From William Clowes & Sons   19 July 1875

1^st Proof

ERRATA.¹

Page 173, line 2 of second column of note, for “Therefore, an object from thirty-one to seventy-seven times as small as a sphere.” read “Therefore, an object between 1/31 and 1/77 of the size of a sphere.”

" 271, line 8 from bottom, for “a little less than the one,” read “a little more than the one.”

" 301, 1st line of small type, for 2^.544, read 2^.540.

" 372, line 14, for 2^.794 read 2^.795.

" 373, line 16, for 1^.69, read 1^.70; and line 22, for 2^.794, read 2^.795.

" 375, line 22, for 5^.588, read 5^.590.