Complex sentence: Another magnificent country estate developed by Dr. Webb was a game preserve in the Adirondacks that he formed from a tract of 200,000 acres later donated tto the Adirondack State Park.
Split into simpler sentences: Another magnificent country estate developed by Dr. Webb was a game preserve in the Adirondacks that he formed from a tract of 200,000 acres. This was later donated tto the Adirondack State Park.