
 
		O g j   C  O  R N   W A   L   L,  
 rifks 'of <gold^#but  'theif  beautiful  coloui? immediately faded}  though  
 fcep^ÏB^falt water,  fô  that  they* asc  to  be  feen in perfection only and  
 drawn*(afe thefe^ere) omthe  fpbt,  and when  the  alcyondum  is  fixed;  
 when'tidied,  they  flirivekup  likd|aCf «piece. o£:finged leather,,  and  their  
 fubftance  fermprite ftrongly withu^«« fertis'.  There’is  no doubt  but  
 th’efe  akyonhap^jconfift of  an‘arrangement  of  the jelly-liâe  bodies  
 of W certain'aS^fial'detetminëmö form,in  fuch  thim coatings  upon  
 the  roëksTf:  TM   ingenious;' Mr;' Ellis »  has  fhewn  beyond  contra-*  
 diftioh  that the Jsèrallines safe pervaded in all their fiajfcs and branches  
 by  polype's.%*  Into  thefe  bodiè®^|fo  adapted  their  jointed (tincture  
 to  fldat  to and  fra  in  theewater,  and  to  place  them  in  .the  
 reach  of  theitSpioper  prey} ithey  either  infinuate  thpmfelves,.  exca-*  
 vating  cells  for, their  eggs,,  and  ffififening  tubes  and  pafiâges  for1  
 therhfelves  and -ftheir  fteple  young  ones,  or  according  to  another  
 hypothefis  lately  efpoufed  by  .gbntkmen  of  great  experience  in  
 this  branch  of fcience *,  they form  this coralline  armature  for  thein-  
 felvcs  from  the very  foundation,  being  taught  their  leffon  by  the  
 fame Mafter who  inftrufts  the fhail,  the  oyfter,  and  the  belemnite  
 to  build  according  to  the  exigencies  of  their  (pecifical  fhape  of  
 body*.  However that  be,  through  the  extremities of the  coralline  
 boughs  they  tbruft  forth  their  tmtamla of arrasto  fi|ze  their prey ||  
 they^am fo (mall  that  they are  feldom  to, M 'f e a  but in rhicrofcopes,  
 their  prey is  proportionably  finaller  and weaker*  yet  probably  àni-*  
 mals,  and  thofe have  other fubordinate^é«|j. o f animal-focd’beyona  ;  
 the  reach  of  glades  ffor what  elfe  but  animal-food  can  eonfift  o f |a   
 parts  fine  enough  for  their  vital pafîàges?} ;  all  théfe  are  (urniihed  
 ^ith  life and motion,  that whilft  they  range  in  feaxch  of  their own  
 food,  fbe^may  difperfe  and  gradually  communicate  animal  nou-  
 rifhment  to  their  fuperiors in  fize and ufefulnefs  to mankind.  , 
 Among  a  parcel  of  fca-plants  brought  me March  24,  17.52,  I Worms,  
 found  a  fea-flug,  fmooth  and  flimy  as  the  land-flug  or  dew-fnail,  
 pointing  forth  its  eyes  on  its antenna  it  crept  and  clafped,  con-  
 rafted  and  extended  itfelf,  (as  the  fnail)  by  its  belly,  but  had  this  
 peculiarity,  that  it emitted  at  times  a moft  beautiful purple eobur ;  
 whén it   vvas  almoft  dead,  on  dropping  alfew  grams  of ffalt  oh  its  
 back, it  fent  forth  the purple  dye very plentifully.  It  feems  to  me of  
 the Éolothuriâh kind ;  öf lyhbk Rondeletius  treats,  part 11.  p.  1 2 $ 
 Fig; Xm.  Plate XXVI.  is  the  long-worm  found  upon Careg-killas,  
 in Mount’s  Bay,  which,  though  it  might  properly  enough  come  in  
 among  the anguilli-form  fifties,  which  are  to  fucceed  in  their  order,  
 yet  I  chufe  to  place  here  among  the  lefs  perfeft  kind  of  fba-ani-  
 mals  :  it  is  brown,  and  (lender  as  a wheaten  reedj  it meafured  five. 
 '  ‘V  F; R. S. London, Hift.  of Corallines, printed  *  Mr. Ellis,  before-mentioned,  and others, 
 jn London 1755,  WIMa*  *  ,  *  See page 242,  before.  ■ 
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