1071537r
But if half a poynt had been greater, then it had varied
the contrary way by the differences.
If the former rules be well understode there cannot happen
any case concerning this variation, but you may very well
know what to do adding or when to adde or subtracte
& what is don by them, if you will use that means. you
have your choyse; [???] so that
I need not be more
the contrary way by the differences.
If the former rules be well understode there cannot happen
any case concerning this variation, but you may very well
know what to do adding or when to adde or subtracte
& what is don by them, if you will use that means. you
have your choyse; [???] so that
I need not be more
This means of of observing the variation of all others generall most redy easy
& certayne; the way that they use by observing the north upon a northesat guard is not true but
only about the [???] in the latitude of 40 & 50 degrees because there only he is in the
meridian or [???], which to all seamen is a paradox. & to affirme the starre
by the compasse when he is hye is very uncertayne; but when he is
it is a goode meanes to attayne to the variation nere hand neither
do I wishe it to be refused, as being under the hygh of 20 degrees.
& at a NE & SW guard. So likewise is it to be preferred before any single
observation that is made [???] of the sonne or starre when they it are many degrees observa-
tion hye or any doble of the forenoone & afternoone; which are only goode
at land where the horizon can not be seene & the & when this way can
not be used of which way as others have written by the sonne specially Mr w: Borrowes in his
booke of the variation annexed to Normans new
& certayne; the way that they use by observing the north upon a northesat guard is not true but
only about the [???] in the latitude of 40 & 50 degrees because there only he is in the
meridian or [???], which to all seamen is a paradox. & to affirme the starre
by the compasse when he is hye is very uncertayne; but when he is
it is a goode meanes to attayne to the variation nere hand neither
do I wishe it to be refused, as being under the hygh of 20 degrees.
& at a NE & SW guard. So likewise is it to be preferred before any single
observation that is made [???] of the sonne or starre when they it are many degrees observa-
tion hye or any doble of the forenoone & afternoone; which are only goode
at land where the horizon can not be seene & the & when this way can
not be used of which way as others have written by the sonne specially Mr w: Borrowes in his
booke of the variation annexed to Normans new
Besides the benefit that it hath in shewing your true course, it
will hereafter be a meanes to observe the longitude to of sufficiently
exact, & therefore I wish it the more to be
will hereafter be a meanes to observe the longitude to of sufficiently
exact, & therefore I wish it the more to be
By the table also of the sonnes Amplitude with the rules before may be
found the variation of the compasse by the moone or any starre whose
inclination is not gi may be found in the
found the variation of the compasse by the moone or any starre whose
inclination is not gi may be found in the
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