July 24 
21 
1 
2 
3 
4 
5 
6 
7 
8 
9 
(Tuesday July 2k, contcl) 
263 
10.35 
A 
Commission I Session e 10.35—12.00 
264 
10 35 
The ct-functions for description of imaging pro 
perties and the relationship to practical ques 
tions -f- disc. 
Ingelstam, Sweden 
1 
265 
10.50 
Discussion on serial number 2'64 
266 
10.55 
Film- and filter-questions in aerial photogr. 
Backstrom, Sweden 
2 
267 
11.04 
Preliminary invest, of resolving power of aerial 
photographs 
Welander, Sweden 
E 
F 
2 
268 
11.13 
Discussion on serial numbers 266—267 
269 
11.18 
Statoskop mit elektrischer Registrierung 
Meier, Germany 
G 
F 
1 
IM 1 
270 
11.27 
L’enregistrement du point nadiral gyroscopique 
selon la méthode Nistri. 
Parenti, Italy 
F 
E 
1 
271 
11.36 
Discussion on serial numbers 269—270 
272 
11.42 
L’exagération du relief dans stéréogrammes 
Baetsle, Belgium 
F 
E 
1 
IB1 
273 
11.50 
Stereovision capacity of 900 tested persons 
Fagerholm, Sweden 
E 
F 
2 
274 
11.55 
Discussion on serial numbers 272—273 
12.00 
End. Lunch. 
275 
13.30 
B 
Commission I Session f 13.30—14.30 
277 
13.39 
Aerial photogr. with small aircraft in the Tro 
pics. 
Ahstrand, Sweden 
E 
F 
2 
IA 1 
278 
13 44 
Some aspects of Hiran-photogrammetry 
Laurila, USA 
1 
279 
13.53 
A radio aid to air survey 
Powell, England 
E 
F 
1 
IPI 
280 
14.02 
Discussion on serial numbers 276—279 
281 
14.20 
General discussion 
14.30 
End. 
282 
14.00 
A 
Movie Program 14.00—17.00 
283 
14 30 
C 
Delegate Meeting III 14.30—17.30 
17.30 
End 
284 
14.30 
— 
Expo Demonstration 14.30—17.30 
20 
July 24, 25 
1 
2 
3 
4 
5 
6 
7 
8 
9 
(Tuesday July 2k, contd) 
285 
19.00 
C 
Council Meeting 
286 
19.00 
— 
Expo Demonstration 19.00—21.00 
Wednesday, July 25 
287 
9.00 
A 
Commission IV Session e 9.00—10.30 
288 
9.00 
Instr. and methods for small-scale cartogr. + 
dise. 
Kasper, Switzerland 
G 
E 
1 
289 
9.15 
Mapping the Island of New Foundland -j- disc. 
Gamble, Canada 
E 
F 
2 
IV G 1 
290 
9.30 
Aerial survey in the Antarctic + disc. 
Mott, England 
E 
F 
4 
291 
9.45 
Les contrôles des cartes topographiques exécutées 
par les moyens photogrammetriques + dise. 
Le Divelec, Italy 
F 
E 
2 
292 
10.00 
Economie factors in the integrated photogram- 
metric system of the US Geological Survey + 
disc. 
Whitmore, USA 
E 
F 
1 
IV W 1 
293 
10.15 
Statistics in the study of errors in survey work 
+ disc. 
Wassef, Egypt 
E 
F 
2 
10.30 
End. 
294 
10.35 
A 
Commission VII Session d 10.35—12.00 
295 
10.35 
Introduction. 
■ 
296 
10.40 
Quantitative eval. of photo-interpr. mapping 
Young, USA 
E 
F 
1 
297 
10 52 
Forest information from a combination of aerial 
photographs and low flying aircraft 
Hagberg, Sweden 
E 
F 
1 
298 
11.04 
Discussion on serial numbers 296—297 
299 
11.16 
Effect of photo scale on use of aerial photography 
r.b.t. 
Axelson, Sweden 
.— 
1 
VII Al 
300 
11.16 
Photogrammetry for forestry purposes in Sweden 
Tham, Sweden 
E 
F 
2 
301 
11.24 
Luftphotogram. Ermittlung von Korrelationen 
zwischen den Elementen der Holzmassenbestim- 
mung. r.b.t. 
Ackerl, Austria 
— 
2 
3 02 
11.24 
Investigation of ground visibility in aerial pho 
tography over forest areas, r.b.t. 
Thunberg, Sweden 
— . 
3 
VII T 1