Some page numbers do not appear due to removed blank pages.
The list of [Contents] was added for reader’s convenience.
Punctuation errors were corrected.
Inconsistent hyphenation was retained.
“De la Lande” and “La Lande” both appear in text and were retained.
“Shenier”, editor’s spelling of “Scheiner”, was retained.
On [p. 37], a paragraph break was inserted before "There is a clear example ...".
On [p. 44], “the” was changed from “The” (the usual method).
On [p. 85], “that” was changed from “That” (that a species).
On [p. 86], “that” was changed from “That” (that an instrument).