Btbliograpli i/ 371 



* 



PATTEN, W. S. 



1909. Herpetomonas lyyaei. Arch. f. Prot'k., Bd. 13, pp. 1-18. 

 PAYNE, F. 



1909. Review: Meves' The Chondriosomes as Bearers of Hered- 

 itary Qualities. Am. Nat., v. 43, pp. 190-192. 

 PECKHAM, GEO. W., and ELIZABETH S. 



1905. Wasps, Social and Solitary. Boston and Xew York. 

 PEARL, R. 



1915. Modes of Research in Genetics. New York. 

 PFEFFER, W. 



1900. The Physiology of Plants (Ewart trans.). Oxford. 

 PFLUGER, E. 



1875. Ueber die physiologische Verbrennung in den lebendigen Or- 



ganismen. Arch. f. ges. Physiol., Bd. 10. 

 PHLEPS, ED. 



1913. Die Tetanie, in Innere Sekretion und Nervensystem. Berlin. 



PlLLSBITRY, W. B. 



1908. Attention. New York. 

 PUTTER, A. 



1900. Studien iiber Thigmotaxis bei Protisten. Arch. f. Anat. u. 

 Physiol., Physiol. Abt., Supp. Bd., pp. 241-303. 



RAND, H. W. 



1904. The behavior of the epidermis of the earthworm in regenera- 

 tion. Arch. f. Entw'mch. Bd. 19, pp. 16-57. 



REICHERT, E. T., and BROWN, A. P. 



1909. The Differentiation and Specificity of Corresponding Pro- 

 teins and Other Vital Substances in Relation to Biological Classifi- 

 cation and Organic Evolution: The Crystallography of Hemoglobins. 

 Carnegie Inst. Publ. 116. Washington. 



RETZIUS, G. 



1909. Biologische Untersuch. Die Spermien des Menschen, Bd. 14, 

 p. 205. 



R HUMBLER, L. 



1912. 1 Organe des tierwchen Korpers. In Hdwb. d. Naturw. 

 1912.* Correlation, Ibid. 

 RIDDLE, O. 



1914. The determination of sex and its experimental control. Bull. 

 Am. Acad. Med., v. 15, no. 5. 



RITTER, W. E. 



1893. Tunicata of the Pacific Coast of North America. 1. Pero- 

 phora annectens n. sp. Proc. Cal. Acad. Sci., ser. 2, v. 4, pp. 37-85. 

 1896. Budding in compound ascidians, based on studies on Oood- 

 siria and Perophora. Jour. Morph., v. 12, pp.. 149-238. 

 1909. Halocynthia Johmtoni n. sp. A comprehensive inquiry as to 

 the extent of law and order that prevails in a single animal species. 

 Univ. Cal. Publ. Zool., v. 6, no. 4, pp. 65-114. 



1918. 1 The Higher Usefulness of Science. Boston. 



1918. 2 The Probable Infinity of Nature and Life. Boston. 

 RITTEH, W. E., and FORSYTH, R. 



1917. Ascidians of the littoral zone of southern California. Univ. 

 Cal. Publ. Zool., v. 16, no. 24, pp. 439-512. 



