
 
		74 N   A   ï   U  R   A L   I  ' H I S T O R Y 
 «  -But' . th© uncertainty  ar ifing  from.  the  A f  ibfiife '-is 'ifijfl  in- 
 ,i:.Place.  creafeddiyft-he  variety of  plases ^  .BKhicb wesfindsthem,. anditfee different  
 manners  in ,w;bkb They  aace  difppfed  in  itheir  ifeveral  places;  
 There  is  fcaxee any vegetable foil .or ;day:bat has  its  portion  of land,  
 hardly a  gravelrpit, though  in  ever lb  inland 4 .country,  hut has fond  
 in  i t ;  m^ny jftrata  i£>f  ilone  have!  fome  fond;  atove  them.  Great  
 part  ,of  the  bottom  o f  .the  fea  kietsKered  with:  fond;  the^Thore  is  
 fringed with it,  efpedAy where ;the’  brim  of  the  lea is  Shallow,  and  
 the ftranddoesnot dip  tq©  faft:  and  Ibme  countries, not only ©n th©  
 horders-of idle- fea,  hut whole  regions,  i$qr  feme hundreds o f  mile%  
 have  nothing  but  this dreary .covering *,  and  are  therefore  called the  
 1 Deforts.  We  find it  alfo  in  gquA s and fbafo foaetimes 5  but what  
 is  moft  lurprizing  of  A ,   we  find  thofe  lands,  which  undoubtedly  
 came  from  the  fea,  in  ftrata  or  layefs  on  the  tops - o f  the.  higheft  
 hills.  The  queftfon,  well worthy  of  every Naturalift’s enquiry,; is,  
 How fonds  came  to  be  fo univerfally and yet  fo  irregularly difpbfed ?  
 I  fib A   confine  myfelf  to  the  moft  remarkable  appearances  
 o f  fond  in  this  county.  Sand,,  in  our  vegetable  and-(day,  
 is  common  every  where,  and  may  be  reckoned  among  natural  
 fonds.  In  ComwA  the  natural  lea-fond  is  found  in much  more  
 plenty  in  the  north  chanel,  than  in  the South :  from  the  mouth  
 of Heyl,  in  Penwith,  along  to  Bude-haven,  Cornwall  has  loft  a1  
 great  deal ©f  arable  grqund  on  the Northern, eoaft  by-inCans  of  the  
 blown  fea-fond,  which; is ftilf  iqcreafing.  in the  parifhes of  St,  Ives.  
 Lannant,  Philac, Gwythien, St. Agnes,  PiranSand,  Gafantoc,: Ctith-  
 bprt,  Padftow,  and  the  fond  fpreads  every w h ^  dsmt wbdr©  the  
 height  of the  cliff protects the lands from its  invafion.  On the South  
 wehaveno  lands  over-run by the fond ;  fothat  either a gfeaifef quantity  
 o f  it  is  lodged by  nature  in  the  north - chanel  than  in  the South,  
 (one  part  of  the  bottom  o f  the  fea  being  as naturally  liable-to  t e   
 mare  fondy  as  to  be more  roeky  than  another )  or  the river Severn  
 brings  down,  with  its  muddy  waters,-a  great  quantity  of  earth  
 and  natural  fond;  the  earth  is  diffipated,  or  refts  in  fheltered  beds,  
 the  fond  is  driven  by  tide  and  wind  upon:  the  fhofes,  and  thence  
 upon  the  land.  In  the  South  chanel  there  is  no  fooh quantity,  or  
 at  leaft  fuch  a  continual  accretion  of  fond j  and  therefore  no  fuch  
 defolation. 
