That in reference to the remarks of the distinguished Delegate of
France, Professor JANSSEN, he would prefer, if the Conference would
consent, to study his arguments more carefully when they should be in
print.

He remarked that some points raised by that argument have been already
replied to, and he wished now more particularly to request that
Professor JANSSEN would define precisely what he meant by "a neutral
meridian;" that he had partially answered this question in reply to
Professor ABEÉ; but that there was a more fundamental point, one of
practice, which must be brought in and kept in mind at every step, and
which was raised by Commander SAMPSON'S paper, to which he had
listened with great interest. Commander SAMPSON held that it would be
necessary to have a fixed observatory on the chosen prime meridian,
but he (Professor NEWCOMB) did not concur in that view, but rather
agreed to a limited extent with what Professor JANSSEN had said on
that question.

In choosing a meridian from which to count longitude, you meet a
difficult problem. You have a point on the globe defined as the first
meridian. This would be taken as the initial point of departure, and
you are to determine the longitude of a certain place from that point.
Now, doubtless, there is no other way to do this than to have an
astronomical instrument and telegraphic communication. And if they
chose the Azores or Behring's Strait, in neither case could they mount
a transit instrument or have a system of telegraphic communication.
Nor could we make a determination of longitude from a single fixed
observatory in any case.

He then stated that it was impracticable under any circumstances to