( ) 
faid before, feems to have been this Perfon’s Cafe, and 
will fufficiently account for the reft of the Symptoms 
above recited. 
His Want of Sleep, and the Inability of Opi- 
um to procure it, might be owing to a Want of Re- 
cruit of Chyle in the Blood : As we fee that thofe 
who live fparingly, fleep very little, and thofe who 
feed plentifully, require by fo much a greater Num- 
ber of Hours to fleep \ and in all chronical Cafes, 
where the Body ceafeth to be nouriftied, the Sleep alfo 
fails, and Opiats have but little Power ; whereas in 
Children, where a great Part of their Food goes to- 
wards both Nourilhment and Acretion, the greater Part 
of their Time is fpent in Sleep. 
It may indeed feem difficult to conceive how a Want 
of Reft fhould enfue fo foon after the Accident. But 
confldering that the Lofs of one Meal in a Day, efpe- 
cially of Supper, to fuch as have been accuftomed to fup, 
has occafioned fewer Hours Reft in the following Night, 
it will follow, that fuch Perfons require at leaft fome 
fmall Recruit once in fix or feven Hours, in order to reft 
their ufual Number of Hours ^ and therefore in our Cafe, 
where all Recruit muft have ceafed foon after the Ac- 
cident, he might be fenfible of the Impairment of 
Reft in fix or feven Hours after it, and thofe about 
him might well obferve the Encreafe of that Symp- 
tom, at leaft in the following Night. ^ 
Another Difficulty arifeth from the Obfervation or 
Swallows and 7"ortoiJ'es<i ^ c. who^ fleep moft in 
Winter, when they eat and drink nothing. In anfwer 
to which, there feems to be no Parity between the na- 
tural Conftitution of their Blood and Humours, and 
that of Men : To thefe, and fuch like Animals, with 
B b b regard 
