120 Nouv. Mem. de la Soc. Imp. de Nat. de Moscou. 



A considerable number of duplicates of these, and of other 

 mountain limestone fossils, including several species of cri- 

 noidal bodies [VI. 281. 560., VII. 179.], remain in my hands, 

 after making a selection for my own cabinet, which I should 

 be glad to exchange with any person who can offer me good 

 specimens, either of fossils or of recent shells, in return. — 

 Wm. Gilbertson. Preston, Lancashire, Nov. 28. 1834. 



[The Engravings in the Transactions of the Entomological 

 Society were not executed by Mr. Swainson, but by Mr. Swaine.'] 

 — Sir, I beg you will contradict a strange error in your last 

 Number [p. 63J], where I am stated to be the engraver of the 

 plates to the Transactions of the Entomological Society. So 

 far from engraving other people's drawings, however accurate 

 they may be, I would willingly get rid of the trouble of en- 

 graving my own, could I find a competent hand. — Yours, &c. 

 W. Swainson. Jan. 3. 1835. 



We beg to present our best apology for the misstatement, 

 which arose from our mistaking the " J. Swaine sc." en- 

 graved on each of the plates, for " Swainson sc." We did 

 not look at this matter so closely as we should have done ; and, 

 somehow, the notion became spontaneous to us, that Mr. 

 Swainson had done the Entomological Society the benefit of 

 the application of his talent. We hope to be more cautious 

 in future. — J. D. 



REVIEWS. 



Art, I. Titles of Works on Subjects of Natural History) published 



recently. 



Various Authors: Nouveaux Memoires de la Societe Im- 

 periale des Naturalistes de Moscou. Dedies a S. M. FEm- 

 pereur Nicolas I. Tome III., avec 32 planches. 4to, 

 369 pages. Moscow, 1834. 



The titles of the treatises contained in the volume may 

 prove useful clews to those pursuing kindred subjects. We 

 give the tides of most of them : — 



" Tentamen de Abrotanis, seu de sectione secunda Artemi- 

 siarum Linnaei, auctore W. G. Besser, M.D., &c." This is 

 an elaborate synopsis of a monograph prepared by the author. 

 The synopsis supplies distinctive and, in some cases, detailed 

 descriptions of seventy-four species, and of many varieties ; 

 and figures of six species, and three varieties. The author 

 views the genus Artemisia as composed of four sections. He 

 is next engaged in investigating the species of the section Ab- 

 sinthium. 



