PREFACE. A SIT IS of more Importance that a Book be worth reading, than to know by whom it is writ, there would have been no Neceffity of acquainting the Public, that fome of the first of the following LETTERS paffed in Correfpondence, if the lamented Death of the worthy Man who wrote them, had not prevented his profecuting a Plan, which the Reader without fuch Notice might be justly furpriz'd to find abruptly relinquished. |