. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . g insects upon card-board, etc., Spauldingsliquid glue may be used ; or in its stead the following prepar-ation may be used, and is to be preferred : Pulverized gum tragacanth, three drams ; pulverized gumarabic, one dram; corrosive sublimate, one grain; mix, andadd a little water. For spreading out the wings of butterflies, etc., a setting-board of some sort should be used; one that is simple in itsconstruction and answers every purpose is
. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . g insects upon card-board, etc., Spauldingsliquid glue may be used ; or in its stead the following prepar-ation may be used, and is to be preferred : Pulverized gum tragacanth, three drams ; pulverized gumarabic, one dram; corrosive sublimate, one grain; mix, andadd a little water. For spreading out the wings of butterflies, etc., a setting-board of some sort should be used; one that is simple in itsconstruction and answers every purpose is shown at Fig. is made of two pieces of softpine boards (the softer the bet-ter) about half an inch thick,one and a half inches wide, andof any convenient length ; theseshould be fastened to uprightblocks about one and one halfinches high at each end, andtapering to one and one sixthinches high at the middle. Infastening the two upper pieces to these, leave a space betweenthe upper pieces wide enough to admit the insects body; astrip of cork or pith is then glued over this space on theunder side, and the work is completed. Fig. 342. Fig. For stretching out the wings, and for many other purposes,a needle stuck into a wooden handle (Fig. 342) will be founduseful; this is made by splitting off a piece of pine wood three COLIjECTING AM) PRESERVING [NSECTS. 135 or four inches long, then forcing into one end of it the eye endof a common sewing needle ; now whittle down the handle toa convenient size and shape (Fig. 342) and the instrument iscompleted. For retaining the wings of the insects on the setting boardin their proper position, strips of card-board should be pinnedover them (Fig. 341), using common short, sharp-pointed pinsfor this purpose. The setting-board may then be suspended upon the wall, orit may be placed in a box covered with fine wire gauze orstrainer cloth, which will admit plenty of air, while at the sametime preventing small insects from gaining acces
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectinsects, bookyear1883
