CHAPTER IV 
MAP PRODUCTION 
The main compilation activity was in the 1:50 000 map with about -  - 
400 000 sq Km (in a high proportion, direct scribing for contours was 
used ). 
The 1:500 map for cadastral work had a very important impulse, in most 
cases using color photographs and precision plotters. 
Intermediate scales mainly used for engineering purposes, had a fair pro 
duction. Fm 
CHAPTER V 
NON TOPOGRAPHIC APPLICATIONS 
Just a few engineering applications of photogrammetry not having rela- - 
tion to topographical mapping were reported. At the moment, a broad - 
plan for archeological inventory is being lined out, photogrammetry and 
photointerpretation are to be the main tools in this research. 
Before the Mexican Photogrammetric Society was established, only a 
few mexican publications appeared. By now technical literature have 
increased, and one of the problems is that the Spanish terminology is 
rather poor, and not equivalent in different Spanish speaking countries. 
As a policy the operators were trained starting as assistant operator. 
In other organizations a complete high school standard was required, - 
and after passing psichotechnic and oftalmologic examination, a short - 
theoretical curse was given and afterwards training in especialized fields 
took place. 
CHAPTER VI 
PHOTOINTERPRETATION 
In the reported period the main photointerpretation applications were the 
following : 
Geology (Medium level and economic geology) 
Forestry 
Land Use 
Edaphology 
Potential Land Use