OUTLINES OF COSMIC PHILOSOPHY
Based on the Doctrine of Evolution, with Criticisms on the Positive Philosophy. In two volumes, 8vo, $6.00.
You must allow me to thank you for the very great interest with which I have at last slowly read the whole of your work.... I never in my life read so lucid an expositor (and therefore thinker) as you are; and I think that I understand nearly the whole, though perhaps less clearly about cosmic theism and causation than other parts.—Charles Darwin.
This work of Mr. Fiske's may be not unfairly designated the most important contribution yet made by America to philosophical literature.—The Academy (London).