To the Editor:
—I have discovered an important omission in my article on this subject (The Journal, March 25, 1916, p. 931), an omission which may have practical consequences. On page 934, second column, the first paragraph of the summary reads: "In each and every case of tetanus, 1.2 c.c. of a 25 per cent, solution of magnesium sulphate should be given by subcutaneous injection," etc. It should read: "1.2 c.c. of a 25 per cent. solution of magnesium sulphate perkilogram body weight."