68 Royal and Linnaan Societies. 



{Miicedines Link.), which grows upon damp gramineous plants 

 in the Herbarium. The genus is adopted from Micheli, and 

 is characterized anew by Mr. Greville : " Minutus, caespitosus 

 vel sparsus. Plantulae filamentosae simplices vel ramosae sep- 

 tatae, apicibus plerumque clavatis, et capitulis sporidiarum in- 

 structis." The species is thus designated: " Cinereus, spar- 

 sus, gregarius, simplex : capitula sporidiarum laxa, subnutan- 

 tia; sporidiis moniliformibus." — T. S5. Erineum aureumVers. 

 and Grev. in Edin. Phil. Journ. — T. S^. Cyathus Cmcibulum 

 Pers. {Nididaria Iccvis Sow.), of which we have beautiful dis- 

 sections, showing the highly curious structure and elastic na- 

 ture of the stalks of the lentiform bodies, which had escaped 

 the notice of preceding naturalists. — T. 35. JEcliinclla circu- 

 larise already figured and described by our author in the 

 Transactions of the Wernerian Society. 



In the 35 Plates now published of this work, we have illus- 

 trations of no less than 20 genera of British Fungi. 



Arrangements, we understand, are made for the speedy 

 publishing of this author's Flora of the Environs of Edinburgh, 

 under the title oi Flora Edifiensis. 



XVIII. Proceedings of Learned Societies. 



ROYAL SOCIETY. 



Jan. 9. '■ I ''HE reading of Professor Daubeny's paper on Rocks 

 -■- that contain Magnesia was resumed and con- 

 cluded ; and a paper was read, entitled " Some Corrections 

 applied to the great Meridional Arc extending from Latitude 

 80° 9' 38",39, to Latitude 18° 3' 23",64, to reduce it to the 

 Parliamentary Standard." By Lieut. Col. W. Lambton, F.R.S. 



Jan. 16. Some Practical Observations on the Communica- 

 tion and Concentration of the Magnetic Influence. By Mr. 

 J. PI. Abraham, of Sheffield. Communicated by the President, 



Observations on Magnetism. By John Macdonald, Esq. 

 F.R.S. Part only of this paper was read, 



Jan. 23. The reading of Mr. Macdonald's paper was re- 

 sumed and concluded; and the Society, according to custom, 

 adjourned over the anniversary of King Charles's martyrdom 

 to Feb, 6. 



LINN.EAN SOCIETY. 



Jan. 21. The following communications were read: 

 Descriptions of three Insects of Nepaul ; by Major Generg,! 



T. Hardwick, F.L.S. : viz. Gerris laticatidata (Cimex Linn.)y 



JPanorjm major, and Bomhylins longirostris. 



