Am.  Jour.  Pharm.  \ 
March,  1905.  / 
Progress  in  Pharmacy . 
137 
Menthol,  10. ;  formaldehyde,  5-;  oil  of  geranium,  0  5  ;  mix  and 
use  in  a  smelling  bottle.    (Phar.  Jour.,  1904,  page  967.) 
Jab  or  audi  Leaves  of  Commerce. — E.  M.  Holmes  [Phar.  Jour.,  1904, 
page  891)  says  that  for  some  years  there  has  been  great  difficulty 
in  obtaining  the  jaborandi  leaves  official  in  the  British  Phar- 
macopoeia. 
During  this  period  a  considerable  quantity  of  the  Rio  and  Maran- 
ham  jaborandis  have  been  on  the  market.  The  latter,  P.  microphyl- 
lus,  usually  comes  into  the  market  in  good  condition,  and  yiel  1  , 
according  to  Paul  and  Cownley,  as  much  as  0  84  per  cent,  of  a 
crystalline  nitrate  of  pilocarpine  that,  like  the  alkaloid  obtained  from 
P.  jaborandi,  appears  to  be  a  mixture  of  two  nitrates — one,  isopilo- 
carpine,  having  a  melting  point  of  1 59°,  and  the  other,  pilocarpine, 
melting  at  1460. 
Rio  jaborandi  (P.  pennatifolius)  varies  much  in  appearance,  and 
does  not  yield  more  than  half  the  amount  of  crystalline  alkaloid 
usually  obtained  from  the  Pernambuco  or  Maranham  varieties. 
Kryptol. — This  is  a  grayish-black,  granular  substance,  having  con- 
siderable electrical  resistance.  It  is  composed  of  clay,  carborundum 
and  graphite,  and  is  said  to  have  a  melting  point  that  is  upwards  of 
3,000°  C.  It  is  being  used  to  economically  convert  electrical  energy 
into  heat.    (Suddeut.  Apoth.  Zeit.,  1904,  p.  790.) 
Menthyl  Camphorate, — The  camphoric  acid  ester  of  menthol ;  this 
is  a  white  substance,  insoluble  in  water  or  chloroform,  but  soluble  in 
alcohol,  ether  and  the  fatty  oils.  It  melts  at  86°  C,  and  is  decom- 
posed by  boiling  water.  {Zeitschr.  d.  Oest.  Apoth.  Ver.,  1904, 
p.  1518.) 
Salibromin. — This  has  been  recommended  as  an  antiseptic  remedy 
for  rheumatism  and  as  a  febrifuge.  It  is  insoluble  in  water  and  in 
acids.  Given  in  doses  of  0-50  and  as  much  as  5-00  in  twenty-four 
hours.    [Phar.  Jour.,  1904,  p.  852.) 
Trigemin,  a  mixture  of  butyl  chloral  and  pyramidon,  occurs  in 
long  acicular  crystals,  melting  at  85  0  C,  and  freely  soluble  in  water. 
Used  as  an  analgesic.  (Zeitschr.  d.  Allgemein.  Oest.  Apoth.  Ver.} 
1904,  p.  1 5 18.) 
Zinc  Borate,  or  Oxyborate. — This  is  a  powder  combining  the  anti- 
septic properties  of  boric  acid  with  the  drying  and  absorbent  prop- 
erties of  oxide  of  zinc,  and  may  be  made  by  the  following  formula : 
Dissolve  500  grammes  of  zinc  sulphate  in  from  5  to  10  liters  of 
