Bulletin . Fig. 12. Metamorphosis sliowiiiH, r (niagnififd^and i/. Iniatro of Monarch Butterfly. Larva, Pupa, may be carried on successful!} b_v means of breeding cage of simple construction is shown in Fig. 13. The es-sential points in a good breeding cage are : (1) It should besufficientlv tall to receive the food-plant, which should nottouch the top of the cage but should come in contact withthe sides; (2) it should have an abundant supply of air andlight; (3) the bottom should be lined with galvanized ironto retain moisture, and the receptacle for earth in the bottomof the cage sho
Bulletin . Fig. 12. Metamorphosis sliowiiiH, r (niagnififd^and i/. Iniatro of Monarch Butterfly. Larva, Pupa, may be carried on successful!} b_v means of breeding cage of simple construction is shown in Fig. 13. The es-sential points in a good breeding cage are : (1) It should besufficientlv tall to receive the food-plant, which should nottouch the top of the cage but should come in contact withthe sides; (2) it should have an abundant supply of air andlight; (3) the bottom should be lined with galvanized ironto retain moisture, and the receptacle for earth in the bottomof the cage should be at least three inches deep; (4) a re- -25- ceptaclc for the bottle desijifned to contain the food-plantmay be made of jjfalvanized iron and should be soldered tothe bottom of the box near the center; (5) the door shouldopen upward or sidewise, never downward, and should fitsnujjly. Simpler caj^fes may Ix- made of kegs or boxes sunk in theg-round and covered with netting. The breeding ca
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercincinnati, bookyea
