[^98] 
fore it feems probable, that the glands in the tunica viOofa 
leparate a fermenting //j^^cr, aiid'tis further obferv'd that 
thofe creatures which have the moft of thele^/««^x, arc 
the moft voracious.Laftly that the nitro-aerial fpirits of the 
nerves an ingredient of thcflomachical ferment, feems 
reafonable from the Arguments of Dr. Mayowy pag. 
ST- H- argues thus: f am vero cum fpiritus animales e par- 
ticulis nitro-aereis conjlanty baud difficile erit intellectu quo* 
modo effeUtt^ prcediHi ab iisdem in ventriculo perficiuntur. 
^luanquam enim fpiritus Nitro-aereus acidus non ejt, ah 
eodemtamen ferrum corroditur^ vitriola perficiantur , [alia 
fixa ad fluorem perducuntur, rerumque compages tanquam 
ab univerfali menjiruo folvuntur. Thele therefore ( Sir) 
are my thoughts concerning digeftion^but here is nothing 
in thefe Dogmatically aflerted. If therefore any Hypothejis 
here may be found erroneous, upon better grounds I fliall 
readily lay it down. 
lam, Sll{, . 
Tour very humble Servant f 
