REFERENCES 501 [in] Aitken, A. C. (1937), 'The Evaluation of the Latent Roots and Vectors of a Matrix/ Proc. Roy. Soc. Edin., LVII, pp. 269-304. [112] Spearman, C. (1938), 'The Proposed Explanation of Indivi- dual Differences of Ability by Sampling,5 Brit. J. Psych XXIX, pp. 182-91. [113]------ (1938), Psychology Down the Ages (London: Macmillan). [114] Hurt, C. (1938), 'The Analysis of Temperament,' Brit. J. Med. Psych., XVII, pp. 158-88. [115] _ (1938), 'The Unit Hierarchy and its Properties/ Psycbometrika, III, pp. 151-68. [116] ------ (1938), c Factor-Analysis by Submatrices/ J. of Psych., VI> PP- 339~75- [117] Myers, C. S., Spearman, C., Thomson, G. H., Burt, C., ei al (1938), * Discussion on Quantitative Methods in Psychology' (abstracts only), Proc, Roy. Soc., Ser, B, CXXV, pp. 415-34. [n8] Dcwar, H. (1938), ' A Comparison of Tests of Artistic Appre- ciation/ .Brit. j. Psych., VIII, pp. 29-49. [119] Williams, E. D., Winter, L., and Woods, J. M. (1938), ' Tests of Literary Appreciation/ Brit. J. Educ. PsycL, VIII, pp. 265-84, [120] Vernon, P. E. (1938), 'The Assessment of Psychological Qualities by Verbal Methods' (London : H.M. Stationery Office), [121] Burt, C. (1938), * Recent Developments of Statistical Method in Psychology/ Occupational Psychology, XII, pp. 169-77. [122] Thurstone, L, L. (1938), Primary Mental Abilities (Chicago : University of Chicago Press), [123] Euros, Q. K, (1938), The 1938 Mental Measurements Tearbook. (Rutgers Univ, Pub.)- [124] Thomson, G. H. (1938), * The Influence of Univariate Selection on the Factorial Analysis of Ability/ Brit, J. Psych., XXVIII, pp, 451-9, [125] Thomson, G, H., and Lederman, W, (1938), * The Influence of Multivariate Selection on the Factorial Analysis of Ability/ Brit. J. Psych., XXIX, pp. 66-73. [126] Mather, K. (1938), The Measurement of Linkage in Heredity (London: Methuen), [127] Frazer, R, A., Duncan, W. J,, and Collar, A. R. (1938), Elementary Matrices and some Applications to Dynamics (Cambridge ; University Press). [uS] Burt, C, (1939), 'The Relations of Educational Abilities/ Brit. J. Educ. Psyth, IX, pp. 45-71.