He also distributed lists of days when atmospheric disturbances would occur that were given to sailors of that era so they could anticipate approaching storms.
[1] Saxby was an instructor of steam engineers and inventor the "spherograph" for correcting the compass,[1] which he offered to ships.
Saxby published his weather predictions in the Nautical Magazine, a journal for the merchant marine.
If the phase, position and hemispheric location aligned then a large storm might occur somewhere in the world.
In the second edition of the book Saxby provided arguments against Robert FitzRoy's debunking of lunar weather forecasting.