"The Flea and the Professor" is number 200 in the Hans Christian Andersen Center's register of Andersen's literary works, i.e. no. 200 in the category fairy tale (the range 1 - 300). BFN 1031.
"The Flea and the Professor" was first published December 1872, cf. the bibliographic description (in Danish) in : Digterens danske Værker 1822-1875, number in bibliography: 1031:
Loppen og Professoren, et Æventyr af H. C. Andersen.
Trykt i Folkekalender for Danmark. 1873, 22. Aargang, 41-46. Med Illustration af Lorenz Frølich. (Udkom December 1872). (Saml. Skr. XV, 244).
(Bibliografisk kilde: HCAH A-189a)
Show this work in its context: all new Andersen publications from 1872.
The work was published later (20 December 1874) as a part of Eventyr og Historier. Femte Bind. 1874 [Danish title]. (Number 337. BFN 1039. Category/genre: Fairy tale collection).
The Hans Christian Andersen library (bibliographies):