Charles Sanders Peirce,
Peirce, C(harles) S
“ Logic, especially logic of relations, probabilities, theory of inductive and retroductive validity and of definition; epistemology; metrology; history of science; multiple algebra; doctrine of the nature and constitution of numbers; gravity; wave-lengths; phonetics of Elizabethan English; great men; ethics; phaneroscopy; speculative cosmology; experimental psychology; physical geometry.—Foundations of mathematics; classification of science ”
