Page:Memory (1913).djvu/111

tions 6 sheets were prepared. The fronts and backs of these could be easily distinguished but not the sheets themselves. The thirty sheets were shuffled together and then laid aside until any memory as to the occurrence of the separate syllables in definite transformations could be considered as effaced. Then the front side, and 24 hours later, the reverse side of a given sheet were learned by heart. The times necessary for learning the separate series were noted, but they were not assembled and further elaborated until all 30 sheets had been completed. Following are the numbers.

1) With derivation of series transformed by skipping one intermediate syllable.

The original series were learned in x seconds	The corresponding derived series, in y seconds	The latter, therefore, with a saving of z seconds
x=	y=	z=
1137	1081	56
1292	1045	247
1202	1237	―35
1272	1202	70
1436	1299	137
1340	1157	183
m 1280	1170	110

2) With derivation of the series by skipping two intermediate syllables.

x=	y=	z=
1415	1232	183
1201	1290	―89
1291	1156	135
1358	1153	205
1232	1254	―22
1168	1107	61
m 1278	1199	79

3) With derivation of the series by skipping three intermediate syllables.

x=	y=	z=
1205	1166	39
1339	1068	271
1179	1293	―114
1238	1196	42
1257	1231	26
1240	1122	118
m 1243	1179	64