Complex sentence: Davies Giddy met Davy in Penzance at the gate of Dr Borlase's house and invited him to his house at Tredrea and offered him the use of his library which led to an introduction to Dr Edwards, who lived at Hayle Copper House.
Split into simpler sentences: Davies Giddy met Davy in Penzance at the gate of Dr Borlase's house, invited him to his house at Tredrea and offered him the use of his library. This led to an introduction to Dr Edwards, who lived at Hayle Copper House.