Verzeichnungen auf Luft- 
n into the resolving limit 
grated photogrammetric 
hotography. 
gement (B. Dubuisson), 
tant. d'assurer l'indépen- 
l'un stéréorestituteur. 
eotop. 
gement (B. Dubuisson), 
loitation d'un dispositif 
1 orthogonale. 
and tracing table for use 
tphotogrammetrie. 
ammetric operations. 
cy of terrestrial stereo- 
he theory of errors for 
r vertical pictures. 
lialen Verzeichnung von 
sbeziehungen der Photo- 
die gegenseitige Orien- 
on and other systematic 
nately vertical pictures. 
a standardized test of 
instruments. 
s—a suggestion. 
Y 
Ye 
inclination and latitude 
IILD 4— 66 
II MC 1 — 219 
II N 1 — 126 
II O 1 — 215 
II O 2 — 222 
1103 — 214 
II R 2 — 216 
II S 1— 224 
II S 2 — 221 
I1 $3 — 181 
IIT 1— 220 
II T 2 — 225 
II Y 1 — 180 
IIIB1— 80 
III B2— 26 
III B 3 — 178 
III B 4 — 240 
III B 5 — 173 
III C 1 — 248 
III E1—171 
7 
G. P. Le Divelec, Italy: Correction automatique des deformations dues 
à la courbure de la terre et à la réfraction de l'air en utilisant le systéme 
mécanique de variation de la distance principale. 
A. Marazio—M .Cunietti, Italy: Experimental analysis of the intrinsic accu- 
racy of the Santoni stereocartograph mod. IV. 
U. Nistri, Italy: Practical and constructive criteria basic to my recent 
photogrammetric plotters. 
L. Ottoson, Sweden: Investigation of some systematic deformations of the 
pencils of rays in a stereoplanigraph. 
L. Ottoson, Sweden: Adjustment of the centering of images in projectors 
with the aid of fiducial marks. 
L. Ottoson, Sweden: Determination of the radial distortion of a Multiplex 
projector. 
E. Rehnlund, Sweden: Determination of some systematic deformations of 
the pencils of rays of photogrammetric plotting instruments. 
E. Sigmark, Sweden: Some examples of the application of the grid method 
for the determination of the inner orientation of terrestrial cameras. 
G. Simonsson, Sweden: Device for measurements of parallaxes. 
K. Schwidefsky, Germany: Ein neues Hilfsgerit fiir die photographische 
Umformung von Messbildern: der Reduktor. 
S. Thorén, Sweden: Practical application of the numerical adjustment of 
the relative orientation. 
C. Trombetti, Italy: Appareils et méthodes de restitution en Italie. 
H. Yzerman, Switzerland: 'The S. D. L, A new method for stereoscopic 
measurements and plotting. 
Commission III 
P.-L. Baetslé, Belgium: Compensation des blocs photogrammétriques en 
altimétrie par relaxation. 
A. Bjerhammar, Sweden: Further results with the parallax triangulation 
method. 
U. Bartorelli, Italy: Nadiral point gyroscopic aerial triangulation accord- 
ing to the Nistri method. 
U. Bartorelli, Italy: An analytical method of aerial triangulation. 
T. J. Blachut, Canada: Airborne control method of aerial triangulation. 
Z. Czerski, Poland: Über das Optimale Richtungszentrum bei der Radial- 
triangulation. 
L. Ekelund, Sweden: Photogrammetric triangulation with the aid of geodi- 
metermeasured bases or polygons.