RECORDS 493 



SECTION OF ANTHROPOLOGY AND PSYCHOLOGY. 



May 28, 1900. 



Section met at 8:30 P. M., Prof. J. McK. Cattell presiding. 



The minutes of the last meeting of Section were read and ap- 

 proved. 



The following program was then offered : 



Dr. G. B. Germann, The Acquirement of Motor Habits. 



Dr. C. H. Judd, Studies in Vocal P^xpression. 



Summary of Papers. 



The first paper reported some experiments in which the author 

 measured the degree of perfection attained in rapid naming of 

 one hundred color squares arranged in regular order, by the 

 time required to read the whole series. Results were presented 

 for the rapidity of reading at different stages ol practice and after 

 different intervals of discontinuance of practice. 



The second paper reported changes in pitch during the articula- 

 tion of single words. The pitch was determined by means of 

 enlarged records of diaphragm vibrations which w^ere compared 

 with the tracings made by a standard tuning fork. Twenty 

 records were reported. In general the accented syllable was 

 higher in pitch than the unaccented syllables, though this was 

 not true in such words as abhorrent and abnormal. The final 

 syllable in the twenty records showed a very general tendency 

 to fall off in pitch. The amount of change in such words as 

 educing and illusion will appear from some cases of the former. 

 The three syllables were as follows, case I, 161, 244, 171 (end 

 of the syllable being at 131); case II, 157, 265, 185 (end of 

 syllable 125); case III, 172, 248, 166 (end of syllable 123). 

 Other records did not show such marked changes. One of the 

 word abasement is as follows : 103, 130, 140. 



Chas. H. Judd, 



Secretary. 



