
 
        
         
		E x p l a n a t i o n   of   the  Pl a t e s . 
 T ab.  i . 
 Fig.  i .  Adlinia  fociata,  pag.  5.  5. 
 A.  one  o f   the  heads  expanding  its  claws. 
 B.  a  younger  one  proceeding  from  the  end  of  
 the  tube. 
 Fig.  2.  one  of  the  animals  differed  longitudinally  to  
 {hew  the  infide  magnified. 
 Fig.  3.  Adtinia Calendula,  pag.  7.  n.  10. 
 Fig.  4.  A lc yon ium   mammillofum,  pag.  179.  n.  5. 
 Fig.-  5.  tw o  cells  o f   the  fame  magnified  and  d iffe re d   
 long itud in ally to ih ew   the polypes  contracted. 
 Fig.  6.  Alc yon ium   ocellatum,  pag.  180.  n.  6. 
 Fig.  7.  One  of  the  Polypes  of  Alcyonium  digitatum,  
 pag.  175.  71.  1.  with  its  tentacula  extended. 
 T ab.  2. 
 Fig.  r.  Gorgonia  ceratophyta diverted  of its  flefh.  This  
 affords  an  inftance  of its  bone growing over and  
 furrounding  one  of  its  former  branches,  and  
 afterwards  covering,  as  at  A.  fome  Tree  Oy-  
 fters  that  have  adhered  to  the  firft  branch. 
 Fig.  2.  a  quarter of a  horizontal  fedtion  of it. 
 Fig.  3.  the  fame magnified,  to fhew the  different  layers  
 of its  growth. 
 Fig.  4.  An  old  ftem  of  Gorgonia  verticillata,  with  fcaly  
 layers,  flaining  and hard,  like mother of pearl. 
 Fig-  5- 
 jg.  5.  the top  of it magnified. 
 Fig.  6.  A   piece of red  Saunders  (Lignum Santalum)  from  
 the  Eaft  Indies. 
 Fig.  7.  the  fame magnified,  to  fliew  the  utricular  vef-  
 fels  interwoven with the  longitudinal  tubes. 
 Fig.  8.  Fluftra foliacea,  pag.  12.  n.  2.  a  little magnified. 
 T ab.  3. 
 Fig.  1.  Ifis  Plippuris,  pag.  105,  n.  2. 
 A.  the  bone covered with  the  flefh,  full  of the  
 cells  from whence  the  polypes are  extended. 
 Fig.  2.  a  longitudinal  fedtion  magnified,  {hewing  the  
 bone furrounded by the flefh,  and  the polypes  
 contradted  in  their  cells.  - 
 Fig.  3.  the  flefh  feparated  from  the bone,  to  fhew  the  
 tubes with  the  holes in  them,  that  fupply  the  
 bony part  with  increafe. 
 Fig.  4.  the  crofs  fedtion  {hewing  the white  bone  in  the  
 center with  the tubes furrounding it,  and the  
 polypes  in their  cells  on  the margin :  the intermediate  
 flefh is  full of organical parts, that  
 ferve to receive nourifhment from the mouths,  
 as well  as  to  give  them  the  power  of extending  
 their  arms  in  fearch  of it. 
 Fig.  5.  one  of the  polypes  contradted ;  magnified. 
 Fig.  6.  Fluftra  carbafea,  pag.  14.  «.5. 
 Fig.  7.  the fame magnified. 
 T ab.  4. 
 Fig.  a.  Fluftra  verticillata,  pag.  15.  n . j . 
 Fig.  A.  .  the  fame highly magnified. 
 Fig.  b.  Fluftra  bombycina,  pag.  14.  n.  6. 
 C  c  Fig.  B.