THE DARK ADAPTATION OF THE EYE OF LIMULUS,AS MANIFESTED BY ITS ELECTRIC RESPONSE TO ILLUMINATION

On page 387, Vol. 13, No. 3, January 20, 1930, the numbers in the last column of Table 1 should be divided by 10 to give the true values of k''. In the next to the last line, under Table 1, for value of C = 0.337 read value of C = –0.337.