second and third on the left, the two orders being designated as _RRL_
and _RLL_ respectively. The subject was always informed of the order
in which the stimulations were to be given, so that any element of
surprise which might arise from it was eliminated. Occasionally,
however, through a lapse of memory, the subject expected the wrong
order, in which case the disturbance caused by surprise was usually so
great as to prevent any estimation.

The two types of series were taken under as similar conditions as
possible, four (or in some cases five) tests being taken from each
series alternately. Other conditions were the same as in the preceding
work. The results for the six subjects employed are given in Table IV.


TABLE IV.

_ST_= 5.0 SECS. TWO HANDS. 15 INCHES.

Subject. Average RT. No. of Series.
RRL. RLL.* (Table II.)
_Hs._ 4.92 6.55 (5.26) 50
_Sh._ 5.29 5.28 (5.34) 50
_Mr._ 5.02 6.23 (5.25) 60
_Mn._ 5.71 6.71 (6.19) 24
_A._ 5.34 5.89 (5.75) 28
_Sn._ 5.62 6.43 (5.47) 60

*Transcriber's Note: Original "RRL"

From Table IV. it is apparent at a glance that the new condition