Title: A calm and sober inquiry concerning the possibility of a trinity in the godhead, in a letter to a person of worth; occasioned by the lately published considerations on the explications of the doctrine of the trinity, by Dr. Wallis, Dr. Sherlock, Dr. Sth, Dr. Cudworth, etc. Together with certain letters, (hitherto unpublished) formerly written to the Rev. Dr. Wallis on the same subject