Finally, in situations where orthoplans are not desired, but 
only conventional topographic maps, it may be entirely desirable 
to utilize one analytical plotter with orthoptinter rectifier to 
produce selectively rectified diapositives to feed many simple 
plotters. Triangulation end individual model orientations would 
be accomplished in an optimum manner on the analytical plotter and 
all drawing of the map manuscript would be done on the simple 
plotters. 
The techniques proposed in this paper have yet to be proved 
in a practical sense. The hardware to accomplish these tasks 
exists. 1t remains for realistic trials to be made and it is 
hoped that a subsequent paper will report on the findings of 
these trials.