THE SICK man's COMPANION. 57 



Made use of many other compounds^ in some 

 of which I have fouud the smallest fraction of 

 some particular ingredient, to produce the most 

 contrary and opposite effects from those intended, 

 and in such cases have been compelled to make 

 a new quantity of the same compound or medi- 

 cine with the precision and exactness of half a 

 grain, or possibly less, before it would produce 

 the desired effect, and in these cases, even when 

 made of the same lot or parcle, of the several in- 

 gredients that the first was made, it has produced 

 with much satisfaction to myself and patient, the 

 intended and desired effect. Many of the com- 

 pounds described and recommended in part first 

 of this work, I have frequently found to operate 

 in a contrary manner, or not at all, when not 

 properly and minutely prepared, and long ex- 

 perience has taught me tlie great propriety of 

 having every composition correctly and minutely 

 prepared. Under these impressions, connected 

 with the experience and practice of upwards of 

 thirty years, I therefore, must again, and proba- 

 bly for the last time in this book, strictly enjoin, 

 and distinctly request, that all those who make 

 use of such medicines as I have recommended in 

 this work, either for themselves or others, mu&t 

 be careful in the selection of each article, watch- 

 ful and careful in the preparation of the same^ 

 and minute, and precise in the combination of ^ 

 such ingredients, to form the different compounds. 



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