, to ensure the killing of parasites that destroy the specimens. Entomological supplies may be obtained from Chapman & Co., London, Ont., or from G. M. Hendry Co., Toronto, Ont., or from Messrs. Watters Bros., Guelph, Ont. BUTTERFLY AND MOTH COLLECTIONS For a study of the metamorphosis of butterflies and moths, it is necessary to have an insect cage. This can be purchased from any dealer in entomological supplies or it may be made by the pupils in the Manual Training Class. See Manual on _Manual Training_. A very satisfactory cage may be made, by the teacher or larger pupils, from a soap box, by tacking wire gauze over the open surface of the box, removing the nails from one of the boards of the bottom, and converting this board into a door by attaching it in its former position by light hinges and a hook and staple. The box, if now placed on end with two inches of loose soil in the bottom, will constitute a satisfactory insect cage, or vivarium.