Complex sentence: On 14 November 1768 John Wilkes presented a petition through Mawbey, and speeches by him on the proceedings against Wilkes were published, in the "Debates" by Sir Henry Cavendish, 2nd Baronet.
Split into simpler sentences: On 14 November 1768 John Wilkes presented a petition through Mawbey. Speeches by Mawbey on the proceedings against Wilkes were published, in the "Debates" by Sir Henry Cavendish, 2nd Baronet.