Illustrations are moved from inside paragraphs to between paragraphs. The symbol "lgr", in a caption to an illustration, links to a larger image—these are available only in the html edition. The transcriber created the cover image by editing the title page image, and hereby assigns it to the public domain.
Pages [16]–[18]. Page 16 ended after "with another one, No. 31, also shown" (i.e. in the middle of a sentence). This was followed by Plates [1]–[4], & then by page 17, which contained two data tables, & then page 18, which continued the original paragraph. The transcriber has closed the paragraph, and moved the Plates and tables to follow it.
Pages [31]–[32]. The footnote on page 31 said only "See footnote on page 32." The footnote on page 32 had no anchor in the text. Therefore, to simplify, the page 31 footnote has been eliminated, and its anchor is linked directly to the page 32 footnote. Pages [46]–[47]. The footnote on page 47 had no anchor in the text. However, the footnote on page 46 said only "See Footnote page 47". Therefore, the footnote anchor on page 46 has been linked directly to the footnote on page 47, eliminating the page 46 footnote.
Page [63]. The large table was split into two tables, repeating the first column in each part.
Page [140]. The paragraph for June 23 originally ended "dotted line in Plate". The transcriber has inserted " 34.", as a guess.
Pages [190]–[192]. The wide tables were split into two, repeating the first column in each part.
Page [193]. The wide tables were transposed, row for column.
Page [201]. The wide table was split into two.
Pages [297]–[308], Data Sheets. Remarks originally situated in the tables are appended below each Data Sheet. The units of measurement were originally spelled out—m. = Metres; ft. = Feet; gr. = Grammes; and lbs. = Pounds. In the footnotes to the Data Sheets, in the phrases "curved wings 2-5 the way", and "rear wings have 2-3 of the efficiency", the hyphen seems to mean division, like "/". This usage occurs also in the caption to Plate [85], in "SCALE 1 1-16 INCH TO STATUTE MILE".
Page [299]. Item 41, "7 75" changed to "7.75".