472  Gleanings  from  the  German  Journals,  {^"^sep'.'is^so^''"' 
Turdus  musicus,  Sturnus  vulgaris,  Sylvia  phoenicurus,  Ardea  argentea) ; 
a  green  solution  without  fluorescence  (f.  e.  Corvus  corone)  ;  a  blueish- 
green  solution  with  blood-red  fluorescence  (shells  of  Larus  canus  and 
ridibundus,  Sterna  hirundo  Scolopax,  Haematopus,  Tringa) ;  in  rare 
cases  a  reddish  solution  with  fluorescence.  An  attempt  to  isolate  these 
coloring  substances  yielded  sticky,  dark  green  substances,  but  proved 
that  they  generally  consist  of  a  green  or  blue  and  a  reddish-brown  sub- 
stance.— Ztschr  d,  Allg.  Oest.  Jpoth.^  April  i,  1880,  p.  152,  from  Ber, 
d.  Deutsch.  Chem.  Ges. 
Ostrich  Feathers  are  bleached  by  immersing  into  a  solution  of 
4  to  5  grams  potassium  permanganate  in  i  liter  of  water,  to  which  an 
equally  strong  solution  of  magnesium  sulphate  may  be  added,  heating 
to  not  over  6o°C,,  washing  and  ultimately  immersing  into  sulphuric 
acid  (i  to  2°  Baume),  or  still  better  into  a  solution  of  sodium  bisul- 
phide.— Pharm.  Ztschr.  f.  Russl.^  March  i,  1880,  p.  151,  from 
Polyt.  Noti%bl. 
Cloth,  Linen,  Paper,  Straw,  etc.,  can  be  rendered  fire  proof 
{incombustible)  bv  immersmg  them  into  a  boiling  solution  of  pure 
ammonium  sulphate  8  parts,  ammonium  carbonate  2J  parts,  boracic 
acid  3  parts,  pure  borax  1*7  part  and  starch  2  parts,  in  water  100 
parts — Pharm.  Ztschr.  f.  Russl.^  Feb.  15,  1880,  p.  120. 
As  an  Innocent  but  fully  as  Reliable  Substitute  for  Wicker- 
sheimer's  Poisonous  Preserving  Fluid  Hager  suggests  the  following  : 
R     Salicylic  acid,               .               .               .  20*0 
Boracic  acid,         .              .               .  2>5-o 
Potassium  carbonate,    .               .               .  5  0 
Dissolve  in  hot  water,             .               .  500-0 
Glycerin,       ....  zoco 
Then  add  Oil  cinamon,  oil  cloves,  each  i5'o,  dissolved 
in  alcohol,              .               .               .  500*0 
This  fluid  is  not  poisonous,  and  possesses  the  desirable  property  of 
acting  as  an  antiseptic,  and  also  as  a  preventive  and  exterminator  of 
moths  and  vermin,  and  is  possessed  of  a  pleasant  odor.  The  boro- 
salicylate  may  be  used  in  connection  with  other  solvents  if  desired. — 
Pharm.  Ztg..^  March  24,  p.  178. 
Cantharidal  Collodion. —Lallier  moistens  100  0  freshly  powdered 
cantharides  with  i  part  of  a  mixture  of  150*0  purified  ether  and  20"0 
acetic  acid,  packs  into  a  percolator,  allows  to  macerate  for  12  hours, 
slowly  exhausts  with  the  balance  of  the  mixture,  allows  the  resulting 
tincture  to  evaporate  spontaneously  in  the  open  air  at  an  ordinary  tempera- 
ture until  it  has  lost  -^-^  of  its  weight,  then  dissolves  gun-cotton  in  it  in 
