bought the Opera, by which means I perceived the Sparrows were to act
the part of Singing Birds in a delightful Grove: though, upon a nearer
Enquiry I found the Sparrows put the same Trick upon the Audience, that
Sir _Martin Mar-all_ [1] practised upon his Mistress; for, though they
flew in Sight, the Musick proceeded from a Consort of Flagellets and
Bird-calls which was planted behind the Scenes. At the same time I made
this Discovery, I found by the Discourse of the Actors, that there were
great Designs on foot for the Improvement of the Opera; that it had been
proposed to break down a part of the Wall, and to surprize the Audience
with a Party of an hundred Horse, and that there was actually a Project
of bringing the _New River_ into the House, to be employed in Jetteaus
and Water-works. This Project, as I have since heard, is post-poned
'till the Summer-Season; when it is thought the Coolness that proceeds
from Fountains and Cascades will be more acceptable and refreshing to
People of Quality. In the mean time, to find out a more agreeable
Entertainment for the Winter-Season, the Opera of _Rinaldo_ [2] is
filled with Thunder and Lightning, Illuminations, and Fireworks; which
the Audience may look upon without catching Cold, and indeed without
much Danger of being burnt; for there are several Engines filled with
Water, and ready to play at a Minute's Warning, in case any such
Accident should happen. However, as I have a very great Friendship for
the Owner of this Theater, I hope that he has been wise enough to
_insure_ his House before he would let this Opera be acted in it.

It is no wonder, that those Scenes should be very surprizing, which were
contrived by two Poets of different Nations, and raised by two Magicians
of different Sexes. _Armida_ (as we are told in the Argument) was an
_Amazonian_ Enchantress, and poor Seignior _Cassani_ (as we learn from
the _Persons represented_) a Christian Conjuror (_Mago Christiano_). I
must confess I am very much puzzled to find how an _Amazon_ should be