( iii ) 



CONTENTS. 



PART I. 

 [. On the Malayan Species of Melastoma. By William 

 Jack, M.D. Communicated by Robert Brown, Esq. 

 F.R.S. and L.S. . - - _ _ p. i 



II. On CyrtandracecE, a new Natural Order of Plants. 

 By William Jack, M.D. Communicated by Aylmer 

 Bonrke Lambert, Esq. F.R.S. V.P. L.S. - p. 23 



III. Remarks on the Identity of certain general Laws which 

 have been lately observed to regulate the natural Distri- 

 bution of Insects and Fungi. By W. S. MacLeay, Esq. 

 M.A.F.L.S. ------ p. 46 



IV. Some Particulars of the Natural History of Fishes found 

 in Cornwall. By Mr. Jonathan Couch. Communis 

 cated by Sir James Edward Smith, M.D. F.R.S. 

 Pres. L.S. - - - - - - p. 6'9 



V. A Description of some Insects which appear to exemplify 

 Mr. William S. MacLeay's Doctrine of Affinity and 

 Analogy. By the Rev. William Kirhy, M. A. F.R.S. . 

 and L.S. - - p. 93 



VI. Some Account of a new Species o/Eulophus Geoffroy. 



By the Heu. William Kirby, M.A. F.R.S. and L.S. p. Ill 



VII. Account of the Lansium and some other Genera of 

 Malayan Plants. By William Jack, M.D. Com- 

 municated by Henry Thomas Colebrooke, Fsq. F.R.S. 



and L.S. - - p. 114 



VIII. De- 



