896 



SCIENCE 



[N. S. Vol. XXXVIII. No. 990 



Henri de Varigny in the " Eevue des Sci- 

 ences " of the Journal des Dehats (Paris, 

 April 17, 1913), discussing the above essay, 

 states that under the same circumstances he 

 has an impression like a slight vertigo, the 

 feeling being localized clearly at the base of 

 the skull. 



The work in this investigation has been 

 aided by a grant by the New York Academy 

 of Sciences from the Esther Herman Fund. 



TABLE II 



Average Error and Variation in the Case of those 

 V Subjects Having Imaginary Maps 



Column 2 gives the average angle between the 

 true directions of distant places and the directions 

 in which the subject thinks these places lie. 



Column 3 indicates the inconstancy of this angu- 

 lar displacement or deviation. 



TABLE III 



Deviation of Subjects who have No Imaginary 



J. H. M.*. .North Pole 6° clockwise. 



London 31° clockwise. 



Panama 1 8° counter-clockwise. 



San Francisco 16° counter-clockwise. 

 3 Some errors clockwise, others counter-clockwise. 

 See Table I. 



E. F. K.4.. North Pole 

 London 

 Panama 

 San Francisco 



W. H. G.5.. North Pole 

 London 

 Panama 



San Francisco 



H. W. W.4 North Pole 

 London 

 Panama 

 San Francisco 



H. M. E.< 



J. C. G.4 



.North Pole 

 London 

 Panama 

 San Francisco 



.North Pole, 

 London 

 Panama 

 San Francisco 



. North Pole 



London 



Panama 



San Francisc-o 



.North Pole 

 London 

 Panama 

 San Francisco 



14° clockwise. 



43° clockwise. 



4° counter-clockwise. 



14° clockwise. 



14° clockwise. 



41° clockwise. 



6° counter-clockwise. 



14° clockwise. 



28° clockwise. 



32° clockwise. 



26° clockwise. 



18° clockwise. 



8° counter-clockwise. 



4° clockwise. 



36° counter-clockwise. 



31° counter-clockwise. 



8° clockwise. 



17° clockwise. 



4° clockwise. 



14° counter-clockwise. 



34° clockwise. 



48° clockwise. 



2° counter-clockwise. 



16° clockwise. 



4° counter-clockwise. 



8° clockwise. 



13° counter-clockwise. 



20° counter-clockwise. 



TABLE IV 



Average Error and Variation in the Case of Those 

 Subjects Having No Imaginary Maps 



Mean Error ol Average Varia- 



* Subject is not usually confused as to directions 

 on coming out of theaters and subways. 



= Subject is confused as to directions on coming 

 out of theaters and subways. 



'i Some errors clockwise, others counter-clockwise. 

 See Table III. 



