London: Probsthain, 1914.
http://purl.library.uoregon.edu/e-asia/ebooks/read/histphil.pdf
New York: Fleming H. Revell, 1901.
http://purl.library.uoregon.edu/e-asia/ebooks/read/logic_method.pdf
Russian Journal, 2002.
http://purl.library.uoregon.edu/e-asia/ebooks/read/ruschin.lit
http://purl.library.uoregon.edu/e-asia/ebooks/read/histphil.lit
Eugene: e-Asia, 2006.
http://purl.library.uoregon.edu/e-asia/ebooks/read/legit-intro.pdf
http://purl.library.uoregon.edu/e-asia/ebooks/read/legit-conclu.pdf
Chicago: Open Court Pub. Co., 1898
A Google book
http://purl.library.uoregon.edu/e-asia/ebooks/read/chinesephilosophy.pdf
A Google book