Page 92: 'firstfruits' corrected to 'first-fruits'. (OED, and matches 2 other occurrences.)
"The actual proof of the existence of these phases was one of the first-fruits which Galileo gathered by means of his newly invented telescope."
Page 109: 'eyeryone' corrected to 'everyone'.
"... —'the man in the moon'—with which everyone is familiar."
Page 118: 'of' added - missing at page-turn.
"They embrace some of the loftiest lunar peaks reaching...."
Page 128: 'lnnar' corrected to 'lunar'.
"The lunar night would be lit by our own earth,..."
Page 157: 'imch' corrected to 'inch'.
Jupiter, October 9, 1891, 9.30 p.m.; 3⅞-inch, power 120."