Formats of index and Notes have been regularised.
Index, full stop inserted after ‘ib.,’ “plants for fresh-water aquarium, ib.;”
Index, ‘3’ changed to ‘320,’ “Cross puzzle, the, [320]”
Index, ‘miscroscope’ changed to ‘microscope,’ “Objects, some, for solar microscope, 225”
Page 266, full stop inserted after ‘book,’ “in this book.) Balance”