250 Journal of Applied Microscopy. 



Messrs. B. M. Duggar, Cornell University, and F. C. Stewart, New York Experiment 

 Station : Different Types of Plant Diseases due to a Common Rhizoctonia. 



Mr. F. C. Stewart, New York Experiment Station : The Stem Rot Diseases of the 

 Carnation. 



AMERICAN PSYCHOLOGICAL ASSOCIATION. 



Mr. E. a. Kirkpatrick : The Development of Voluntary Movement. 



Professor E. B. Delabarre : Report on the Effects of Cannabis Indica. 



Dr. Dickinson S. Miller: The Psychological Imagination. 



Professor George T. Ladd : Certain Hindrances to the Progress of Psychology in America. 



Mr. Henry Rutgers Marshall : Reason a Mode of Instinct. 



Professor Wesley Mills: Nature of Animal Intelligence and how to Study it. 



Miss Mary Whiton Calkins : Psychological Classification. 



Professor Hugo Muensterberg (Address of the President): Psychology and History. 



Professors James, Ladd, Hibben, Miller, Caldwell, and Armstrong (discussion): The 



Relations of Will to Belief. 

 Professor J. McKeen Cattell : Exhibition of Instruments for the Study of Movement and 



Fatigue. 

 Professor Frederic S. Lee : The Nature of Muscle Fatigue. 

 Professor Hugo Muensterberg : The Physiological Basis of Mental Life. 

 Professor G.Carl Huber: Observations on the Innervation of the Intracranial Vessels. 

 Professor G. T. W. Patrick : Confusion of Tastes and Odors. 

 Professor C. F. Hodge (with Mr. H. H. Goddard) : Possible Amoeboid Movements of the 



Dendritic Processes of Cortical Nerve Cells. 

 Dr. E. W. Scripture : Methods of Demonstrating the Physiology and Psychology of Color. 

 Professor G. W. Fitz : A New Chronoscope. 

 Professor Ogden N. Rood : On the Flicker Photometer. 



Mr. J. E. Lough : Changes in Rate of Breathing during Various Mental States. 

 Dr. Robert Mac Dougall : Recent Investigations at the Harvard Laboratory. 

 Dr. E. W. Scripture : Recent Investigations at the Yale Laboratory. 

 Dr. John P. Hylan : Recent Investigations at the Illinois Laboratory. 

 Dr. G. V. Dearborn (Introduced by Professor Royce): Recognition under Objective 



Reversal. 

 Dr. Arthur Mac Donald : Further Measurements of Pain. 

 Professor W. A. Hammond: The Function of Will in Aristotle's Ethics. 

 Professor W. G. Everett : Ethical Scepticism. 



Professor William Caldwell: Professor Baldwin's " Social and Ethical Interpretation." 

 Professor J. Mark Baldwin : Genetic Determination of the Self. 



Dr. G. Tosti (Introduced by Professor Baldwin): Art in the Light of Modem Psychology. 

 Professor Charles H. Judd: A Study of Geometrical Illusions. 

 Miss Margaret Washburn : Subjective Colors and the After Image. 

 Mr.s. Christine Ladd Franklin : Thtee New Cases of Total Color Blindness. 

 Professor George T. Ladd : A Color Phenomenon. 



E. M. B. 



Note — The statement in the December Journal that the division of nerve 

 cells had been observed, was due to a typographical error. No should be read 

 in place of the in line 39, page 219. An error in printing also occurs in the 

 next paragraph. It should read, " attention is called to the importance of the 

 question whether a genetic connection may be established between this so-called 

 centrosome, and that which exists during cell division." In the title read " hvo 

 Polychaete Annelids " instead of " the Polychaete Annelids." 



