BIBLIOGRAPHY 311 



73. Schaefer, E., 1904. Theories of Ciliary Movement. Anat. Anz., 



Bd. 24, pp. 497-5II- 



74. Schuberg, A., 1905. Ueber Cilien und Trichocysten einiger Infu- 



sorien. Arch. f. Protist., Bd. 6, pp. 61-110. 



75. Williams, L. W., 1907. The Structure of Cilia, especially in 



Gastropods. Amer. Nat., vol. 41, pp. 545-551. 



CHAPTER VI 

 OTHER PROTOZOA 



76. Blackmail, F. F., 1900. The Primitive Algae and the Flagellata. 



Ann. Bot., vol. 14, pp. 647-688. 



77. Bourne, G. C., 1909. Comparative Anatomy of Animals., vol. i, 



2d ed. London. 



78. Calkins, G. N., 1909. Protozoology. Philad. 



79. Howard, L. O., 1900. Notes on the Mosquitoes of the United 



States. Bull. 25, New Series, U. S. Dept. Agric. Div. of Ento- 

 mology. 



80. Jennings, H. S., 1906. The Behavior of Lower Organisms. New 



York. 



81. Kent, W. S., 1881. Manual of the Infusoria. London. 



82. Keuten, J., 1895. Die Kerntheilung von Euglena viridis. Zeit. 



f. wiss. Zool., Bd. 60, pp. 215-235. 



83. Lang, A., 1901. Lehrbuch der Vergleichenden Anatomic der 



Wirbellosen Thiere, Bd. i, 2d pt. 



84. Minchin, E. A., 1903. In Lankester's Treatise on Zoology, pt. i, 



2d fascicle. 



85. Oltmanns, F., 1904. Morphologic und Biologic der Algen, Bd. 



i. Jena. 



86. Weismann, A., 1904. The Evolution Theory. London. Trans- 



lated by J. A. Thomson. 



CHAPTER VII 

 INTRODUCTION TO THE METAZOA 



87. Boveri, T., 1892. Die Entstehung des Gegensatzes zwischen den 



Geschlechtszellen und den somatischen Zellen bei Ascaris mega- 

 locephala. Sitz. ges. f. Morph. Physiol. Miinchen, Bd. 8. 



88. Calkins, G. N., and S. Cull, 1907. The Conjugation of Paramae- 



cium aurelia (caudatum). Archiv. f. Protist., B<J. 10, pp. 375-415 



