Am.  Jour.  Pharm.\ 
September,  1902.  j 
Reviezvs, 
455 
methods  of  research  order  out  of  the  chaos,  and  the  result  has  been 
an  interest  in  the  study  of  volatile  oils  that  is  probably  not  super- 
seded by  that  of  any  other  plant  constituent.  The  works  of  Borne- 
mann  on  ethereal  oils,  and  of  Heusler  on  the  terpenes,  paved  the 
way  for  the  student  as  well  as  specialist  to  survey  the  results  of 
numerous  investigators  and  comprehend  their  real  import.  The 
publication  of  the  American  edition  of  Gildemeister  and  Hoffmann's 
work  on  the  ethereal  oils  by  Edward  Kremers,  and  now  the  transla- 
tion of  Heusler's  work  on  the  terpenes,  by  Francis  J.  Pond,  are  par- 
ticularly welcome  additions  to  English  chemical  literature. 
The  following  subjects  are  treated  :  Hemiterpenes;  terpenes  proper, 
C10H16;  hydrocarbons,  C10H18;  hydrocarbons,  C10H20;  oxidized  com- 
pounds related  to  the  terpenes  C10H20,  which  are  further  divided 
according  to  those  which  may  be  regarded  as  derivatives  of  the 
hydrocymenes  as  carvone,  and  those  which  are  analogues  of  pinene, 
camphene  and  fenchene,  as  camphor,  etc. ;  amido-derivatives  of  the 
terpenes ;  amido-derivatives  of  phellandrene ;  olefinic  members  of 
the  terpene  series ;  and  sesquiterpenes  and  polyterpenes. 
The  original  work  of  Heusler  has  been  considerably  enlarged  by 
the  review  of  the  numerous  contributions  on  the  terpenes  which 
have  appeared  since  the  original  German  edition  was  published  in 
J  896. 
Bulletin  of  the  Lloyd  Library  of  Botany,  Pharmacy  and 
Materia  Medica.  By  J.  U.  and  C.  G.  Lloyd.  Pharmacy  Series, 
No.  1.    Cincinnati,  O. :  1902. 
This  is  the  fourth  bulletin  from  the  Lloyd  Library,  and  is  devoted 
to  **  References  to  Capillarity"  to  the  end  of  the  year  1900,  being 
Chapter  VII  of  "  A  Study  in  Pharmacy,"  by  John  Uri  Lloyd.  The 
references  were  collected  and  abstracted  under  the  auspices  of  Pro- 
fessor Lloyd  by  Dr.  Sigmund  Waldbott,  Librarian  of  the  Lloyd 
Library. 
For  more  than  ten  years  Professor  Lloyd  has  been  interested  in 
capillary  phenomena,  particularly  in  what  he  has  termed  the  "  pen- 
dent drop"  that  is  observed  on  shaking  a  mixture  of  chloroform 
and  water.  This  study  led  to  certain  investigations  which  involve 
the  contact  lines  between  liquids.  These  results  will  be  recorded 
now  that  the  references  are  completed.  The  whole  subject  is  one 
fraught  with  interest,  and  physicists  as  well  as  scientists  generally 
will  be  pleased  to  know  that  Professor  Lloyd  has  continued  his 
