1389 
TABLE III. 
eI Boys Girls Children 
Age 8 
SL a Quick rinks Slow Eee aati nf ofr fom | ES, peta es pie: | Slow | Quick fens Slow 
I 25 28 31 — 23 29 0. (25) 27 31 
8 Il 28 38 32 — 41 35 | (28) 38 33 
Il 41 34 31 — 36 36 (47) 35 36 
| 
I 32 26 | 29 = 32 29 (32) 28 29 
9 II 35 42 39 -- 38 34 | (35) 4l | 35 
Ill 33 32 32 — 30 31 | (33) 31 36 
eet en | 
| 24 21 28 28 24 31 25 26 34 
10 Il 37 38 34 28 42 34 35 40 30 
Ill 39 35 38 dt 34 35 40 34 36 
OAN ESE zaad len shoo loten aldeas vaan: ti hurt dike le 
I ee, 26 31 29 23 28 25 24 29 
11 II 38 44 45 33 37 39 36 38 42 
HI 40 30 24 38 40 33 39 38 29 
| aes 
I 29 28 = 32 25 PAT | 31 26 29 
12 I] 40 35 — 35 42 31 37 39 36 
HI 31 37 — 33 33 36 32 35 35 
difference in the percentage of the mistakes is however very small 
in the second and the third periods. The smallest number of mistakes 
by the quick workers among the boys and girls of all ages is made 
in the first period. This phenomenon, which recurs with a single 
exception also among the fairly quick and the slow workers of both 
sexes, finds an explanation in the fact that the children are still 
fresh in the first period and consequently the influence of fatigue 
does not yet inhibit the favourable action of the start, the adaptation 
and may be also that of practice. That most mistakes are made in 
the third period is not surprising when we consider that, as appeared 
in our discussion of the data of table I and II, the working rate of 
the quick workers is just greatest in the third period and that, as we 
stated before, the number of mistakes increases with the working-rate. 
