Royal Society. 277 31 — 33. S. rugosa est S. Smithiana, Koch. 34. S. rugosa ? var. stij)ularis = S. holosericea, Willd. Mihi gratis-sima est ; plantam foemineam antea nondum vidi. 35. S. ferruginea, And., folia — S. holosericea, Willd., valde similis, sed incompleta. 36. S. ferruginea var. = Quoad folia et amenta valde affinis S. Smithianae, Koch, sed tamen distincta videtur. Ab icone in Eng. Bot. Suppl. t. 2665, praeter squamas rotundatas non di-stinguenda. 37. S. acuminata = An revera S. acuminata, Sm. } quae ad sectio-nem S. viminalis pertinet.'' Amenta desunt. An forsan varietas S. cinereae ? 38 — 42. Omnes formse et varietates S. cinerese, L. 43. Salix — an S. aquatica? Longe diversa, est sine dubio forma S. laurinae, Sm., confer amenta. Eandem plantam ex hort. bot. Berolinensi, et ex Silesia possideo. 44. S. oleifolia, Sm. } =Pro var. S. cinereae, L., habeo, sed amenta non vidi. 45. S. aurita, L. = Forma sylvatica apud nos frequens. 46. 47. S. aurita, L. ! 48, 49. S. reticulata et S. herbacea. W. SOxVDER. Hamburg, March 19, 1844. Mr. Van Voorst has just published a very useful " Catalogue of British Vertebi ated Animals, the names derived from Bell's British Quadrupeds and Reptiles and Yarrell's British Birds and Fishes : so printed as to be available for Labels." The label consists of the English and Latin names and a reference to the volume and page of the excellent works above-mentioned. Preparing for Publication. A History of Infusoria, Living and Fossil: arranged according to " Die Infusionsthierchen " of C. G. Ehrenberg. By Andrew Pritchard, M.R.I. Microscopic Illustrations of Living Objects, with Researches concerning the Methods of Cotistructing Microscopes, and Instructions for using them. To which is added, a Supplement on the Verification of Mi-croscopic Phenomena, and an Exact Method of Testing Microscopes. By C. R. Goring, M.D. By Andrew Pritchard, M.R.I. Third Edition. PROCEEDINGS OF LEARNED SOCIETIES. ROYAL. SOCIETY. March 21, 1844. — " A description of certain Belemnites, pre-served, with a great proportion of their soft parts, in the Oxford clay at Christian Malford, Wilts." By Richard Owen, Esq., F.R.S., &c.,
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