 David Goodstein argues that Millikan's statement, that all drops observed over a sixty-day period were used in the paper, was clarified in a subsequent sentence which specified all "drops upon which complete series of observations were made".Goodstein attests that this is indeed the case and notes that five pages of tables separate the two sentences.When Einstein published his seminal 1905 paper on the particle theory of light, Millikan was convinced that it had to be wrong, because of the vast body of evidence that had already shown that light was a wave.