9o 
Eleventh  Int.  Phar.  Congress. 
f  Am.  Jour.  Pharm. 
\  February,  1913. 
12.  A  critical  examination  of  the  reliability  of  the  formol-titration 
of  ammonia,  aminic  acids,  and  albuminous  products  in  urine. 
13.  How  can  lgevulose  be  definitely  identified  in  urine?  And  is 
it  due  to  the  alkaline  reaction  of  the  blood? 
14.  In  what  forms  can  uric  acid  (and  uric  salts)  be  precipitated 
from  a  solution? 
15.  The  significance  and  the  method  of  chemical  analysis  of 
sweat. 
16.  The  formation  of  oxalic  acid  in  animal  and  vegetable 
organisms. 
17.  The  toxicity  of  methyl  alcohol. 
18.  The  rational  analysis  (quantitative)  of  the  inorganic  ele- 
ments in  animal  and  vegetable  organs  and  products. 
19.  Critical  and  experimental  discussion  of  the  methods  for  the 
destruction  of  organic  materials  in  toxicological  analysis. 
20.  Comparative  examination  of  the  different  methods  for  esti- 
mating protoxyde  of  potassium  in  manure. 
21.  The  non-nitrogeneous  extractive  materials  of  different  foods. 
22.  Comparative  examination  of  the  different  methods  of  esti- 
mating phosphoric  acid  in  manure. 
23.  Analysis  of  and  requirements  necessary  for  potassium-phos- 
phate as  a  food  for  animals  and  as  a  medicine. 
24.  The  rational  methods  of  sampling  for  the  analysis  of  materials 
in  connection  with  the  accuracy  of  the  analysis. 
25.  The  injurious  forms  of  arsenic  in  wall-paper  and  their 
quantitative  determination. 
26.  The  toxicity  of  nickel-salts  in  connection  with  the  use  of 
nickel  kitchen  utensils. 
27.  The  estimation  of  the  quantity  of  sand  in  foods  for  men  and 
animals. 
SECTION  4:  BOTANY  AND  MATERIA  MEDICA. 
Committee :  Dr.  J.  Dekker,  President,  Dr.  H.  W.  Nijdam,  Secre- 
tary, Prof.  Dr.  C.  van  Wisselingh,  Prof.  Dr.  E.  Verschaffelt,  and 
L.  H.  van  Berk. 
Subjects  Introduced  for  Discussion. 
1,  The  quantitative  estimation  of  quinine  and  other  alkaloids  in 
cinchona-bark. 
2.  What  is  the  significance  of  the  "  pyro-analysis  "  for  the  ex- 
amination of  drugs? 
