tion of one to the other ) that it feems almoft impoflibic 
to determine it. 
From the Premifes it appears, there is fome reafbn to 
induce us to think, that the I^zik^zh frequently convey 
Liquors, which are not white; and that fAy/^ may (not 
improperly) be divided into three forts at leaft, viz. 
Wbitey Pellucid, and Intermediate to thefe s contrary to 
the opinion of thoie Anatomijis, who thought it to be 
alwaies white, as thatword is contrad ilinguiflit to[Pel« 
lucid ]i althoby {Chyle] They underftood (as I like- 
wife do ) the EfFedsof Drink, as well as Meat, Concoded. 
This (Sir!) is the fumm of what I fhall trouble you 
with at prefent, concerning this fubjedlj an account of 
which I here fend you, having been aflurd, itwiilmeet 
with a welcome at your hands, and indeed the whole 
being a Building on your foundation , the right and 
Title of it does of Confequence belong to You : But 
that which gives the greateft encouragement to the 
writing of this Letter, is, that 1 know I write to one ^ 
who has Candor to excule, as well as Judgment to dif- 
cover, my Errors ; to the former of which I mufl ofne- 
ceffiiy be oblig'd, and am not averfe to the latter ; buc 
fhall rather be glad, if I may know your lentiments con- 
cernmg the matter in hand , which way foever they 
fhall tendi whether to a Confirmation^ or a Confutation 
of thi§ Opinion. 
'Jn 
