386 LIGHT AND THE BEHAVIOR OF ORGANISMS 



Krabbe, G., 1889. Zur Kenntniss der fixen Lichtlage der Laubblatter. 



Jahrb. f. wiss. Bot., Bd. 20, pp. 211-260. 

 Kraus, G., 1876. Versuche mit Pflanzen im farbigen Licht. Ber. Sit- 



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Langley, S. p., 1884. Researches on Solar Heat and its Absorption by 

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LiLLiE, R. S., 1903. Structure and Development of the Nephridia. Mit. 

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LoEB, J., 1888. Die Orientirung der Thiere gegen das Licht. (Thierischer 

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, 1888a. Die Orientirung der Thiere gegen die Schwerkraft der 



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• , 1889. Der Heliotropismus der Thiere und seine Ubereinstimmung 



mit dem Heliotropismus der Pflanzen. Wiirzburg. 118 pp. 



, 1893. Uber kiinsthche Umwandlung positiv heliotropischer Thiere 



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— , 1897. Zur Theorie der physiologischen Licht- und Schwerkraft- 



wirkungen. Ibid., Bd. 66, pp. 439-466. 



— , 1900. Comparative Physiology of the Brain and Comparative 



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^. 1904. The Control of Hehotropic Reactions in Fresh- water Crus- 

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, 1906. The Dynamics of Living Matter. New York. 233 pp. 



, 1906a. Uber die Erregung von positiven Heliotropismus durch 



Saure, insbesondere Kohlensaure, und von negativen Heliotropis- 

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PP- 564-581- 

 , 1907. Concerning the Theory of Tropisms. Jour. Exp. ZooL, 



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 • ,1909- Die Bedeutung der Tropismen fiir die Psychologie. Leipzig, 



51 PP- 

 LovELL, J. K., 1909. The Color Sense in the Honey-bee; is Conspicuous- 



ness an Advantage to Flowers? Amer. Nat., Vol. 43, pp. 338-349. 

 Lubbock, Sir J., 1881. On the Sense of Color among Some of the Lower 



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 ■ , 1882. On the Sense of Color, etc.. Part II. Ibid, Vol. 17, pp. 205- 



214. 

 , 1888. On the Senses, Instincts, and Intelligence of Animals, with 



Special Reference to Insects. New York. 292 pp. 



1895. Ants, Bees and Wasps. New York. 448 pp. Preface to 



original edition dated 1881. 



Luther, R., and Forbes, G. S., 1909. A Quantitative Study of the Photo- 

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Lyon, E. P., 1906. Note on the Heliotropism of Palaemonetes larvae. 

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Mass art, J., 1888. Recherches sur les organismes inferieurs, I. La loi de 

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 ser. 3, t. 16, pp. S9^S91' 



