Lorenz or Lorentz? [Addendum]

Summary form only given, as follows. This short (and modest) note has generated a number of reactions! The first one is the publication, in the present issue, of an interesting note by Dr. Sihvola. It concerns the paternity of another Lorenz-Lorentz common effort. The second reaction is a message by Professor J. Bach Andersen, Vice-President of URSI, who lets the author know that an interesting review of Ludwig Valentin Lorenz' career and scientific work, written by M. Pihl, can be found in Volume 1 of Electromagnetic Theory arul Antennas. This book, published by Pergamon Press in 1963, contains the proceedings of the 1962 Symposium on Electromagnetic Theory, the well-known series organized by URSI's Commission B. Pihl's article, some 10 pages long, mentions that Lorenz was, indeed, the first physicist to introduce retarded potentials ... the author would like to make use of the present addendum to mention that "Kirchhoff" was misprinted in my original note.