_B._ B^{1-4} 1 1(1) 0 0 0 0(1) 0 0 B^{6-8} 1 2 1 2 1 1 1 0 1 0 1 0 B^{9-12} 0 2(1) 0 0(1) 0 0(1) 0(1) 2 0 2 0 1 B^{13-16} 1 3 1 1 1 1 1 2 0 1 0 1 Total 3 8(2) 2 3(1) 2 2(1) 2(1) 4(1) 1 3 1 2 Per cent. 19 57 13 21 13 13 13 27 7 20 7 13 _Ho._ B^{1-4}¹ 3 2(1) 2 2(1) 1 0(1) 1(2) 1(2) 1(2) 0(2) 0(2) 0(2) B^{6-8} 1 1(1) 1 0(1) 1 0 0 1(1) 1 1 0 1 B^{9-12} 0(1) 1 0(1) 1 0(1) 0 1 1 1 1 0 0 B^{13-16}³ 0 0 0 0 0 0 0(1) 4 0(1) 2 0(1) 0 Total 4(1) 4(2) 3(1) 3(2) 2(1) 0(1) 2(3) 7(3) 3(3) 4(2) 0(3) 1(2) Percent. 33 30 25 23 17 0 17 58 25 33 0 8 _Mo._ B^{1-4} 3 3 3 1 4 1 0 2 0 2 0 2 B^{5-8} 1 4 1 1 1 2 1 2(2) 1 1(2) 1 1(2) B^{9-12} 2 4 2 4 1 4 0(1) 3(1) 1(1) 3(1) 1(1) 2 B^{13-16} 2(2) 4 2(2) 4 2(2) 2 1 4 1 4 1 4 Total 8(2) 15 8(2) 10 8(2) 9 2(1) 11(3) 3(1) 10(3) 3(1) 9(2) Percent. 57 94 57 63 57 56 13 85 20 79 20 69 ¹Four presentations in learning. ²Five presentations in learning. ³Five days' interval instead of two. In the following summary the recall after two days is combined from Tables I. and II. for the three subjects _M_, _S_ and _Hu_, there being no important difference in the conditions of experimentation. For the three other subjects this summary is merely a résumé of Table II. The recall after nine and sixteen days in Table II. is omitted, and will be taken up later. The figures are in all cases based on the remainders left after those couplets in which indirect associations occurred were eliminated both from the total number of couplets learned and from the total number correctly recalled. _E.g._, in the case of nouns, _M_ learned, in all, 42 couplets in the _A_ and _B_ sets, but since in 3 of them indirect associations occurred, only 39 couplets are left, of which 21 were correctly recalled. This gives 54 per cent. SUMMARY OF RECALL AFTER TWO DAYS.--FROM TABLES I. AND II. N. O. V. M. M. 54 per cent. 62 per cent. 63 per cent. 61 per cent. S. 8 " 21 " 7 " 12 " Hu. 11 " 30 " 5 " 59 " B. 19 " 57 " 13 " 27 " Ho. 33 " 30 " 17 " 58 " Mo. 57 " 94 " 13 " 85 " Av. 30 per cent. 49 per cent. 20 per cent. 50 per cent.