^'"■jiD"i885^'^'""}        Practical  Notes  from  Foreign  Journals.  25 
52  pounds  impure  citric  acid  40  pounds  pure  acid  by  means  of  68 J 
pounds  chlorinated  lime  and  32 J  pounds  concentrated  sulphuric  acid. 
35f  pounds  calcined  gypsum  were  obtained  as  a  by-product. 
He  found  the  following  methods  unsatisfactory:  1.  Oft  repeated 
recrystallization.  2.  Carbonate  of  calcium.  3.  Carbonate  of  barium. 
4.  Acetate  of  lead.  5.  Wood  and  animal  charcoal. — Pharm.  Zeit. 
Pussl.,  xxii,  p.  297. 
Musk. — The  German  Consul-General  in  Shanghai  states  that  the 
average  annual  exportation  is  about  3,000  catties  (one  catly  contains 
15  to  20  pods  of  Yunnan  musk,  or  20  to  25  pods  of  Tonquin  musk); 
this  requires  60,000  musk  deer.  He  states  further  that  even  the  best 
pods  do  not  contain  much  more  than  60  per  cent,  of  true  musk,  and 
30  per  cent,  will  about  represent  the  average. — Schweiz.  Woch.,  xxi, 
p.  157. 
Bestucheff^s  Tincture  of  Iron. — 100  parts  of  solution  of  chloride 
of  iron,  400  parts  of  absolute  alcohol,  150  parts  of  sulphuric  ether. — 
Rundschau,  ix,  p.  301. 
Carbolic  Acid. — According  to  Meyke  the  red  color  is  due  to  the 
presence  of  lead ;  he  recommends  to  keep  it  in  tin  containers. — Pharm. 
Zeit.  Pussl.,  xxii,  p.  431. 
Brandy  Flavor. — 4  parts  of  acetic  ether,  50  parts  of  Jamaica  rum, 
100  parts  of  arac,  1,000  parts  of  alcohol  and  1,200  parts  of  water; 
pour  over  10  parts  of  pineapples  and  let  stand.  —  Rundschau,  viii, 
p.  503. 
Meat  Juice. — Sippel  recommends  the  following  as  the  easiest  way  to 
obtain  nearly  all  the  juice: 
Cut  one  pound  of  best  lean  beef  in  slices  about  one-third  of  an 
inch  thick,  and  lay  the  slices  one  alongside  of  the  other  on  a  strip  of 
muslin,  6  inches  wide  and  1  yard  long,  sprinkling  with  fine  salt.  Now 
roll  up  the  whole  strip,  tie  a  string  several  times  around,  and  put  in 
an  ordinary  press.  After  half  an  hour,  about  half  a  pint  of  red,  trans- 
parent juice  will  be  obtained. — Pharm.  Zeit.  Pussl.,  xxii,  p.  600. 
Varnish  for  Sheet-iron  and  Tin  Ware. — 30  parts  of  crystallized 
acetate  of  copper  (verdigris)  is  rubbed  to  a  fine  powder,  and,  spread 
in  a  thin  layer,  left  exposed  in  a  moderately  warm  place  for  several 
days.  The  light-brown  powder  is  ground  with  a  little  oil  of  turpen- 
tine and  mixed  with  100  parts  of  fat  copal  varnish,  previously  heated 
to  120°F.  Let  stand  several  days  in  a  warm  place,  shaking  it  once 
in  a  while ;  finally,  let  dej^osit.    If  applied  in  three  or  four  coats,  a 
