As it was expedient to compare my Description of the _Chinese Tea_ with those which _Dodonæus_ gives of the Herb _Betony_, and the _Chamelæagnus_; so, in this Place, I think it proper to insert the Descriptions which _Clusius_ has given of the _Pyrola Fruticans_, and the _Spiræa Theophrasti_; the former of which he describes in the following Manner: "One Genus of this Plant is sometimes of a shrubby Nature; for new, short, and small Branches springing up every Year, remain firm and green for some Years, and rise above the Earth, till by their own Weight they bend downwards, hide themselves in the Ground, and sometimes send out fibrous Roots. Two, three, or four small carnous Leaves generally grow between the Nods: The superior Parts of these Leaves are of a deep green Colour, and shining, whilst, in Form and Bulk, they almost resemble those of the _Chamædaphne_, or _Laureola_, only they are serrated about the Edges, and of an highly drying and bitterish Taste, like the Leaves of the other Species of _Pyrolæ_." These last Words ought carefully to be adverted to. The same _Clusius_, in _Lib. 1._ in _Rarior Plantar. Histor._ describes the _Spiræa_ in the following Manner: "It rises to about the Height of two Cubits, with small Branches, or Twigs, covered with a reddish Bark. Among these Branches arise, without any Order, numerous, long, and narrow Leaves, resembling those of the Willow, serrated about the Edges, with their superior Surfaces of a faint green, and their inferior as if they were besprinkled with Verdegrease: They are of a drying and kind of bitter Taste." The last Words of this Description are also to be carefully adverted to, since the Leaves of _Tea_ are not only serrated, but also of a drying and bitter Taste. As, therefore, the _Pyrola Fruticans_ of _Clusius_, and the _Spiræa_ of _Theophrastus_, and especially the former, are of a drying and bitterish Taste, it is highly probable, that the _Chinese Tea_ may be adulterated with one, or both of these; especially, since they not only greatly resemble each other in Form, but also in Taste. A Cut of one Leaf of the _Pyrola_, I have annexed to the Description of _Scurvy-Grass_, in my _Quadripartitium_, No. 9. and another of a _Tea-Leaf_, produced in _China_. As for a Cut of the _Spiræa_, the Curious may have recourse to _Clusius_, or they may find one Leaf of it accurately engraved in Plate 2, of this Work; where two Leaves of _Chinese Tea_ are engraved. The larger of these is so like the _Spiræa_ of _Theophrastus_, both in Length, Breadth, Bulk, the Course of the Veins, and the Disposition of the Crenations, that there is hardly the smallest Possibility of distinguishing the one from the other: But both these Leaves are vastly unlike to that _Tea_ Leaf which, in No. 7. of the last cited Plate, I ordered to be engraved, with the _Cochlearia Danica_: But the other small uncrenated Leaf is like the _Chinese Tea_, as the latter is like the _Chamelæagnus_, which, as I have already