162 
— fhhould be ¢arri 
4 
MrerRoGcRAPHIN, 
of Vegetables altogether mechanical, and as neceflarysthat (water and) 
warmth being apply'd tothe bottom of the fprig of;a Plant) fome ofit 
ied upwards dnto.the ftem, and thence diftributed.inte the 
leaves, as that the water of the Thames covering the bottom of the Mills 
at the Bridge footof London, and by the ebbing and flowing of it; pat 
fling ftrongly by:them, fheuld have fome part of. it convey'd ‘tothe . 
€efterns above,and thence into feveral houfes and Cefterns up and down 
the Giggs 
*\ 
rae AS r8 8 | 
Obferv.. RXXIT.. Of the Scales of a Soal, and otber Fifi 
Aving hinted fomewhat of the {kin and covering of terreftrial Ani- 
, mals, I fhall next add an Obfervation! made on the fkin and §caleg 
of a'Soal, a {mall Fith, ‘commonly enough known and here in Fifhes,as_ 
well as other Animals, Nature follows its ufual method,:framing all parts 
fo,..as that they are both ufefull and ornamental in all. its compofures, 
mingling ‘w/e and dice together’; and. both thefe defigns it feems to 
follow. h ourunaffifted fenfes are not able to peceive them : Thisis 
not onely manifeft in the covering of this Fith emby, but in multitudes of 
others,which it would be too long to-enumierate,witnefs particularly, that 
{mall Sand Shell, whichT mention’d in the: X L Obf€rvation, and infinite 
other fmall Shells and Scales, divers of which Lhavé.view'd. This tkinI 
view'd, was flead from a prettylarge: Seal, and thenexpanded and dry'd, 
the infide of it, when dry, to the naked eye, look’d very like a piece of 
Canvafs,but the Aéera/cope difcover'd that texture to be nothing elfe,but 
the inner ends of thofe curious Scolop’d Scales I, LI, inthe fecond Figure 
of the X XI. Scheme, namely, the partof GG GG) (of the larger reprer 
fentation. of a fingle Scale, in the firft Figure of the fame Scheme) which 4 
on the back fide, through an ordinary ‘fingle Magnifying Glafs,Jookd 
not unlike the Tyles.on an houfe. | f tsi? I worst 
\ The outfide of it; to the naked eye, exhibited nothing more of .ornar 
ment, fave the ufual order of ranging’ the Scales into a triagonal: form, 
onely the edges feem’d a little to thine, the finger being rubb d.-fromthe 
tail-wards towards the head, the Scales feem'd to ftay and raze its Bat 
through an ordinary! Magnifying glafs, it exhibited ‘a moft curioully 
at va adorned furface, fich as " vifible in the fecond ie te 
(formerly almoft imperceptible) Scales'appearing much of the 
fhape I, I, I, that is, they ase round, an protuberant, and fomewhat 
a as aScolop,. the whole Scale being creas'd with curionfly:wav'd 
indented ridges,with proportionable furrows betweenseach of which 
Wwasterminated witha very {harp tranfparent'bony fubftance,which,like 
fo many. inal Turmpkes, em toarmtheedges;i. 5 
_. The'back parte KKK was the fkin into which each of thefe Scales 
were very deeply fix'd,in the curious regular order, vifible in the fecond 
Fi 1GUres 
