CONTENTS 
SOMMAIRE 
General report of Commission I 
Rapport général de la Commission 
General report of Commission II 
Rapport général de la Commission 
General report of Commission III 
Rapport général de la Commission 
General report of Commission IV 
Rapport général de la Commission 
Report for experiments executed by IV: 2 
Rapport sur travaux expérimentaux exécutés par 
General report of Commission V 
Rapport général de la Commission 
General report of Commission VI 
Rapport général de la Commission 
General report of Commission VII supplément 
Rapport général de la Commission 
The following papers, which belong to Part 4, are bound together with the 
General report of Commission VII: 
Les communications suivantes, qui appartiennent au Fascicule 4, sont reliées avec 
le Rapport général de la Commission VII: 
VII 
H 2- 
- 97 
G. Heath, USA. A comparison of two basic theories of land 
classification and their adaptability to regional photo inter 
pretation key techniques. 
VII 
R 3' 
~3 2 5 
E. Rogers, USA. Problems in comparing photo interpretation 
research results from different studies. 
VII 
S 1- 
- 4 2 
K. Stone, USA. Air photo interpretation procedures. 
VII 
YS I- 
—296 
H. Young—E. Stoeckeler, USA. Quantitative evaluation of 
photo interpretation mapping.