346  Gleanings  from  the  German  Journals.  {Am  JJuTyy,iSoarm* 
fat-ointments,  with  a  maximum  amount  of  water,  are  called  cream 
ointments,  owing  to  their  appearance.  Ungt.  refrigerans :  An- 
hydrous lanolin,  10 ;  benzoinated  lard,  20;  rose  water,  30.  Uses: 
Same  as  cold  cream.  Ungt.  refrigerans  aquce  calcis :  Anhydrous 
lanolin,  10;  benzoinated  lard,  20;  lime  water,  30.  Uses:  In  burns. 
Ungt.  refrigerans  plumbi  subacetici :  Anhydrous  lanolin,  10;  ben- 
zoinated lard,  20 ;  solution  of  subacetate  of  lead,  30.  Uses  :  Same 
as  Goulard's  cerate.  Ungt.  refrigerans  zinci:  Anhydrous  lanolin, 
10;  benzoinated  zinc  ointment,  20;  rose  water,  30.  Used  in  place 
of  zinc  ointment.  Ungt.  refrigerans  ichthyoli:  Anhydrous  lanolin, 
10;  benzoinated  lard,  20;  distilled  water,  24;  ichthyol,  6. 
Cremor  refrigerans,  Cremor  refrigerans  aquce  calcis  and  Crcmor 
refrigerans  plnmbi  subacetici  differ  from  the  corresponding  ointments 
in  containing  60  parts  of  the  aqueous  liquid  instead  of  30  parts.  It 
is  recommended  to  prepare  all  of  these  ointments  extemporaneously. 
— [Titer ap.  Monatsk.)  Pharm.  Centralhalle,  1890,  303. 
Myrrh. — A  chemical  examination  of  myrrh  proved  it  to  contain 
gum,  resin  and  volatile  oil.  That  portion  soluble  in  water,  but 
insoluble  in  alcohol,  was  found  to  be  a  gum  of  the  carbo-hydrate 
formula  C6H10O5.  The  portion  soluble  in  alcohol  is  a  mixture  of 
several  resins,  the  greater  part  of  which  is  an  indifferent  soft  resin, 
soluble  in  alcohol  and  ether,  of  the  formula  C26H3405,  containing 
three  replaceable  hydroxyl  groups  ;  there  are  also  soluble  in  alcohol 
two  dibasic  acids  of  the  formulas  C13H1608  and  C26H3209.  The 
volatile  oil  is  present  in  larger  quantity  (7-8  per  cent.)  than  has 
been  previously  found  (2-18  per  cent.),  by  far  the  greater  part  con- 
sists of  a  body  of  the  formula  C10HuO  isomeric  with  thymol  and 
carvol,  but  apparently  a  different  substance.  The  formulas  for  the 
part  soluble  in  alcohol  show  a  certain  relationship.  If  the  formula 
C13H1608  be  doubled  there  will  result  the  three  formulas  C26H3405, 
C7(3H3209  and  C26H3201G,  showing  that  the  differences  in  the  resins 
are  due  to  different  stages  of  oxidation.  The  essential  oil,  upon 
exposure,  will  assume  the  consistence  and  other  appearances  of 
myrrh. — Dr.  O.  Kbhler,  Arch,  der  Pharm.,  1890,  29T-313. 
Manganese  preparations  have  recently  been  tried  again  in  the 
treatment  of  chlorosis  and  excellent  results  were  obtained  especially 
with  a  peptonate.  E.  Dieterich,  in  Pharm.  Centralhalle,  1890,  327- 
333,  publishes  the  results  of  his  efforts  in  making  the  so-called 
"  indifferent  manganese  preparations,"  from  which  the  following  are 
taken  : 
