APPENDIX s 



1818. 

 Jan. 24. 

 Mr James 

 Wilson on 

 the Early 

 State of the 

 Tadpole. 

 Mr Adie's 

 newly con- 

 trived Ini 

 strumeht 

 named Sym- 

 piesometer, 

 described » 



The Secretary read a communication from James 

 Wilson, Esq. on the Early State of the Tadpole, 

 shewing its connection with the globular egg, by 

 means of a filament, analogous to an umbilical cord* 

 Mr A die afterwards exhibited and explained his 

 new instrument called the Sympiesomeier, or Mea- 

 surer of Compression ; in which the moveable co- 

 lumn consists of oil, enclosing, in a glass tube, a 

 portion of azote, which changes its bulk according 

 to the density of the atmosphere. A sliding scale 

 is attached, to ascertain the temperature* 



The Secretary read a communication from Df 

 Traill of Liverpool, giving an account of the Dis-> 

 section of a specimen of the Orang Outang of Africa, 

 which died lately at Liverpool, illustrated with 

 drawings, and containing also some notices concern- 

 ing its manners and habits during the voyage* 



1818. The Secretary read the remainder of i)r Traill's 

 conclusion account of the Orang Outang. Mi* Bullock ot 

 Accou^Tof s London being present, exhibited a specimen of the 

 outang ng Anser ruficollis, shot neat Berwick ; being the first 

 known instance of the occurrence of that bird in 

 Britain, during the last thirty years. At the same 

 meeting, a valuable collection of the Ferns of Tris- 

 tan d'Acunha was presented by Captain Car- 

 michael, who had himself collected them on that 

 remote island. 



1818. 

 Feb. 7. 

 Dr Traill's 

 Account of 

 the Orang 

 Outang of 

 Africa. 



