The exact date of publication has been established via the known date of its sending by Berendt from Danzig (dated) to the Prussian Academy of Sciences in Berlin (vide Ber. Bekanntm. Verh. Königl. Preuss. Akad. Wiss. Berlin 1845: 190. 1845); Börsenblatt für den Deutschen Buchhandel, 1845: 17-19 Jul 1845 (lately received).