ir] 182 
the chemico-medical investigations of the authors 
already mentioned ; and, above all, to study quite 
as closely, the approximating traiis in these werks, — 
to speculation somewhat too refined to be without 
danger of error—to practical directions somewhat 
too highly wrought out of overstrained chemical 
results, to be easily and profitably enlisted in our 
ordinary practice. his, 1 trust. wholesome 
caution, is not intended to convey any detraction 
from the value, either of the investigations or prac- 
tice predicated on them, tothe importance of both — 
of which I have clearly testified in the preceding — 
outlines, Nothing can be more true, than the- 
leading principles of physiognomonical deduction 
made by L.avater, in his treatise on a subject phi- 
losophically handled by none but himself: yet 
nothing can be move absurd, unfounded and fine- 
spun, than some of his decisions in favour, and 
predictions against intellect—founded on a thread _ 
drawn to fragility by too many turns of the wheel, 
and too extended a walk from the spindle on which — 
itis wound. The warpof the chemico-physiologico-— 
medical doctrines of lithia, like the principles of 
physiognomy in Lavater, consists of threads well 
disposed, and of woof fitly adjusted in the loom: but 
the filling has been too fine and too injudiciously 
interwoven, to render the. texture of the fabric 
durable. oe : 
OUTLINES OF ANTILITHIC PRACTICE, 
Dr. Wilson Philip has made the following de- — 
ductions of the effects of diet, in generating lithia. 
*1.— That acid and acescent matters. tend to in- 
crease the deposition of lithic acid from the urine, — 
and to prevent that of the phosphates. ea 
