Page 413, “Easer” changed to “Easter” (1. Essay—Easter.)
Page 424, “make” changed to “made” (which has made Shaksperean skepticism almost respectable)
Page 429, “with” added (two atoms of nitrogen have united with two atoms of oxygen)
Page 429, “hydrogen” changed to “oxygen” (The formula Cu(NO₃)₂ … three atoms of oxygen)