. First[-ninth] annual report on the noxious, beneficial and other insects, of the state of Missouri, made to the State board of agriculture, pursuant to an appropriation for this purpose from the Legislature of the state . onthem several rows of carded duplicates may be fastened, one underthe other, so as to economize room. I have seen few old collections in better condition than that ofM. E. Mulsant, of Lyons, France; and he uses iron wire, cut slant-ingly of the requisite length—a common custom in France. Thesewires bend so easily and have such dull points that they require muchmore careful
. First[-ninth] annual report on the noxious, beneficial and other insects, of the state of Missouri, made to the State board of agriculture, pursuant to an appropriation for this purpose from the Legislature of the state . onthem several rows of carded duplicates may be fastened, one underthe other, so as to economize room. I have seen few old collections in better condition than that ofM. E. Mulsant, of Lyons, France; and he uses iron wire, cut slant-ingly of the requisite length—a common custom in France. Thesewires bend so easily and have such dull points that they require muchmore careful manipulation than the pins, and the claim made for themthat they do not verdigris, would, perhaps, not hold good near thesea. Silver wire, or silver-plated wire, is used for the same purpose. For the proper setting of insects with broad and flattened wings,such as butterflies and moths, a spreading board or stretcher is neces-sary. One that is simple and answers every purpose is shown at figure19. It may be made of two pieces of thin white-wood or pine board,fastened together by braces, especially at the ends, and left wideenough apart to admit the bodies of the insects to be spread: strips 36 FIFTH ANNUAL REPORT. f^s-19] of cork or pith, in which to fasten the pins, may then be tacked or glued belowso as to cover the intervening space. Thebraces must be deep enough to preventthe pins from touching anytliing the^fc stretcher may be laid on; and by attach-ing a ring or loop to one of them, the|p^9 stretcher may be hung against a wall, outj|=r^ of the way. For ordinary-sized specimensI use boards 2 feet long, 3 inches wide and ^ inch thick, with threebraces (one in the middle and one at each end) 1^ inches deep at theends, but narrowing from each end to 1 1-6 inches at the slight rising from the middle is to counteract the tendency of thewings, however well dried, to drop a little after the insect is placedin the cabinet. The wings are held in position by means of
Size: 1851px × 1350px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectb, booksubjectinsects
