On page 227, Vol. XXV, No. 2, February 1, 1917, line 20, for 2 or 3 minutes read 20 to 30 minutes.

On page 228, lines 28, 29, and 30 should read: It should also be mentioned, as has been shown by the experiments of Bordet and Zunz with guinea pigs, that it is better to employ homologous serum; that is, rabbit serum.

This content is only available as a PDF.