[ l8 7 ] 
Cortex i next to, that, a black pitchy Subfiance 5 and, 
within that, an exceeding white radiated Matter, which 
looks like a fine white Salt, and is, probably, a Mix- 
ture of a volatile pungent Salt with a farinaceous 
Subfiance: The Radiation feemsto confirm this Opi- 
nion 5 for, if it were only a Farina , it could have 
no fuch Appearance, and fo does its exceeding fharp 
Tafie. But the mod remarkable and curious Part of 
this Seed, is a little Piece of Camphire , exactly fhaped 
like a common Vinegar-Crewet, having a round 
Bottom, and a long taper Neck. This is the conflant 
Form in Hundreds of thefe Seeds that 1 have cut. 
Thefe curious Appearances, I believe, were never 
obferved before. 
As I would always endeavour to avoid Prolixity, 
in any thing I have the Honour to lay before you, 
I fhall, at prefent, only mention one more Seed, 
which is that of the great Maple-Tree. It confifls 
of a Pod and its Wing : Two of thefe grow upon 
a Foot-flalk with the Pods together, which makes 
them refemble the Body of an Infed with a Pair of 
expanded Wings. The Wings are finely vafculated, 
and the Pod is lined with fine filky Down, which 
contains a round compad Pellet cover’d with a brown 
Membrane, that flicks very clofe to it. When this 
is peel’d off, inflead of difeovering a Kernel, as in 
other Seeds, an intir z green Plant appears to be folded 
up in a moft furprifing manner, whofe Pedicle is 
about two Eighths of an Inch long, and its feminal 
Leaves about fix Eighths each.; between which the 
Germinh of the next Pair of Leaves are barely via- 
ble to the naked Eye, but plain with a Microfcope . 
This Difcovery.,gave me great Pfeafure,, as believing 
myfrlf. 
