http://books.google.com/books%3Fid%3DtyASAAAAYAAJ%26pg%3DPA70%26dq%3DBroughton%2Babraham%2Blincoln%2B%22when%2Bi%2Bpredicted%22%2Bmonthly%2Bplanet%26ei%3DGfAqSbz-BYq6kwSMi5DPCw