Pariset and Mazet distinguished themselves combating an outbreak of yellow fever in Spain. Pariset's colleague was apparently not involved with publication of the book, and died in a yellow fever outbreak in Barcelona in 1821, very soon after the book's publication, as Pariset's dedication is dated December, 1820. Some copies have an inserted plate honoring his memory. This is probably the most elaborately produced, and strangely beautiful book on yellow fever published during the 19th century with 5 full-page hand-colored lithographs by le Comte de Lasteyrie, pioneer lithographer in France. Digital facsimile from Google Books at this link.