. Elementary studies in insect life. Insects. FORM AND FUNCTION 253 upon the same page, the possibility for confused im- pressions arises. Preparation of Specimen.— The most humane and at the same time the most convenient way to prepare the live specimens for anatomical study is to place them for from one-half to three-quarters of an hour in a cyanide bottle. Any wide-mouthed bottle will do. Cnt a piece of cyanide of potassium,1 the size of a walnut, into small pieces, place in the bottle and cover with plaster of -. FIG. 192. Cyanide bottle. paris, add enough water to moisten the plaster of p
. Elementary studies in insect life. Insects. FORM AND FUNCTION 253 upon the same page, the possibility for confused im- pressions arises. Preparation of Specimen.— The most humane and at the same time the most convenient way to prepare the live specimens for anatomical study is to place them for from one-half to three-quarters of an hour in a cyanide bottle. Any wide-mouthed bottle will do. Cnt a piece of cyanide of potassium,1 the size of a walnut, into small pieces, place in the bottle and cover with plaster of -. FIG. 192. Cyanide bottle. paris, add enough water to moisten the plaster of paris, allow to stand uncovered until dry; then put a circular piece of blotting-paper which will cover this plaster formation in the bottom of the bottle. This paper will keep the insect dry, and when the blotter becomes very moist it should be replaced by another. A roll of blotting-paper is frequently placed around the inside of 1 Cyanide of potassium is a deadly poison. Great care should be exercised while handling it, to avoid inhaling the fumes or bringing the substance in contact with 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 Hunter, Samuel John, 1866-1946. Topeka, Kan. , Crane & company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1902
