Adjudication  of  the  Medals  of  the  Royal  Society  for  the  year  1858  by 
the  President  and  Council. 
The  Copley  Medal  to  Sir  Charles  Lyell,  for  his  various  Researches  and  Writings 
by  which  he  has  contributed  to  the  advance  of  Geology. 
A Royal  Medal  to  Mr.  Albany  Hancock,  for  his  various  Researches  on  the  Anatomy 
of  the  Mollusca. 
A Royal  Medal  to  Mr.  William  Lassell,  for  his  various  Astronomical  Discoveries 
and  Researches. 
The  Rumpord  Medal  to  M.  Jules  Jamin,  for  his  various  Experimental  Researches  on 
Light. 
The  Bakerian  Lecture  was  delivered  by  J.  P.  Gassiot,  Esq.,  F.R.S.,  and  entitled 
“ On  the  Stratifications  and  Dark  Band  in  Electrical  Discharges  as  observed  in  Torri- 
cellian Vacua.” 
The  Croonian  Lecture  was  delivered  by  T.  H.  Huxley,  Esq.,  F.R.S.,  and  entitled 
“ On  the  Theory  of  the  Vertebrate  Skull.” 
