-21-
TOTAL
COST
Aerial Photography
including 2 collections
of contact prints
Materials and
use of instruments
PERSONNEL
100$
33$
30$
37 $
Since this job was undertaken by a Government Depart
ment to another, no profits were accounted for in the above table.
Also the majority of the materials were tax-free.
IV
CONCLUSIONS
1. - In this job eleven men have been periodically employed. Two of-them.
had little experience and three were completely unacquainted with the
type of work. Only the grid construction, rectification and mosaic
mounting were exclusively carried out by trained men. This can
explain the somewhat excessive time'spent on some phases. On the
other hand we can draw the conclusion that it is possible to entrust
some of the tedious stages of the work to untrained personnel.
2. -- The present work could not have been executed, with the old Wild
E-2 in the way it was. The acquisition of the new model E-3, that
at first sight appeared to be an unnecessary duplication has enabled,
•owing to its good optics and illumination, the enlargement of the
slotted templet control and later of the rectified prints without
loosing any appreciable accuracy or raising serious problems of
tone matching. Thus it has been possible to overcome the diffi
culties brought about by the features of the terrain.
It may be suggested that in areas with few annual days
suitable for aerial photography, the techniques described herein
may be advantageously followed in its general implications. Photo
graphy has to- be of the highest quality. In this respect it. is well
to say that the Aviogon Photography was good.
The photogrammetrie methods depend to a great^pxtent
on the quality of the available equipment. It is the author's be
lief that rational modernization of instruments, should Ae under
taken whenever possible.
The multitude and urgency of the problems faced in the field of ae
rial survey, especially in large countries in an early stage of de
velopment, often call for the intensive use of equipment and person-
