“In this territory, some operations necessary to the preparation of the 1:25.000
scale map were carried out, and thus a thick network of triangulated points, all already
identified on photographs, are available.
“The French I.G.N. declared, besides, to be ready to carry out flights on this
polygon with the equipments wanted by and in accordance to the manners demanded
by the different participants.
“The group of potential participants to these researches immediately apparent,
both through the Commission III Presidency and direct contact got into touch with
the I.G.N. to fix up precise agreements for flights.
“Besides the French I.G.N. Centre, two other Centres asked for particular flights
characteristics, namely: the Swiss Centres directed by prof. Zeller, wanting to effect
flights with a Wild RC7 camera, overlap of 65% and the Centre of Western Germany
asking to use a RMK 15-23 Zeiss camera”.
The topographic characteristics peculiar of “Massif Central” polygon and the
operations executed over it by the I.G.N. of Paris, to make it suitable to the aim,
will be described in chapter II, drawn up by the I.G.N. itself.
In chapter III, also drawn up by the I.G.N. the preparatory and flight operations
and the characteristics of the photographical material obtained in this way will be
described.
3 - AIMS AND PURPOSES OF THE GENERAL REPORT
On the grounds of what enumerated in the introductory paragraph and of the
purposes declared in the rules issued and approved in the Summer of 1958, the General
Report on the work of the Group assumes a particular importance, we are all aware of.
In fact, only through this conclusive General Report the users of the method of
the blocks for small scales will be able to know in detail the different proceedings.
Therefore, the Report must contain all the scientific, technical and economic
news that will direct the readers’ judgement and future users’ choice.
Without a detailed and complete report, the powerful effort made by all the parti
cipant Centres, would be wasted and useless. The effort made in these years by the
Presidency always had the aim to obtain from the Centres the greatest lot of informat
ion and coordinate this information to make it useful in practice.
On the other hand, one more engagement inspired our work in this sense: we
wanted to be sure that in the final Report nothing should appear that might let
somebody suppose a character of competition in the execution of the work of the
Centres. In fact, we are convinced that the more complete, wide, objective and uni
formly presented the documentation contained in the Report is, the more it will be
possible to avoid this dangerous and wrong interpretation of the work we executed.
Furthermore, always in view of correctly understand the completed work, it is impor
tant to make clear also the position and the responsibility of the Group Presidency,
concerning the guaranties on the reliability of the results obtained by the different
centres.
As it clearly appeared from all the contacts occurred with the different centres,
the Presidency of the Working Group has always had a full and absolute confidence
in the honest, objective and scientific collaboration of the Centres and has always
felt sure that no mean party interest or chauvinistic spirit has ever made the particip-
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