472 'Journal of Comparative Neurology atid Psychology. 



That the author can take the position he evidently does in this paper is some- 

 what surprising, since his own admirable study of the associations formed by this 

 animal is chiefly responsible for our judgments concerning the extremely low order 

 of its intelligence. In our own opinion, variability and length of reaction time of 

 animals as they are ordinarily recorded are, in any immediate sense, precarious 

 indices of intelligence, even when taken in conjunction with other "signs." 



Rouse's paper on the mental life of the domestic pigeon is pioneer work upon 

 that animal. It is divided into two parts — one treating of its emotional life, the 

 other, of the variety and complexity of its associations. We cannot at present 

 agree with the author in all of his conclusions, especially with the one which 

 asserts that a correspondence exists between "agreeable feelings and increased 

 breathing activity." The paper, as a whole, is of value, undoubtedly, in that it 

 gives us new data upon the behavior of the pigeon in specific and controlled situa- 

 tions. A more accurate comparison can now be made of the behavior of this 

 animal with that of other animals which have been studied in a similar manner. 



J. Carleton Bell's paper on the reactions of the crayfish requires an extended 

 review to do it justice. It treats of the reactions of this type of crustacean to (i) 

 white light; (2) colored light, and (3) to "objects." It discusses also the lack of 

 reaction in this form to "vibratory stimuli which to the human ear produce a sound." 

 He finds that the crayfish is positively geotactic, negatively barotactic, and, to a 

 high degree, positively thigmotactic. 



These papers thus summarily treated here are deserving of, and will undoubtedly 

 receive, separate and individual notice. 



JOHN B. WATSON 

 BOOKS AND PAMPHLETS RECEIVED 



Ingbert, Charles E. A case of reflex epilepsy. Reprinted from Alienist and Neurologist, Vol. 27, 



No. 3. 1906. 

 Davenport, C. B. Inheritance in poultry. Publications of the Carnegie Institution, No. 52, Washing- 

 ton, igoo. 

 Hargitt, Charles W. Experiments on the behavior of tubicolous annelids. Reprinted from Journ. 



Exp. ZooL, Vol. 3, No. 2. 1906. 

 Robinovitch, Louise G. Sommeil electrique (inhibition des mouvements volontaires et delasensi- 



libite) par les courants electriques de basse tension et a interruptions moderement frequentes. 



Epilepsie electrique et electrocution. Nantes, A. Dugas & Cie. Pp. 98. 1906. 

 Henmon, V. A. C. The time of perception as a measure of differences in sensation Anchives of 



Philosophy, Psychology and Scientific Methods, No. 8, July, 1906. 

 Ingegnieros, J. Les pretendus symptomes de I'hemiplegie hysterique. Reprinted from La Presse 



Medicate, No. 14, 17 Feb. 1906. 

 Ingegnieros, J. Nuova classificazione dei delinquenti, fondata sulla psicopathologia. Reprinted 



from // Manicomio, Anno 21, No. 3. 1906. 

 Thilly, Frank. Psychology, natural science and philosophy. Princeton Contributions to Psychology, 



Vol. 4, No. 3. 1906. 

 Warren, H. C. The fundamental functions of consciousness. Princeton Contributions to Psychology, 



Vol. 4, No. 3. 1906. 

 Dodds, Gideon S. The cranial nerves of one of the salamanders (Plethodon glutinosus). Reprinted 



from The Universtiy of Colorado Studies, Vol. 3, No. 2, March. 1906. 

 Barker, Lewellys F. A description of the Basle Anatomical Nomenclature [BNA]. Advance sheets 



from a forthcoming book on "Anatomical Terminoiogy,"publisned by P. Blak islands Son Sf Co. 



Philadelphia. Pp. 16. Copies of this pamphlet will be furnished by the publishers for free, 



distribution among students. 

 Jennings, H. S. Modifiability in behavior. II. Factors determining direction and character of move- 

 ment in the earthworm. Reprinted from Journ. Exp. ZooL, Vol. 3. 1906. 



