(217) 
our thanks 
the specifi- 
; should be 
further dis- 
:h delegate, 
the future, 
a from the 
r new prin- 
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s achieved, 
The various 
11 the more 
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r discussion 
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ents. There 
imission II. 
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1 resolution 
. Cruset? 
ill consider 
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eived. 
Trotwood, 
during the 
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I have not 
m. This list 
2ment with 
iphy. I will 
n. The aim 
that atten- 
lave always 
y and that 
s researches 
in that field. I am in complete agreement with Dr. Nagle on the fact that these 
phenomena have many possible consequences and that they have not thus far 
been given all the attention they deserve. 
Dr. Howlett: There is an opportunity now for the presentation of any 
resolutions from the floor of the Commission. 
Mr. Corten: There are several matters of navigation for aerial survey, 
electronic navigation, visual or contact navigation, instrument navigation, and 
only a few of these have been treated very briefly during this Congress. I pro 
pose a motion that one of the future activities of Commission I should be 
stimulating a mutual comparison of navigation methods, in a non-military 
field of course, with special regard to the efficiency of these methods in flying 
for aerial surveying. 
Dr. Howlett: The general gist of this resolution would recommend that 
Commission I in future pay more attention to navigational methods than it has 
in the past. It seems to be a very wise resolution. Are there any further com 
ments? If not, I will ask you to vote on the resolution. 
The resolution was carried unanimously. 
Dr. Howlett: We have prepared a draft of the report which will be 
presented by Commission I to the Plenary Session this afternoon. I will ask the 
Secretary to read this draft in order that the Commission may hear it and alter 
it in any manner they see fit. 
Mr. Carman: “The principal work of Commission I since the last Con 
gress has been the preparation of an international specification which provides 
a test procedure to permit the results of camera tests in different countries to 
be compared. The preparation of this specification has been greatly assisted and 
indeed made possible by much discussion with interested persons throughout 
the world. 
“Although an ideal solution to the requirement for a specification has by 
no means been reached the Commission can report some measure of success by 
the adoption of the present specification for trial, study, and discussion. The 
Commission regrads this as a useful pragmatic solution for the difficult situa 
tion but at the same time wishes to encourage research in this field so that the 
specification may ultimately be developed to a thoroughly satisfactory level. 
“In the interest of securing wide agreement, and completing a specification 
in the time available, it was necessary to leave out of the specification certain 
matters of interest. It is suggested that Commission I give attention to the 
possibility of expanding the scope of the specification. Items suggested for 
attention are definitions and translation of technical terms, a complete agree 
ment on T-stops, a shutter test method, and a method of testing camera 
mountings. In the course of discussing definitions it has appeared to be desir 
able that the International Society of Photogrammetry should not independ 
ently define terms which may be the responsibility of one of the International 
Scientific Unions. For example, many terms should obviously be in agreement 
with those which are or may be defined by the International Commission on