"NicolÒ" and "Nicolo" were both used in the text. Many other variant and alternative spellings have been preserved, except where obviously misspelled in the original. Obvious punctuation errors have also been corrected.

The illustrations have been moved so that they do not break up paragraphs and so that they are next the text they illustrate. Thus the location of an illustration may not match the references to it in the text.

The printed text was followed by two series of advertisements. The first series was reproduced in the second, except with American rather than British pricing. The first series bore a header "Advertisements." on each page; this has been replaced by a heading preceding the advertisements. Only the second series had page numbers.