(662) 
to the Brain, and there, by its vifcofityV obftru&s the Nerves in 
the place where they meet, and fo hindring the Animal Spi- 
rits ;o pafs into the Organs, caufeth fleep 5 or, by its a&ivity ( fo 
quickvthat the Nerves cannot be obftru^ed by the Vapors, and 
a paffage is conftantly open'd for the Spirits to iflue into the Or- 
gans) produceth continual Wakes. 
If it be demanded, how Mufek becomes a remedy ,and inciteth 
the Patient to dance? 't's here anfwered. That Sound having a 
great influence upon the Actions of Man ; and being a motion of 
the Air, the Air mov'd, caufeth a like motion in the next Air, 
and foon^ till the like be produced in the Spirits of the Body., 
to which the Air is impelled. Wherefore fince the commotion 
of the Paflions depends on the Spirits, and the vifcous humour 
of xht Tarantula^ is a capable fubjedi of found, hence Vis (faith 
this Author*) that the Air being mov'd by a Mufical Air, fuitable 
to the Patient, the poifon ofthisS/>/Wir and the Spirits of the Man 
are by the fame agitation put into a commotion* whence follows 
a propenfion to dance : And the Nerves being by the fameagita- 
tion vellicated, and the Spirits in the Nerves ftirr'd more vehe- 
mently, and confequently the Mufcles moved^ the whole Body 
cannot but perform that dancing motion. 
If it be asked, how the cure is made by Dancings Theanfwer 
here is, that by that vehement Motion the Bloud^is heated, the 
Pores open'd, the Poifon rarified and difperfed, and by Sweat e- 
je&ed: But that thefe Patients are not cured by Sudorificks ^ she 
reafon thereof is given from the difference between Sweat caufed 
by Dancing^and that which is provoked by Medicines-, lo/afmuch 
as Medicines are not capable fo to ftirr the little part cles, where- 
in the poifon lodges, as Dancing is. 
But if it beinfifted, why all that are thus bitten, are not cura- 
ble by Dancing, fome being known to have Danced 30 or 40, 
years,without being cured ^ Here is no other caufe alledged, but 
that in fome the poifon is pertinacious and unrarifiable. 
Thefe, and the li! e Phaenomena (vid. why feveral Patients 
are cured, and feveral Tarantulas affe&ed by feveral Tunes-, why 
the T arantulas in Apulia only produce thefe effefts ; e£v,) are fully 
^plicated in the Book itfelf, 
II REG- 
