Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . ith onethickness of soft paper. Their wings can then be easilyspread. Setting-boards for spreading the wings of insectsmay be made by sawing deep grooves in a thick board, andplacing a strip of pith or cork at the bottom. The groovemay be deep enough to allow a quarter of the length of thepin to project above the insect. The setting-board usuallyconsists of thin parallel strips of board, leaving a groovebetween them wide enough to receive the body of the in-sect, at the bottom of which a strip of cork
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . ith onethickness of soft paper. Their wings can then be easilyspread. Setting-boards for spreading the wings of insectsmay be made by sawing deep grooves in a thick board, andplacing a strip of pith or cork at the bottom. The groovemay be deep enough to allow a quarter of the length of thepin to project above the insect. The setting-board usuallyconsists of thin parallel strips of board, leaving a groovebetween them wide enough to receive the body of the in-sect, at the bottom of which a strip of cork or pith shouldbe glued. The ends of the strips should be nailed on to astouter strip of wood, raising the surface of the setting-board an inch and a half, so that the pins can stick throughwithout touching. Several setting-boards can be made toform shelves in a frame covered with wire gauze, so thatthe specimens may be preserved from dust and destructiveinsects, while the air may at the same time have constantaccess to them. The surface of the board should incline PRESERVING INSECTS. 235. FIG. 2 J7.—Setting-board. a little towards the groove for the reception of the insect,as the wings often gather a little moisture, relax and falldown after the insect is dried. For the proper setting ofinsects with broad and flattened wings, such as butterfliesand moths, a spreading board or stretcher is that is simple and answers every purpose is shown atFig. 267. It may be made of two pieces of thin white-woodor pine board, fastened to-gether by braces, especiallyat the ends, and left wideenough apart to admit thebodies of the insects to bespread: strips of cork orpith, in which to fasten thepins, may then be tackedor glued below so as to coverthe intervening space. Thebraces must be deep enoughto prevent the pins from touching anything on which thestretcher may be laid; and, by attaching a ring or loop toone of them, the stretcher may be hung against a wall, outof the way.
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
