1913-14.] Analytical Study of the Mechanism of Writing. 237 
IV. Results of Study of Writing Pressure. 
Traces obtained with the two pieces of pressure apparatus are shown 
(fig. 5). At the same time it might be well to indicate some of the more 
important results obtained in the investigation of writing pressure. 
VnCTUlTT' 
Fig. 5. 
I. to III. Point pressure tracings from children. Time record in seconds by Jacquet Chronograph. 
l a. Child of six. Words “ The cow gives us milk. ” 
lb. Child of six (first attempt at script). Words “ A man can.” 
l c. Child of six (printing). Words “ A man can run.” 
Ila. Pencil writing, and II&. Pen writing of child of eight. Words “ Moray House School,” written twice in 
each case. 
III. Child of eleven. Pencil writing. Words “ Moray House School,” written twice. 
IV. and V. Point pressure tracings from adults. Time record in J secs, by vibrating spring. 
IVa. Pencil writing, ordinary rate. Words “ Moray House School,” written twice. 
IV&. Pencil writing by same subject, maximum rate. Words “ Moray House School,” written four times. 
V. Pen writing, slow and fast. Words “ Moray House School, written once slow and twice fast. 
VI. and VII. Grip pressure tracings from adults and child of eleven. Time records for adults in i secs, and for 
child in secs. 
Via. Adult pencil writing. Words “ Moray House School.” 
VI6. Adult pen writing. Words “ Moray House School Moray.” 
VII. Child’s pencil writing. Words “Moray House School ” twice, slow and fast. 
The most interesting results are probably those indicative of the 
differences between adult writing and child writing. The grip pressure of 
the adult nearly always shows a rhythmical rise and fall of pressure, which 
is almost as regular in the tracing as the vibrations in the tracing of a 
