. The butterfly book; a popular guide to a knowledge of the butterflies of North America. Butterflies -- North America. distance. As a rule, the wings of all specimens should be mounted at a uniform elevation of about seven eighths of an inch above the point of the pin. This is known as the " continental method " of mounting, and is infinitely prefer- able to the old-fashioned "English method," in which the insect was pinned low down upon the pin, so that its wings touched the surface of the box. Setting-blocks are most advanta- geously employed in setting small species, es
. The butterfly book; a popular guide to a knowledge of the butterflies of North America. Butterflies -- North America. distance. As a rule, the wings of all specimens should be mounted at a uniform elevation of about seven eighths of an inch above the point of the pin. This is known as the " continental method " of mounting, and is infinitely prefer- able to the old-fashioned "English method," in which the insect was pinned low down upon the pin, so that its wings touched the surface of the box. Setting-blocks are most advanta- geously employed in setting small species, especially the Hesperiidcc, the wings of which are refractory. When the insect has been pinned FIG. 53.—Setting-board designed upon the Setting-board or Setting- by the author. The wings of the block, the next step is to set the insect are ^ in Place ty strips of r tracing-muslin, such as is used by Wings;in the position which they engineers. The grooves at the side are to maintain when the specimen serve to hold the board in place in . h the drying-box. (See Fig. 59.) is thoroughly dry. This is accom- plished by means of what are known as " setting-needles" (Fig. 56). Setting-needles may be easily made by simply stick- ing ordinary needles into wooden matches from which the tips have been removed. In drawing the wings into position, care should be taken to plant the setting-needle behind the strong nervure on the costal margin of the wing; otherwise the wings are lia- ble to be torn and disfigured. The 54.—Setting-block: rule in setting lep- A, holes to enable the pin idoptera is to draw to reach to the cork; C, cork, filling groove on the bottom the anterior wing of the block; B, slit to hold forward in SUCh thread. a manner that the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Holland, W.
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Keywords: ., bookauthorhollandwjwilliamjacob, bookcentury1800, bookdecade1890
