84 DISCUSSION ON THE BIBLIOGRAPHY 
practically no justification for keeping this 
system anymore. My third reason is perhaps 
more imperative: when the whole organisation 
is ready, and after the cards have been printed 
at Delft, just one author set is made and one 
subject set is made. One set is arranged in 
chronological order, one set according to 
country and journal. Once you have these 
presortings you strike your head against the 
errors which are made. Then you see where the 
errors are, and you wonder how many possibili- 
ties of error there are when making such a 
bibliography. You must check the classification. 
You must check for typing errors, for printing 
errors, for concordance of classification with 
publications of the same kind which have been 
published earlier, for the bibliographic indica- 
tions, for the number of card copies, for the 
proper underlining, and so on. After that is 
done, those cards which are in error are taken 
out of the system, are taken out of the batches, 
and only then are the cards sorted and distribut- 
ed to the subscribers. Those cards which have 
errors are then corrected and added in a later 
shipment, of course. 
This means that the airmail sheets which 
should have already been sent, are not because 
there may be some error. That is basically 
wrong. For this reason, I think that the airmail 
sheets will have to be discontinued. 
I should like to make a few more personal 
comments based on the experience we have had 
this year. The classification was expected to be 
final by 1959. We waited for the edition of 500 
abstracts for this classification to be definite. But 
as it is now, the FID will probably make this 
classification international but not before 1961. 
Consequently, we do not want to wait any longer 
with the publication of these abstracts which we 
now have, so we shall therefore publish them 
immediately in the preliminary edition; the final 
edition will appear later. 
I should like to make another remark. This 
bibliography is standing on two feet: one foot is 
the abstracting co-operators who make the ab- 
stracts; the other foot is the ITC at Delft which 
is editing and publishing them. I should like to 
say two things in respect of that. First, I want 
to pay tribute to those co-operators who are 
regularly supplying the bibliography with ab- 
stracts from their own countries. I know how 
much work is involved, and I feel we should 
express our appreciation to these co-operators 
who do all this work. A second remark is that 
some co-operators in some countries are not yet 
active or very active. In 1957, Dr Schermerhorn 
requested all national societies to co-operate. 
They all consented, and after their consent we 
accepted the other half of the responsibility. | 
explicitly say that in those words: we accepted 
the other half of the responsibility for the biblio. 
graphy and for the edition. I think it would be 
a good thing if the International Society would 
remind some of the national societies of their 
part in the responsibility for making this biblio. 
graphy as universal as it should be. 
It may interest you to know that at Delft we 
have at the disposal of the bibliography in! 
particular — of course, apart from office facili. | 
ties — a full-time assistant librarian, a full-time 
qualified linguist who is graduated in Slavic 
languages. | 
I have a last remark about the need for the 
bibliography and the number of subscribers. 
The number of subscribers is about 100 now, 
apart from the co-operators. Even now, the 
cost of printing and mailing is not completely 
covered. It would be so if the number of sub. | 
scribers was 120; then it just balances the cost of 
printing and mailing. The need for the biblio. | 
graphy is clear; it is not necessary to spend many | 
words on that. | 
I noticed some time ago that probably the! 
first bibliography was started in 1913 by a 
German captain whose name I have now for- 
gotten. He made a first set of references and 
wrote in this publication, “I will continue this | 
every year in order to compile a bibliography.” | 
This was the first, and it was also the last, time | 
he did it. | 
In our country, the patent office has to reject | 
about 8076 of the patents applied for. You will 
know the reason for that because the subject 
has been discussed in a publication before in 
some other country a long time ago, and in some 
other language. I think this fact is significant for | 
the situation, not only for photogrammetry but | 
for practically all techniques. This situation is, 
in fact, impossible. 
The need for a bibliography is also clear 
from the fact that many of us tried to make some 
simple reference system of our own, but nearly 
all these trials have failed. In addition, the 
horizon of most of us is limited to those journals 
which are read periodically by each of us, due 
to time limitations and to language limitations. 
Every photogrammetrist realises the fact that he 
must become informed and remain informed 
about what happens in his own field, and when 
every one of us realises that the screening and 
abstracting are done by colleagues and art 
available practically free of charge then the 
number of subscribers will certainly become 
much larger. Then this bibliography will fulfil 
  
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