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2. DOSES. 
After each pharmacopceial article (drug, chemical, or prepara- 
tion) which is used or likely to be used internally or hypodermically 
the committee is instructed to state the average approximate (but 
neither a minimum nor a maximum) dose for adults, and, where 
deemed advisable, also for children. The metric system to be used, 
and the approximate equivalent ordinary weights or measures in- 
serted in parentheses. 
It is to be distinctly understood that neither this convention nor 
the committee of revision created by it intends to have these doses 
regarded as obligatory on the physician or as forbidding him to 
exceed them whenever in his judgment this seems advisable. The 
committee is directed to make a distinct declaration to this effect in 
some prominent place in the new pharmacopoeia. 
3. NOMENCLATURE. 
It is recommended that changes in the titles of articles at present 
official be made only for the purpose of insuring greater accuracy or 
safety in dispensing. In the case of newly admitted articles it is 
recommended that such titles be chosen as are in harmony with gen- 
eral usage and convenient for prescribing; but in the case of chem- 
icals of a definite composition a scientific name should be given at 
least as a synonym. 
4. ASSAY PROCESSES. 
The committee is instructed to append assay processes to as many 
of the potent drugs and preparations made therefrom as may be found 
possible, provided that the processes of assay are reasonably simple 
(both as to methods and apparatus required) and lead to fairly uni- 
form results in different hands. As regards the products of such 
assays, tests of identity and purity should be added wherever feasible. 
Physiological tests for determining strength should not be intro- 
duced by the committee. 
5. PURITY AND STRENGTH OF PHARMACOPCEIAL ARTICLES. 
The committee is instructed to revise as carefully as possible the 
limits of purity and strength of the pharmacopceial chemicals and 
preparations for which limiting tests are given. While no concession 
should be made toward a diminution of medicinal value, allowance 
should be made for unavoidable, innocuous impurities or variations 
due to the particular source or mode of preparation, or to the keeping 
qualities of the several articles. In the case of natural products the 
limits of admissible impurities should be placed high enough to ex- 
clude any that would not be accepted by other countries. 
Regarding the strength of diluted acids, tinctures, and galenical 
preparations in general, it is recommended that the committee keep 
