This movement was almost invariably accompanied by an objectless and fruitless symmetrical movement of the other hand.
The results of the entire series of experiments on the use of the hands may be stated as follows, mainly in the words in which they were summarily reported some time ago: 1.

I found no continued preference for either hand as long as there were no violent muscular exertions made (based on 2,187 systematic experiments in cases of free movement of hands near the body--i.

e., right hand, 577 cases; left hand, 568 cases--a difference of 9 cases; both hands, 1,042 cases; the difference of 9 cases being too slight to have any meaning); the period covered being from the child's sixth to her tenth month inclusive.
2.

Under the same conditions, the tendency to use both hands together was about double the tendency to use either (seen from the number of cases of the use of both hands in the figures given above).
3.

A distinct preference for the right hand in violent efforts in reaching became noticeable in the seventh and eighth months.
Experiments during the eighth month on this cue gave, in 80 cases, right hand, 74 cases; left hand, 5 cases; both hands, 1 case.