fages-between the medxillar Filaments be open'd^or iliut^and that 
more or lefs^or laftly^whether it bcjthat the Spirits are varioufly 
difpofed, whilft the MedulU of the Brain remains in the fame 
date ? 7. Difcourfeth of Sleep and lVaJ{ji2g ^ where he very cu- 
rioufly obferveth^^yfr/^^How far there is in Sleep a Ceflation of 
Senfe and Motion ^ and how Night-walkings and Rejpiratisn ^(tvjo 
very flron^^ Motions) are performed in ^qci^: Secondly^ What is 
the immediate caufe of that Ceflation, viz^ a fcanty and alter*d 
iaflux of (he Spirits into the ©rgans of outward Senfe. 8. Afcri- 
beth the exaft knowledge cf thu MeduLla Spinalis to that excel- 
kot E^gljJhV\\Y^\i\2v\ and Anatomift Dr. IVillis. 9. Explains the 
order in which the feverai Combinations of the Ntrves do pro- 
ceed, out of the Medullar Ma(sof the Brain 9 into and through 
the whole Body. lO.Concludeth the whole with an Explication 
of the JffeiJions and Dijeajes of the Brain 5 and tti^ws^firji^ How 
the various Head-nches are caufed by the various qualities of the 
parts that compofc the Bloud, which being either ^///^i^, fulphu' 
reousjalin.^ ^tqueoiu^ or terrejirial , do accordingly caufe lacera- 
ting^ pricking, vellicating, or heavy pains : Secondly^, How the 
D/opjyoi the Brain is caufed by the copious ferofities gather d 
between the Membrans of it. Thirdly^ How VlcersyChJiruSionSy 
■md lnfismmdiioHs are produced, hourtkly.HovJ thofe many Per: 
inrbatians and Symptoms are occafioned in the Brain, TLSSadnefsj 
FedrySleepinefjy Midnefs^ Forgetft^inefs Epilepfy*8, Apoplexy's, 
a!?:iong which twolaft he finds this difference y that an Epilepjy is 
not neccirariiy preceeded by any Obftiuftion^ an irritation and 
an ofFenfive afflux to the Senfible parts, being able to produce it 
alone^whereas an Apoplexy never comes without an Obftru&ion 
of the Spirits^ Fifthly^How Vdlfys are caufed^^/ia.by an influx of 
impure Spirits from the Origine of the Nerves into the begin- 
nings of the fame» Sixthly How Overmuch Watching h occafi- 
oned , namely by over- hot Spirits^ as an Vn-natural Sleep is 
produced by thick, torpid and cold vapors J intermingled with 
the Spirits, Errata^ 
In Numb.<55.p.20i4,/.i7<.«le/.firft,4wi read,wctQ ftarted. Befides^the Reader is de/tred, 
not to be offende^d at the Over fight of the Printer , who in this fame TraB dfN. 5$ , when he 
Jkmld have unmbred page 2107, did print XOO'J 1 whereby fome confuftsn would arifein the 
Index that is to follow , if therein the Publijher did not intend to prevent it in feme meafure by 
quoting as well the l^nmhst of thefe TraBs.M the pa^^ Inthis liutab,6'j.f »20 ^oMijo 
^*/. FareweW. ' X O N D O N, - . 
Frinted for JohnMartynj Fr/^/er /^? the Royal Society^ 
