Complex sentence: He was in Basle during the 1570's and Frankfurt in early 1580's and used John Dee's Monas Hieroglyphica on the title-page of his "Chymisticum artificium".
Split into simpler sentences: He was in Basle during the 1570's and Frankfurt in early 1580's. He used John Dee's Monas Hieroglyphica on the title-page of "Chymisticum artificium".