. Evenings at the microscope : or, researches among the minuter organs and forms of animal life. Microscopy; Microscopes; Medical microscopy. INSECTS : WINGS AND THEIE APPENDAGES. 93 A piece of one of the wing-cases of this beetle is gummed to the slide now upon the stage. We look at it by reflected light with a magnifying power of 130 a black ground, on which are. SCALES OF DIAMOND-BEETLE, diameters. We see strewn a profusion of what look like precious stones blaz- ing in the most gor- geous lustre. To- pazes, sapphires, amethysts, rubies, emeralds seem here sown broadcast; and yet not wholly
. Evenings at the microscope : or, researches among the minuter organs and forms of animal life. Microscopy; Microscopes; Medical microscopy. INSECTS : WINGS AND THEIE APPENDAGES. 93 A piece of one of the wing-cases of this beetle is gummed to the slide now upon the stage. We look at it by reflected light with a magnifying power of 130 a black ground, on which are. SCALES OF DIAMOND-BEETLE, diameters. We see strewn a profusion of what look like precious stones blaz- ing in the most gor- geous lustre. To- pazes, sapphires, amethysts, rubies, emeralds seem here sown broadcast; and yet not wholly with- out regularity, for there are broad bands of the deep black surface, where there are no gems, and, though at considerable diversity of angle, they do all point with more or less precision in one direction, viz. that of the bands. These gems are flat transparent scales, very regu- larly oval in form, for one end is rather more pointed than the other; there is no appearance of a footstalk, and by what means they adhere, I know not; they are evidently attached in some manner by the smaller ex- tremity to the velvety black surface of the wing-case. The gorgeous colours seem dependent in some measure on the reflection of light from their polished surface, and to vary according to the angle at which it is re- flected. Green, yellow, and orange hues predominate; crimson, violet, and blue are rare, except upon the long and narrow scales that border the suture of the wing- cases, where these colours are the chief reflected. Yet. 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 Gosse, Philip Henry, 1810-1888. New York, D. Appleton
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Keywords: ., bookcentury1800, booksubjectmicroscopes, booksubjectmicroscopy
