An answer to the first and second part of an anonymous pamphlet, entitled, Observations upon the conduct and behaviour of a certain sect usually distinguished by the name of Methodists [electronic resource] : In two letters to the Right Reverend the Bishop of London, and the other the Right Reverend the bishops concern'd in the publication thereof. : The two parts of the Observations herein answered, are prefix'd. / By George Whitefield, A.B. Late of Pembroke-College, Oxford