( 175^ ) 
Icomply'd with his requeft, and irii|>arted to him my 
poor Obfervations. 
Hereturn'd me an anfwer to that Letter, and at the 
fame time fent me a Plant of the Indian Fig, upon vvhich 
the Cochineel Worm , (for fo the ProfefTbr calls 
thole Aninialcula ) are to be found s ^^nd the Leaves of 
two forts of Aloes, to try whether there were in them 
Teveral forts of Tubes that bring up the Yellow Sap, &c. 
I think it not' improper to communicate to your 
Honourable Body my poor Remarks upon the fame fub- 
jea. 
You muft know then, that I firft obferv*d the external 
Skin or Membrane of the Leaves of Aloes, to difcover^ 
if po^Sble, of what Tubes or Pipes they were composed , 
but do what I could^ I was not able to find out the Con- 
junftion of the Parts, becaufe that Membrane was fo 
weak and tender, that it always broke without any re- 
markable Difcovery. 
In this Difquifionlobferv'd that in the faid Membrane 
there lay, as it were preft in roundifh Particles that looked 
like little Bladders, and in thofe little Bladders, green 
Particles , that had a Sap in em 3 and they lay as it 
were in a right Line, and fo interwoven with each other, 
I that they ferv*d ( as I imagined ) for Tubes or Canals.^ 
I The impreflions ofthefe round Particles was in ieveral 
places fo regular, that each conGfted of fix Gde^, difpos'd 
intheexafteft order that can be imagind , and in each 
Particle one might difcover a Protuberance, and they 
were feparated from one another by . Rings or Circles, 
which I fuppos*d to be the Canals. 
I caufed a fmall part of the foremention d Hexangular 
Particles to be drawn juft as it appcar'd thro my Micro* 
fcope > fee Tab. 2. Fig. i. A B C D in which fome of the 
Canals, in order to diftinguifh them the better, are re- 
prefented outwards, as at A B C D. 
LlllllllU 
When 
