. Contributions. Biology. b b. Fig. 12. For descriprion, see Case i, Cor. I. Fig. 13. For description see Case i. Cor. 2. tion and the side swing (Cor. i). That is to say, the larva per- formed a backward side-somersault, became oriented as in Cor- ollary I and 2, again turned the back uppermost, with the eyes directed away from the source of light, and continued its progress- ive orientation, in one sense or the other. Case 2. Larva lying with back downward; head toward light—In these instances, the larva was oriented head toward the (closed) window, and back downward. The rays were introduce


. Contributions. Biology. b b. Fig. 12. For descriprion, see Case i, Cor. I. Fig. 13. For description see Case i. Cor. 2. tion and the side swing (Cor. i). That is to say, the larva per- formed a backward side-somersault, became oriented as in Cor- ollary I and 2, again turned the back uppermost, with the eyes directed away from the source of light, and continued its progress- ive orientation, in one sense or the other. Case 2. Larva lying with back downward; head toward light—In these instances, the larva was oriented head toward the (closed) window, and back downward. The rays were introduced from before, as in Case i. It may be said that this orientation was difficult to obtain. Often it was necessary to wait fifteen minutes. 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 Brown University. Biological Laboratory. Providence, R. I


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