544 SIGN LANGUAGE AMONG NORTH AMERICAN INDIANS. 
SCHEME OF ILLUSTRATION. 
In the following pages the scheme of graphic illustration, intended 
both tosavelabor and secure accuracy, which was presented in the Intro- 
duction to the Study of Sign Language, is reproduced with some improve- 
ments. It is given for the use of observers who may not see that pub- 
lication, the material parts of which being included in the present paper 
it is not necessary that the former should now befurnished. The TyPEs 
oF HAND POSITIONS were prepared for reference by the corresponding 
letters of the alphabet to avoid tedious description, should any of them 
exactly correspond, or by alteration, as suggested in the note following 
them. These, as well as the OUTLINES OF ARM POSITIONS, giving 
front and side outlines with arms pendant, were distributed in separate 
sheets to observers for their convenience in recording, and this will still 
be cheerfully done when request is made to the present writer. When 
the sheets are not accessible the TYPES can be used for graphic changes 
by tracing the one selected, or by a few words indicating the change, as 
shown in the EXAMPLES. The OUTLINES OF ARM POSITIONS can also 
be readily traced for the same use as if the sheets had been provided. 
It is hoped that this scheme, promoting uniformity in description and 
illustration, will be adopted by all observers who cannot be specially 
addressed. 
Collaborators in the gestures of foreign uncivilized peoples will confer 
a favor by sending at least one photograph or sketch in native costume 
of a typical individual of the tribe, the gestures of which are reported 
upon, in order that it may be reproduced in the complete work. Such 
photograph or sketch need not be made in the execution of any partic- 
ular gesture, which can be done by artists engaged on the work, but 
would be still more acceptable if it could be so made. 
