AlAugusrt)i899!'m'}    Recent  Literature  Relating  to  Pharmacy.  397 
can  only  be  distinguished  from  pure  wax  by  applying  other  than 
the  above  tests. 
The  following  table  shows  the  results  of  twelve  examinations : 
Adulterant. 
f  Paraffin, 
1  Stearic  Acid 
Paraffin,  \ 
Stearic  Acid  J 
f     Paraffin,  \ 
1  Stearic  Acid  ) 
Specific 
Gravity. 
.      (i)  '9560 
Melting- 
Point. 
63°  c. 
Acid  No. 
19*08 
Ether  No, 
72-13 
,  (2)  -9200 
65°  c. 
7"34 
17-48 
(3)  '9535 
(4)  *952° 
63°  c. 
04 
22-15 
2 1 '45 
78-82 
77'oS 
(JO        v_ . 
5 '3° 
27*63 
(6)  ~945o 
63-5°  c. 
19-40 
78-99 
(7)  -9540 
630  c. 
20*16 
87-14 
(8)  -9560 
(9)  *96oo 
(ro)  '9558 
(11)  -9620 
62-  5°  c. 
64°  c. 
63-  5°  c. 
64°  c. 
21-30 
19-  41 
20-  49 
19-14 
83-53 
76-  95 
83-96 
77-  91 
(12)  -9400 
68°  C. 
14-38 
66-71 
Average,  '9479 
64-08°  C. 
17-47 
69-02 
Tallow, 
Carnauba  Wax 
Stearic  Acid 
Paraffin,  "I 
Stearic  Acid  J 
Oil  Sassafras. — On  account  of  the  large  consumption  of  this  oil 
by  soap  manufacturers,  it  is  handled  extensively  by  the  wholesaler. 
Oil  which  has  a  gravity  of  less  than  1-07  is  looked  upon  with  sus- 
picion, as  we  have  reason  to  believe  that  some  of  the  safrol  is  ex- 
tracted before  the  oil  is  put  on  the  market.  But  one  lot  of  oil  has 
come  under  our  notice  during  the  past  year  that  did  not  have  the 
desired  gravity.  This  was  a  lot  aggregating  about  400  pounds,  and 
had  an  average  gravity  of  1-0573. 
RECENT  LITERATURE  RELATING  TO  PHARMACY. 
NEW  FALSE  CINCHONAS. 
C.  Hartwich  elaborately  describes  [Arch,  der  Pharm.}  1898,  641) 
four  barks  recently  placed  on  the  market  as  cinchona. 
The  first,  designated  as  South  American  "  pseudo-china,"  was 
found  identical  with  "  china  bicolorata,"  first  noticed  by  Brown  in 
J793<  The  writer  traced  its  source  to  the  genus  Antirrhcea,  N.  O. 
Rubiacese,  and  it  is  apparently  from  the  species  aristata.  This  diag- 
nosis is  based  on  the  presence  of  "  stabzellen,"  and  of  silica  crys- 
tals in  the  cells  of  the  medullary  rays,  as  well  as  the  thickened  cell 
