358 REPORTS ON THE STATE OF SCIENCE. 
In Schedule 2 the records of the hair and eye colour are included 
to enable some degree of racial comparison to be made. These colours 
appear to be the most important racial characters, easily measured in the 
British Isles. 
Schedules 3 and 4 include measurements of chest, either by the tape 
or by the callipers ; the calliper measurements are preferable because 
comparison can then be made with the adults of both classes. It would 
be advisable that these dimensions should be measured both at full 
inspiration and full expiration, and a record made of the resulting 
excursion. 
Schedules 5, 6, and 7 include head measurements, which are important 
owing to the lack of information we possess at the present time as to the 
variations in this country. 
Important results may also be anticipated from the opportunity thus 
afforded of comparing the various head-forms with the different degrees 
of mental efficiency. 
In addition to the Schedules put forward, any school at which there 
are ample opportunities for investigation could adopt any or all of the 
measurements described in the Report for 1905. The Schedules are only 
suggestions as to what could be done with limited opportunities, and are 
in no wise intended to restrict investigation. 
Report of the Psychological Sub-Committee. 
The Sub-Committee invited the British Psychological Society to 
nominate two of its members to co-operate with the Sub-Committee. Mr. 
A. F. Shand and Mr. W. H. Winch, having been chosen by the Society 
for this purpose, have been accordingly co-opted by the Sub-Committee. 
The list of mental characters drawn up by Mr. McDougall and 
embodied in the Report submitted at the York meeting of the Associa- 
tion has been discussed at two meetings of the British Psychological 
Society, and has been amended and extended by the Sub-Committee in 
the light.of these discussions. The amended list is submitted with this 
Report. 
The Sub-Committee recommend that the list should be printed, and 
that, before any use of it on a large scale is attempted, it should be 
issued to a limited number of specially qualified school-teachers, who 
should be invited to fill in the schedules of characters for groups of pupils 
with whom they are well acquainted. In this way, it may be hoped, 
some data may be obtained for the formation of an opinion as to the 
applicability and reliability of this method of procedure. From this 
point of view it appears especially important to secure independent 
returns from two or more teachers in regard to identical groups of pupils, 
as the degree of correspondence between two or more such independently 
made Reports referring to the same group of pupils would indicate the 
degree of objectivity of the Reports. 
The Sub-Committee are of opinion that, though data of some value 
may possibly be obtained by the issue of the list of mental characters to 
school-teachers and others, the survey of mental characters cannot be 
satisfactorily carried out save by the aid of observers specially trained 
in the methods of mental measurement, who would make a series of 
measurements of the capacities of each individual according to a scheme 
which has yet to be drawn up ; they recognise that the estimation of 
