

[From the Proceedings of the Malacological Society, 

 Vol. XVI, Pt. I, p. 23, April, 1924.] 



ON THE TRUE DATE OF PUBLICATION OF S. NILSSON'S 

 HISTORIA MOLLUSCORUM SVECIM. 8vo. LUND^E, 1822. 



By B. B. Woodward, F.L.S. . 



Read 9th November, 1923. 



Question having arisen as to the exact clate of publication of this 

 work, I wrote to Dr. N. Hj. Odhner, of the Riksmuseum, Stockholm, 

 who most kindly made inquiries and replied under date 17th June, 

 1923, as follows :— 



" In order to assist you with the requested date of issue of Nilsson's 

 Hist. Moll. Suecice, I wrote to the old printing office which has 

 survived the tempests of the time till present days. From this office 

 I received to-day the following answer : ' Historia Molluscorum 

 Suecice was printed during the time lst July-31st December, 1822, 

 and contained 9^ sheets. We are not able to be at your service 

 with any more exact statement.' " 



It is obvious, therefore, that the work could not have appeared 

 until early in 1823, and that the title-page consequently is pre- 

 dated. This rectification of date affects the following names : — • 



In the matter of the last named, Nilsson was misled by the 

 explanation attached to Draparnaud's figure, which, as pointed out 

 by Brard {Hist. Coq. Paris, p. 46), depicted H. neglecta and not 

 ericetorum ; neglecta, however, is not a Swedish species, so that the 

 identity of Nilsson's ericetorum remains in doubt. 