 s e c t . vi.  O f  Sands  on the  fea=-£hore,  fbme are always  quick  and  dangerous, 
 andwhy!ck’   f°me  are  only occafionally.  fo.  Thofe fonds which  are  always  finking  
 and unfofeto tread on,  confift of a layer of fond fpread on the tops 
 ©  F '  V.fj&O  R i f   W J L L L .   H  
 of  bogs*;  and  where  this  covering is  thin,  the  fonds  are  dangerous  
 in  proportion  to  the  depth  of  the  bogs  underneath.  Where  the  
 fonds. are  only quick  at  particular  times,  as at Heyl  in Penwith,  and  
 on  the  ftrand  betwixt  Penzance  and  Marazion,  and  elfewhere,  the  
 alteration  is  owing  to wind  and  fea:  in  calm  weather,,  fands  .fettle,  
 a  ftormy^feg. wilfftir and. fhift 
 jlr^Upm  of  fondyh^pdenfe. foqd.4ajpcumAafe.it .fe-feme  pikesj  
 and  fojtt&hers  lea^  .the  and/diluted,uthat, it  cannot 
 bear  it?he weigh&3©f  .man  or  horfefc«vhieh muft  therefore  fink  into  
 thofeteplaces whence,'the  land  is  difperfed,  till  they  confe  .to  that  
 which' has ncfo yet. been  moved  by;the-ftorm. 
 ïn^Tome’^ è l ,   but  |artiGula®® Jjhe, panlÉbf/CqnftanïïniEcr. vn. 
 ' fond/ Soit>ei" :■ 
 fpread  under  e  top  o f "the ftrMa%o f iJmor- ^ 
 ° ^ fu ° ar^°ne  liesi  in,  èrfital^ nbtwifhilariclmg  any  
 affertions to the contrary, willjbejfiifficiehtiy  proved  in“fbe Tóllbvs|S^ 
 the.  fame  8 
 fnoorftone  below  it jT o  that,  till it  is‘ftirrecl ^rom^^nathrff1 pofi-  
 fion,  to "the  eye  it'  appears  as j'ihqbrftqn4 ' ? ^ t o q  ^almraliis  Jave  
 fuppofed  this  fond  td have  been  fretted  off* from  the  moorfiohe, . orf-  
 which it lies,  by the Watersvpf the univerfol Deluge ; | hut ffeppofing  
 the  waters  pf  the. Deluge  of fufficient  force  to ha^e  effected  fifeh fo  
 feparation,  which  is  far  from  being  agreequpcMfupc^.examnation^ 
 B h | reticles  9 
 Iar  to  have undergone fuch a trituration\'\heri&s,. tfoey are pptblaced  
 fpecifically/fos ïo'Veight  and  fize,f with  lar^Tduride^hebbles' Yrfo  
 termixed,  as  they would  have“been  if  they  had been feparated from  
 the  furface  of  ftones,  and  ffterwards  depofited by  tkp w^terl{JQf tSI  
 Deluge; :  I  fhould  therefore  rather'imagine' tfrele  fands fo^h^e'beeïi  
 natural,  and  fbme  o f  the  priipa.ry  concreted' materials  of which  
 moórftorte  appears  to  have  been formed,  aiid  that mborftone  confifts  
 |AiIy  of  the  lame 'grit,  cemented  into  ftohe. by a cryfïakbafi^f  
 the  bAs,  which  fbrrtis  A   fton^  was  m^^lÉaqdant^ Öelow  in^éil*  
 bowels  of  the  earth,  than  near  the  furface  (as^appears’ by^fhe  generality  
 of  foflils  being of  a  morq sompadt  confift|nce  the foeepaj ^ve  
 dig).y)  that,  from  a  deflciency  of  this  cemenfror  bafis  near  the  
 furface,  as well  as  the  interfering powers o f  air,  heat,  and  colHfthis  
 fondy  gri|| never was  fixed  into  frone,  but  alwkjls foemainecPin  the  
 prefent  incoherent  ftate. 
 But  the  fituation  of  fonds  möft'  difficult  to  bfe'J accounted  for^sECT.vAl  
 according^to  the  theories  at  prefent  moft  favourably ^bought'of,  is Sea-rand  I 
 Sea-  , 
 at Youghall,  in  the  co.unty  turf-bog,  covered with  fand  and  pebbles.  ' Hift9 mark.  ^  
 w  Görkj  Ireland,  is  no  more  than  a  common:  of Cork,  page T09. 
 f f lp gee before,  pag;? 71.  - 
 that