to the Canadian Institute of Surveying rep- 
resentative. 
Council has met on four occassions apart from 
meetings held at the Ottawa Congress and this 
Congress. The first meeting was in 1973 at the 
I.T.C. in Enschede, the second in 1974 in Paris, 
. the same week of the Symposium of Commission 
IV. The third meeting was held in Helsinki in 
May 1975 and the fourth meeting in Enschede, 
the 1st and 2nd of June of this year. At the Paris 
meeting, sessions were also held with Commis- 
sion Presidents, a representative of the Finance 
Committee, a representative of instrument manu- 
facturers and exhibitors and a representative 
from UNESCO. On behalf of Council, | wish to 
thank our hosts for our meetings, for their hospi- 
tality and the fine arrangements made for our 
sessions. 
Symposia 
Of our seven Technical Commissions, six held 
their Symposia in 1974 and Commission VI held 
its session in May 1975. | shall mention them in 
order. 
Unfortunately, | was not able to attend the Sym- 
posia of Commissions | and Ill but other mem- 
bers of Council were in attendance as well as 
for the Symposia of the other Commissions. 
Commission | Primary Data Acquisition 
President, Dr. Erik Welander 
The major event was the Symposium held in 
Stockholm, Sweden, August 27 to 29, 1974 and 
entitled "Remote Sensing and Aerial Photogra- 
phy". A total of 102 photogrammetrists partici- 
pated from 20 Member Bodies. Thirty-eight tech- 
nical papers were presented. Chairman of the 
sessions was Dr. Carl Olaf Ternryd who is cur- 
rently President of F.I.G. The late Professor Halo- 
nen opened the sessions. Dr. Welander introduced 
the technical program for the three day session. 
This was organized under the following headings: 
Space Imagery 
Underwater Photography 
OTF/MTF, Working Group Report 
Lens Testing, Camera Calibration and System 
Evaluation 
Remote Sensing, Working Group Report 
Environmental Aspects of Remote Sensing 
The Geometry of Remote Sensing, Working 
Group Report 
Geometrical Properties of Data Acquisition, 
Working Group Report 
Colour and Multispectral Photography 
Holography 
Navigation and Flight Systems 
The Symposium concluded with determining the 
program for the Helsinki Congress. 
In addition, a Symposium on Image Geometry 
was held in Ottawa, October 22 to 24, 1975 at the 
National Research Council Laboratories under 
the Chairmanship of Dr. Hartmut Ziemann. Ap- 
proximately 40 were in attendance. 
Commission Il Instrumentation for Data Reduction 
President, Prof. Giuseppe Inghilleri 
A Symposium on the Role of Digital Components 
in Photogrammetric Instrumentation was held in 
Turin, Italy, October 2 to 4, 1974. The full report 
on the Symposium has been mailed to partici- 
pants and those interested who may not have 
received it, should enquire about it from Prof. 
Inghilleri. The Symposium was attended by 53 
delegates representing 12 Member Bodies and 
12 papers were discussed during the course of 
the three day session. The meetings were held 
in the Jiulio Cesare Hall in Turino Esposizioni 
and we are indebted to the Survey and Geodetic 
Institute of the Technical Institute of Turin for 
providing the organization and administrative 
support for the meetings. 
In addition to the foregoing, an International Sym- 
posium on Orthophotography was held at the 
University of Sao Paulo, Brazil, from the 27th to 
30 th of July, 1975. | understand that a report on 
this Symposium will be available during the ses- 
sions of Commission ll. 
Commission Ill Mathematical Analysis of Data 
President, Dr. Friedrich Ackermann 
Commission Ill Symposium was held September 
2 to 6, 1974 in Stuttgart, Germany. To date | have 
not received a copy of the proceedings which 
were planned for publication early this year. The 
Commission Board planned to send copies to all 
participants in the Symposium and additional 
copies are available upon request from the Com- 
mission Board. 
Commission IV Topographic and Cartographic Ap- 
plications 
President, Mr. Guy Ducher 
The principal activity of Commission IV was the 
Symposium held in Paris the 24th to 26th of Sep- 
tember, 1974, and the theme of the Symposium 
was "The Revision of Maps by Photogrammetric 
Methods". In addition to papers on the above 
subjects, reports of several Working Groups of 
the Commission were presented and discussed. 
Also, plans were made for the program for the 
Helsinki Congress. Approximately 140 attended . 
the Symposium with an average attendance of 
80 at the various sessions. Twenty-five Member 
Bodies were represented and 33 papers or reports 
presented. In addition, there was a display of 
technical equipment arranged for this Symposium. : 
The report of the Symposium has been published 
by the French Photogrammetrical Society and 
appears in three issues of its Journal. In addition 
to the Symposium in Paris, a meeting on Ortho- 
photo Techniques was held in Krakow, Poland in 
September, 1974, and the report of this meeting 
was distributed last year. 
Commission V Non-Topographic Photogrammetry 
President, Dr. H. M. Karara 
The major event was the International Symposium 
on Biostereometrics held in Washington, D.C., 
September 10 to 12, 1974, at the same time as 
the Congress of F.I.G. and the semi-annual meet- 
ings of the American Society of Photogrammetry 
and the American Congress on Surveying and 
Mapping. Papers of this meeting were published 
by the American Society of Photogrammetry. A 
total of 164 persons from 18 Member Bodies at- 
tended this Symposium. Pre-printed proceedings 
33