. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3io VICTOR E. SIlKLFOkM). Pool Animals. Notropis swain quickly aboul but spent most of its time- in the medium and light I birds. The other two species of fish and spent most of their time in the darker third while the other species were not active. 2. METHODS OF SHOW TESTS AND TYPICAL RESULTS. The final tests or show experiments were made in a Yerkes light grader such as is described by Mast ('n p. 61), (fig. 35). A 132-watt Nernst lamp was used 50 cm. from the lens (with a triangle of 70 mm. base and 82 mm. alt
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3io VICTOR E. SIlKLFOkM). Pool Animals. Notropis swain quickly aboul but spent most of its time- in the medium and light I birds. The other two species of fish and spent most of their time in the darker third while the other species were not active. 2. METHODS OF SHOW TESTS AND TYPICAL RESULTS. The final tests or show experiments were made in a Yerkes light grader such as is described by Mast ('n p. 61), (fig. 35). A 132-watt Nernst lamp was used 50 cm. from the lens (with a triangle of 70 mm. base and 82 mm. altitude) and the experimen- tal box (5 cm. wide by 25 cm. long) was turned at an angle of 45 degrees to the direction of the light and with the nearest comer at the focal point of the lens and at the left end of the gradient field. A glass plate (G of Fig. 36) was placed across the corner. DRAIN FIG. 37. Showing the relation of the hollow-walled glass-sided experimental box. The water came from the supply pipe, passed through the coil which rested in a vessel of water kept hot by a bunsen burner. The flow and gas were readily adjusted to give any desired temperature within experimental needs. The water passed from the coil to the hollow wall of the light box. It was necessary to empty the box often and when this was done the flow was temporarily turned out through the drain nearest the coil without changing the rate of flow. to prevent the animals from moving into the darkness. The experimental box had glass sides and metal ends. All parts not made from glass were .painted dead black and the light which. 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, 1870-194
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
