[ iv D 
XVIII. Description of an Apparatus for the Analysis of the Com- 
pound Inflammable Gases by slow Combustion ; with Expert - 
ments on the Gas from Coal, explaining its Application. By 
William Henry, M. D. Vice-Pres. of the Lit. and Phil. 
Society, and Physician to the Infirmary, at Manchester. Com- 
municated by Humphry Davy, Esq. Sec. R. S. p. 282 
XIX. An Account of some Peculiarities in the anatomical Struc- 
ture of the Wombat, with Observations on the Female Organs 
of Generation. By Everard Home, Esq. F. R. S. 304 
XX. On the Origin and Office of the Alburnum of Trees. In a 
Letter from T. A. Knight, Esq. F. R. S. to Sir Joseph Banks, 
Bart. K. B. P. R. S. - - - 313 
XXL. Eclipses of the Satellites of Jupiter, observed by John 
Goldingham, Esq. F. R. S. and under his Superintendance , at 
Madras, in the East Indies - - p. 322 
XXII. Electro-Chemical Researches, on the Decomposition of the 
Earths ; with Observations on the Metals obtained from the 
alkaline Earths, and 071 the Amalgam procured from Ammo?iia. 
By Humphry Davy, Esq. Sec. R. S. M. R. I. A. 333 
Presents received by the Royal Society, from November 
1807, to July 1808 - - 371 
Index - - - - - 3 77 
