Complex sentence: These lands were conveyed to Pheps and Gorham subject to them securing the Indian title to such lands and they were to pay Massachusetts $1,000,000, or 16 and 2/3 cents an acre.
Split into simpler sentences: These lands were conveyed to Phelps and Gorham subject to them securing the Indian title to such lands. They were to pay Massachusetts $1,000,000, or 16 and 2/3 cents an acre.