Complex sentence: In addition to paying Burr for his assistance, White offered Burr a place on the title page, which Burr declined, although he subsequently worked extensively on a revision of the work which was never published.
Split into simpler sentences: In addition to paying Burr for his assistance, White offered Burr a place on the title page, which Burr declined. Burr subsequently worked extensively on a revision of the work, which was never published.