FOURTH EDITION, REVISED
PHILADELPHIA AND LONDON
W. B. SAUNDERS COMPANY
1919
Copyright, 1905, by W. B. Saunders and Company. Reprinted
August, 1905, July, 1906, June, 1907, and January, 1908.
Revised, reprinted, and recopyrighted August, 1908. Reprinted
March, 1909, February, 1910, July, 1910, March, 1911, February,
1912, and August, 1912. Revised, reprinted, and recopyrighted
February, 1913. Reprinted October, 1913, May, 1914, November,
1914, January, 1915, May, 1915, September, 1915, June, 1916,
January, 1917, July, 1917, November, 1917, April, 1918, and
August, 1918. Revised, reprinted, and recopyrighted March, 1919