334 Linnean Society. [May 24, 



being a most elaborate compilation of all that had been previously 

 published, both as regards facts and theories, in this highly import- 

 ant and extensive field of inquiry, together with exact and scrupu- 

 lous references to the original authorities for every statement and to 

 the sources from which more detailed information may be derived. 

 He subsequently projected a new translation of Pliny's ' Natural 

 History,' of which he printed the first and thirty-third books as a 

 specimen for private distribution, in 1828, and in which he had made 

 considerable progress at the time of his decease. For two or three 

 years before his death his health had been gradually declining, and 

 he finally sank under an attack of cholera on the 6th of August 

 1846. 



William Bridgman, Esq., F.R.S. S^c, became F.L.S. in 1799, and 

 died on the 6th of January 1847. 



Mr. Lionel Dietrichsen. 



Sir Thomas Grey. Kt., M.D., F.R.S., was a native of the county 

 of Selkirk, and became a surgeon in the Royal Navy in 1794. He 

 was knighted for his professional services, first by the Lord Lieute- 

 nant of Ireland, and afterwards by the Prince Regent in 1819. He 

 became a Fellow of the Linnean Society in 1814, was for many years 

 a magistrate of the county of Kent, and died at St. Lawrence in the 

 Isle of Thanet on the 17th of July 1846. 



Charles Hatchet t, Esq., was eminently distinguished for his know- 

 ledge of chemistry, as well as for his amiable disposition and liberal 

 spirit. A detailed account of his life and writings will probably be 

 given elsewhere, but it is right that he should be mentioned here as 

 the founder (in conjunction with the late Sir Everard Home) of the 

 Animal Chemistry Society, consisting of a very few members of the 

 Royal Society, who met at distant intervals under a regulation that 

 the papers read at their meetings should be afterwards communicated 

 to the parent body. Many valuable papers (and among them several 

 by Mr. Hatchett himself) communicated by this Society are printed 

 in the ' Philosophical Transactions.' 



Mr. Hatchett became a Fellow of the Linnean Society in 1 795, 

 and of the Royal Society in 1797. He contributed to the eighth 

 volume of our ' Transactions' a paper entitled " Some Account of the 

 Pitch Lake in the Island of Trinidad, in two Letters : the first from 

 Samuel Span, Esq., to James Tobin, Esq., F.L.S. ; and the other 

 from Mr. Tobin to Charles Hatchett, Esq., F.R.S. and L.S. ; with 

 observations by Mr. Hatchett." His death took place in February 

 of the present year, at an advanced age. 



George Loddiges, Esq., was born on the 12th of March 1784, at 



