A. 
Subsection 
es 
~tieans used to ascertain the medicinal 
i. Chemical examination, Net far to be relied 
= when most fallible, and the sources of this fal~ 
* lacy. 
The utility of chemical analysis assailed by the” 
part bon Mariotie. onan ‘of the exi century and a — 
affected also ‘eae the. aeperinents of the Abbe Faas 
tana on the venom of the viper and gum arabic, 
which yielded the same chemical results. The de-— 
| cope of those views, their inapplicableness to the 
. The present mode of investiga-_ 
J analysis, highly useful, develop-_ 
e pris ciples of plants. ba 4 
“medicines and. conveying 
system by adjuvant vehicles. ee. 
"2, Botanical affinity is that similitede fou ioe 
—: between 5 ee ables that are distinct from ° 
