The English historians of ancient philosophy are not so numerous as the Germans. The work of Enfield is based on Bruckner, or is rather an abridgment. Archer Butler's Lectures are suggestive and able, but discursive and vague, as is the History of Ancient Philosophy by Maurice. Grote has written learnedly on Socrates and the other great lights. Lewes' Biographical History of Philosophy has the merit of clearness, and is very interesting, but rather superficial. Henry has written a good epitome. See also Stanley's History of Philosophy, and the articles in Smith's Dictionary, on the leading ancient philosophers. Donaldson's continuation of Muller's History of the Lit. of Greece, is learned, and should be consulted with Thompson's Notes on Archer Butler. There are also fine articles in the Encyclopedias Britannica and Metropolitana. Schleirmacher, on Socrates, translated by Bishop Thirlwall.