I believe the answer is: Pertained to the internal conditions of trade to England
Hakluyt at that time was an organizaiton which held the control over the records that the British explorers have regarding their voyages. This records usually filled with various information regarding trade routes, supplies, and kingdoms that held territories on the water path. Because of this, the information is closely related to England's internal needs.
The Black Death arrived in Messina, Sicily by sea in October 1347.
1. Charge motion.
“Magnetic fields are associated with two magnetic poles, north and south, although they are produced by charges. (moving charges).”