. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GERTRUDE MAREAN WHITE. The larvae were placed in a small square glass container (5 cm. x 5 cm. x cm.); opposite one side was placed a lo-watt Mazda lamp in a light-tight box ( cm. x cm. x 9 cm.) with an opening on the side toward the aquarium. The opening was covered by a smoked glass which reduced the illumination to candle power. This box was movable on a meter scale toward and away from the container. Opposite an adjoining side of the aquarium at right angles to this was another box (5 cm. x 5 cm. x 14 cm.)
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GERTRUDE MAREAN WHITE. The larvae were placed in a small square glass container (5 cm. x 5 cm. x cm.); opposite one side was placed a lo-watt Mazda lamp in a light-tight box ( cm. x cm. x 9 cm.) with an opening on the side toward the aquarium. The opening was covered by a smoked glass which reduced the illumination to candle power. This box was movable on a meter scale toward and away from the container. Opposite an adjoining side of the aquarium at right angles to this was another box (5 cm. x 5 cm. x 14 cm.) containing a 15-watt Mazda candelabra lamp, in front of. Sc M { p FIG. i. Diagram of apparatus. A, aquarium; F, Wratten light filter; M, movable lamp; Me, meter stick; P, removable partition; 5, stationary lamp; Sc, opaque screens. which could be inserted monochromatic light niters; this box was in a fixed position with the light 10 centimeters from the aquarium. Both lamps were operated by a single switch so that the larvae could be exposed simultaneously to light from the two sources. The lamp producing white light was moved back and forth on the meter scale until the point was found at which the larvae distributed themselves equally with respect to the two sources of light. The white and the colored lights were then considered to be of equal stimulating effect. Black screens with openings somewhat larger than the source of light were so arranged as to minimize reflected light (Fig. i).. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laborat
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
