you a copy of a minute, dated
the 21^st instant, from Captain
Hurd, the Hydrographer for
this department, wherein he
has quoted certain parts of
your general statement from
which he conceives that an
abstract might, with advan-
-tage, be made for the infor-
-mation of those Officers who,
like Captain Hayes, shall be
desirous to regulate the
experiments and remarks
which they are instructed to
make, by a further knowledge
of the subject than is at
present brought under
their views; and I have to
signify their Lordships'
direction to you to report
to me what additional particulars,
of the deductions already obtained,
you would propose to be circula-