436 STELLA B. VINCENT 



attitudes. In their cases the author, to account for the suc- 

 cessful reactions, assumes that some intra-organic non-orienting 

 representative factor must exist. Thus the reaction cue for all 

 the reagents except the older children is thought to be sensory 

 rather than imaginal and the non-orienting sensory factors are 

 believed to have a memory function which is designated here 

 as sensory thought. This type of mental control, the author 

 reasons, is probably earlier than imaginal thought. The mono- 

 graph is a valuable one for which a brief review is inadequate. 



REFERENCES 



1. Assagioli, R. I cavalli pensanti e i lovo critici. Psiche, 2, 349-372. 



2. Babak, E. Ueber den Farbensinn des Frosches vermittels Atemreaktion un- 



tersucht. Zeit. f. Sinnesphysiol., 47, 331-351. 



3. Baldasseroni, V. Due bestie intelligent. Psiche, 2, 390-392. 



4. Bingham, H. C. Size and Form Perception in Gallus domestica. Jour. 



Animal Behav., 3, 65-113. 

 4aBARROWS, W. B. Concealing Actions of the Bittern Bautaurus Lentiginosus. The 

 Auk, 30, 187-190 



5. Bergtold, W. H. A Study of the House Finch. The Auk, 30, 40-73. 



6. Buttel-Reepen, v. Meine Erfahrung mit den "denkenden" Pferden. Natur- 



wiss. Woch., 28, 241-245, 257-263. 



7. Claparede, E. Les chevaux savants d'Elberfeld. Archiv. de Psychol., 12, 



263-304. 



8. Claparede, E. Les chevaux savants d'Elberfeld. Bull. soc. franc, de Phil., 



13, 115-134. 



9. Claparede, E. Encore les chevaux d'Elberfeld. Archv. de Psychol., 13, 



244-284. 



10. Claparede, E. De tankande hastorna i d'Elberfeld. (Trans.) Psyke, 8, 



18-59. 



11. Cooke, W. W. The Relation of Bird Migration to the Weather. The Auk. 



38, 205-221. 



12. Copeland, M. The Olfactory Reactions of the Puffer or Swellfish, Spheroides 



Maculatus. Jour. Exper. Zool, 12, 263-268. 



13. Copeland. M. The Olfactory Reactions of the Spotted Newt. Jour. Animal 



Behav., 3, 260-273. 



14. Craig, Wallace. The Stimulation and the Inhibition of Ovulation in Birds. 



Jour. Animal Behav., 3, 215-221. 



15. Ettinger, M. Der streit um die rechnenden Pferd. (Vortr.) (Samml. 



Natur und'Kultur 6), Munchen: Verl. Natur und Kultur, S. 54. 



16. Franz, S. I. Observations on the Preferential Use of the Right and Left 



Hands by Monkeys. Jour. Animal Behav., 3, 140-144. 



17. Frisch, K. v. Ueber farbige Anpassung bei Fischen. Zool. Jahrb., Abt. f 



^ allg. Zool. u. Physiol, d. Tiere, 32, 171-230. 



18. Frisch, K. v. Ueber die Farbenanpassung des Crenilabrus. Zool. Jahrb., 



Abt. f. allg. Zool. u. Physiol, d. Tiere, 33, 150-164. 



19. Frisch, K. v. Sind die Fische Farbenblind ? Zool. Jahrb., Abt. f. allg. Zool. 



u. Physiol, d. Tiere, 33, 107-126. 



20. Frisch, K. v. Farbung und Farbensinn der Tiere. Sitzber. d. Gesell. f. Morph. 



u. Physiol, Munch., 28, 30-38. 



21. Frisch, K. v. Weitere Untersuchungen uber den Farbensinn der Fische. 



Zool. Jahrb., Abt. f. allg. Zool. u. Physiol, d. Tiere, 34, 43-86. 



22. Gregg, F. M. and McPheeters, C. A. Behavior of Raccoons to a Temporal 



Series of Stimuli. Jour. Animal Behav., 3, 241-259. 



