349 NOTES TO THE 



gar an ounce and a half; the whole to be reduced 

 to a very fine powder. 



If this powder is moistened with water, and 

 stirred, bubbles of carbonic acid gas will be disen- 

 gaged The dose is a drachm and a half, to two 

 drachms, every four hours, in some ounces of pure 

 wattr. 



(155) To imitate the water of Seltzer^ I use the 

 following method. Dissolve six drachms of sul- 

 phuric acid in thirty six ounces of distilled foun- 

 tain water. Mix the two solutions at the instant 

 you would us ' them. 



(156) See § CXXXIII. 



(157) Journal encyclopedique ou universel, an- 

 nee 1781, tome viii, part 11, p. 3 i2. 



( 1 58) Goeze, Versiicheiver JVaturg. etc. p. 373, 



(159) See Block, Traite de la gen, des vers, 

 etc. p. 115. 



(160) See § CXXITI. 



(161 j Instead of the hyacinth confection, the 

 conserve of violets may be employed. 



(163) See § CXXill. 



(163) Trattato delle principali e piu frequente 

 malatta esterne ed interne di Gian-Frederico Her- 

 renschivand, Bassano, 1"^9S, 8"^, torn, ii, p, 166. 



Ilerrenschwand directs his patients, when the 

 stomach is sound, to take two successive mornings, 

 fasting, and two hours after a light supper, two 

 drachms of the male fern root, if they cannot pro- 

 cure the female fern, gathered in the fall, and dri- 

 ed in the shade. This preliminary arrangement 



