122 MEMOIKS NATIONAL ACADEMY OF SCIENCES. [vol.xv, 



psychological examining and the insurance or disability claims of psychological personnel have 

 been necessarily omitted. 



The two editions of the Examiner's Guide reproduced in the following pages are designated 

 respectively as "Examiner's Guide, first revision," and "Examiner's Guide, second revision." 

 The first of these differs from the original Examiner's Guide published in July, 1917, only in 

 the respects indicated on p. 325. 



In addition to the first and second revised editions of the complete guide, the specially pre- 

 pared guide for use in the Students' Army Training Corps is also reproduced in part (pp. 200 

 to 201). 



The examination blanks and report forms used in connection with the Examiner's Guide 

 are reproduced on pages 202 to 292; materials and procedures are pictured in plates 5 to 21. 



