Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . a cap (<•;), which fits closelyon to the box, and has a top of fine wire gauze. To thecentre of the zinc pan is soldered a zinc tube (d) just largeenough to contain an ordinary quinine bottle. The zincpan is filled with clean sifted earth or sand (e), and thequinine bottle is for the reception of the food-plant. Thecage admits of abundant light and air, and also of theeasy removal of the excrement and frass which fall to theground; while the insects in transforming enter the groundor attach themsel
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . a cap (<•;), which fits closelyon to the box, and has a top of fine wire gauze. To thecentre of the zinc pan is soldered a zinc tube (d) just largeenough to contain an ordinary quinine bottle. The zincpan is filled with clean sifted earth or sand (e), and thequinine bottle is for the reception of the food-plant. Thecage admits of abundant light and air, and also of theeasy removal of the excrement and frass which fall to theground; while the insects in transforming enter the groundor attach themselves to the sides or the cap, according totheir habits. The most convenient dimensions I find to betwelve inches square and eighteen inches high: the cap andthe door fit closely by means of rabbets, and the former has into the outspread umbrella; this method is successful for fir, spruce,and pine trees, as well as forest trees in general. REARING INSECTS IN GENERAL. 245 a depth of about four inches to admit of the largest cocoonbeing spun in it without touching the box on which it FIG. 271. —Breeding-cage. The zinc pan might be made six or eight inches deep, andthe lower half filled with sand, so as to keep the wholemoist for a greater length of time. A dozen such cages will furnish room for the annualbreeding of a great number of species, as several havingdifferent habits and appearance, and which there is nodanger of confounding, may be simultaneously fed in thesame cage. I number each of the three parts of each cage,to prevent misplacement and to facilitate reference; andaside from the notes made in the note-book, it will aid the 246 ENTOMOLOGY. memory and expedite matters to keep a short open recordof the species contained in each cage, by means of slips ofpaper pasted on to the glass door. As fast as the differentspecimens complete their transformations and are takenfrom the cage the notes may be altered or erased, or theslips wetted and removed entirely. To pre
Size: 1295px × 1929px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
