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344. PORTER, J. P., 1904. A preliminary study of the psychology 



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346. 1906. The habits, instincts, and mental powers of 



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347. POUCHET, 1872. De Tinfluence de la lumiere sur les larves 



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348. POUCHET and JOUBERT, 1875. La vision chez les Cirrhipedes. 



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349. PRENTISS, C. W., 1901. The otocyst of decapod Crustacea. 



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350. PREYER, W., 1886. Ueber die Bewegungen der Seesterne. 



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351. PRITCHETT, A. H., 1904. Hearing and smell in spiders. 



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352. PUTTER, A., 1900. Die Reizbeantwortungen der ciliaten 



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353. 1900. Studien iiber Thigmotaxis bei Protisten. 



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354. RADL, E., 1901. Ueber d. Phototropismus einiger Arthro- 



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355. 1901. Untersuchungen iiber d. Lichtreactionen der 



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356. 1903. Untersuchungen iiber die Phototropismus der 



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357. 1905. Ueber das Gehor der Insekten. Biol. Cent., 



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358. 1906. Einige Bemerkungen und Beobachtungen iiber 



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359. RASPAIL, X., 1899. On the sense of smell in birds. Trans. 



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