GG6 
BRITISH PHARMACEUTICAL CONFERENCE. 
advantages and disadvantages of the addition of spirit to and of the retention of excess 
of oil in contact with them ? Accepted by J. C. Pooley. 
45. To what does Senna owe its active properties, and what is the best solvent of the 
same ? Is the Syrup of Senna P. B. a satisfactory preparation ? What is the compara¬ 
tive medicinal value of senna leaflets and senna-pods ? Accepted by J. A. Knights. 
47. What is the quantity of Tannin in English Galls ( Cynips quercus-petioli) at dif¬ 
ferent stages of their growth? Can they at any period be employed economically as a 
substitute for the Nutgalls of commerce ? Accepted by W. Judd. 
101. Further researches on Hyoscyamine. Accepted by W. A. Tilden. 
102. On the effects of soil and cultivation on the development of the active principles 
of plants. Accepted by T. T. P. B. Warren. 
103. On the electrical resistances of the fixed and volatile oils. Accepted by T. T. P. 
B. Warren. 
105. Emulsions. What are the best methods of forming emulsions from fixed and 
volatile oils, balsams, spermaceti, camphor, myrrh, ammoniac, guaiacum, etc. ? Experi¬ 
mental investigation and compilation of existing knowledge of this subject is undertaken 
by Mr. Proctor, who will be glad to receive communications pointing out cases of diffi¬ 
culty or offering suggestions. 
106. Aconite. Does aconite owe any of its activity to the volatile acrid body said to 
exist in it ? Give a process for the preparation of Aconitine. Accepted by T. B. 
Groves. 
107. Nitrite of Soda. By what modification of the process given in the British Phar¬ 
macopoeia, or by what other process can this salt be successfully and economically pre¬ 
pared ? Accepted by W. D. Howard. 
109. Ammonia. What are the source, annual yield, and characteristics of the so-called 
Volcanic Ammonia ? Accepted by W. D. Howard. 
112. What is the nature of the precipitate formed in Ipecacuanha Wine ; how is it 
affected by the nature of the wine used ? Accepted by G. Johnson. 
113. Researches on Calabar Bean. Continued by J. B. Edwards. 
114. The Iodo-hydrargvride of Potassium is a test for Methylic Alcohol in presence of 
Ethylic Alcohol. Is its action in any way interfered with by the presence of organic 
bodies usually existing in the tinctures of the Pharmacopoeia ? If so, under what cir¬ 
cumstances and precautions can it be applied ? Accepted by J. Tuck. 
116. Phosphoric Acid. Required,—a correct table of the strength of solutions of phos¬ 
phoric acid of various densities. Accepted by J. Watts. 
117. Liquor Ferri Perchloridi. A critical examination of the method of preparation 
adopted in the British Pharmacopoeia, including suggestions for obtaining it, and the 
tincture, of definite composition. Accepted by J. Attfield. 
118. Chemical research on the Podophyllin of the British Pharmacopoeia. Accepted by 
J. B. Barnes. 
119. Report on the processes for the preparation of Glacial Acetic Acid, with sugges¬ 
tions. (See Pharm. Journ. 2nd ser. vol. v. p. 561.) Accepted by W. E. IJeathfield. 
120. Report on the advantages or disadvantages of the employment, in pharmacy, of 
Nitric Acid of sp. gr. 1-5. Accepted by J. Spearing. 
123. Report on the strength of Emplastrum Cantharidis, P. B., with suggestions. 
(See Pharm. Journ. 2nd ser. vol. v. p. 567.) Accepted by A. Allchin. 
124. Resins of Jalap and Scammony. What are the best excipients to use in form¬ 
ing these resins into pills. (See Pharm. Journ. 2nd ser. vol. v. p. 569.) Accepted by T. 
J. Hasselby. 
126. Cinchona. Can a process for Extractmn Cinchonse Flavse Liquidum be devised 
which shall effect the entire exhaustion of the bark of its alkaloids ? (See Pharm. Journ. 
2nd ser. vol. v. p. 569.) Accepted by C. Umney. 
127. Mistura Creasoti. Report on the formula given in the British Pharmacopoeia, 
with suggestions. (See Pharm. Journ. 2nd ser. vol. v. p. 629.) Accepted by J. 
Tuck. 
128. On some of the Tinctures of the British Pharmacopoeia. By J. Adams. 
129. Report on the medicinal use of Artificial Organic Acids and Bases. Accepted y 
C. W. Quin. 
130. Report on the use of butter of Theobroma Cacao in Pharmacy. Accepted by 
. A. Peele and J. Spearing. 
