This lady’s letters exhibit a vein of intelligence and interesting reading in pleasant contrast to the frivolity of most of the courtly ladies of that age. “I have just had the oddest pamphlet sent me I ever saw in my life, called ‘Amusemens Philosophiques sur le Language des Bêtes.’ It was burnt by the hands of the common executioner at Paris, and the priest who wrote it banished till he made a formal retraction of it, and yet I think it very plain by the style that the man was either in jest or crazed. It is by no means wanting of wit, but extremely far from a system of probability.” Again, in another letter: “I have forgotten whether in any of my later letters I ever named to you a little book newly translated from the Italian, by the same Mrs. Carter who has a copy of verses printed in the beginning of Mrs. Rowe’s works, occasioned by her death. The book she has now translated is Sir Isaac Newton’s ‘Doctrine of Light and Colours made easy for the Ladies.’ My daughter and I have both read it with great pleasure, and flatter ourselves that we at least understand some parts of it.” It would be interesting to know who was the lady referred to in the following letter—it was probably Mrs. Elizabeth Carter; the work of the Doctor’s to which so marked a reference is made was undoubtedly his discourses “On the World to Come,” which had only just been published, a copy of which he had forwarded to her, and which had been acknowledged two or three weeks before in a letter from his “faithfully affectionate servant, F. Hertford.” “MARLBOROUGH, _July 30, 1739_. “SIR,