MOVEMENTS, ETC., OF FRESH-WATER PLANARIANS. 711 



Jennings, 11. S. '99, c. — "Tlie PsyclioloQ:y of a Protozoan," ' Ainer. Joiirii. 

 Psychol.,' vol. X, pp. 503 — 515. 



Jknnings, II. S. : 00. — "Studies on Reactions to Stimuli in Unicellular 

 Orpjanisms : V, On the Movements and Motor Reflexes of the Flagellata 

 and Ciliata," ' Amer. Journ. Physiol.,' vol. iii, pp. 229 — 200. 



Jennings, H. S. :00, r^ — ■" Tlie Behavi')nr of Unicellular Organisms," 

 ' Woods HoU Lectures for 1899,' pp. 93-112. 



Jennings, II. S. : 00, i. — " Studies on Reactions to Stimuli in Unicellular 

 Organisms: VI, On the Reactions of Chilomonas to Organic Acids," 

 'Amer. Journ. Piiysiol.,' vol. iii, p|>. 397 — 403. 



Jennings, II. S. : 00, c. — " Reactions of Infusoria to Chemicals : a Criti- 

 cism," ' Amer. Nat.,' vol. xxxiv, pp. 259—205. 



Jennings, H. S. :01. — "On the Significance of the Spiral Swimming of 

 Organisms," ibid., vol. xxxv, pp. 369 — 378. 



Jennings, II. S., and Moore, E. M. : 02. — " Studies on Reactions to Stimuli 

 in. Unicellular Organisms : VIII, On the Reactions of Infusoria to 

 Carbonic and other Acids, with Especial Reference to the Cause of the 

 Gatherings spontaneously formed," 'Amer. Journ. Physiol.,' vol. vi, 

 pp. 233—250. 



JiJiMA, J. '84. — " Untersuchungen iiber den Bau und die Entwicklungs- 

 geschichte der Siisswasser Dendrocoelen (Tricladen)," ' Zeitschr. f. wiss. 

 Zool.,' Bd. xl, pp. 359— 4G4, Taf. xx— xxiii. 



Jordan, H. : 01. — "Die Physiologic der Locomotion bei Aplysia lima- 

 cina," ' Inaug. Diss. Bonn,' 1901 (Druck von Oldenbourg, Miinchen), 

 p. 51, Taf. i. Also in ' Zeitschr. f. Biol,' Bd. xli, pp. 196—238, Taf. ii. 



Kennel, J. vox. 'SS. — "Untersuchungen an neuen Turbcllarien," 'Zool. 

 Jahrb.,' Abth. Anat. und Ont., Bd. iii, pp. 447 — 486, Taf. xviii, xix. 



Lang, A. '81. — "Untersuchungen znr vergleichenden Anatomic und Ilis- 

 tologie des Nervensystems der Plathelminthen : IV, Das Nervensystem 

 der Tricladen," 'Mitth. a. d. Zool. Stat. Neapcl,' ]?d. iii, pp. 53 — 70, 

 Taf. v, vi. 



Lang, A. '81, a. — " Untersuchungen znr vergleichenden Anatomic und 

 Histologic des Nervensystems der Plathelminthen : V, Vergleichende 

 Anatomic des Nervensystems der Pialhelminthen," ' Mitth. a. d. Zool. 

 Stat. Neapel,' Bd. iii, pp. 76—95. 



Lang, A, '84. — " Die Polycladen (Seeplanarien) des Golfes von Neapel und 

 der angrenzende Meeresabschnitte," ' Fauna u. Flora d. Golfes von 

 Neapel,' XI Monographic (Leipzig, Engelmann), pp. x and 688, 

 Taf. xxxix. 



