522 
Book  Reviews. 
Am.  Jour.  Pharm. 
July,  1920. 
mention  is  made,  among  the  poisonous  plants  enumerated,  of  the 
oxaUc  acid  containing  sorrel  and  rhubarb  leaves  which  several  times 
within  the  past  few  years  have  been  alleged  to  have  caused  serious 
toxic  effects  when  eaten. 
In  the  chapter  on  chemical  preservatives  frequent  references  are 
made  to  the  U.  S.  Food  and  Drugs  Act  and  the  decisions  of  the. 
Referee  Board,  and  the  author  criticizes  the  policy  of  inaction  which 
has  hitherto  guided  the  British  authorities  upon  the  subject  and 
makes  a  number  of  suggestions  which  are  of  constructive  value. 
The  book  is  one  which  should  be  in  every  medical  and  chemical 
reference  library  and  will  be  found  useful  as  well  by  health  officials 
who  are  frequently  confronted  with  puzzling  cases  of  alleged  food 
poisoning.  CharlKS  H.  La  Wall. 
A  Critical  Revision  of  thk  Gknus  Eucalyptus.  By  J.  H. 
Maiden,  I.S.O.,  F.R.S.,  F.L.S.  (Government  Botanist  of  New  South 
Wales  and  Director  of  the  Botanic  Gardens,  Sydney).  Vol.  IV. 
Parts  9  and  lo. 
These  two  parts  constitute  Parts  XXXIX  and  XL  of  the  com- 
plete work  of  this  important  classic  monograph.  These  continue 
the  same  style  and  presentation  of  the  subject  matter  as  the 
preceding  parts.  Part  XXXIX  is  the  treatise  on  the  following 
species  of  Eucalyptus:  E.  Torelliana  F.v.M.;  E.  corymhosa  Smith; 
E.  intermedia  R.  T.  Baker;  E.  patellaris  F.v.M.;  E.  celastroides 
Turczaninow ;  E.  gracilis  F.v.M.;  E.  transcontinentalis  Maiden; 
E.  longicornis  F.v.M.;  E.  oleosa  F.v.M.;  E.  Flocktonice  Maiden; 
E.  virgata  Sieber;  E.  oreades  R.  T.  Baker;  E.  obtusiflora  DC;  E. 
fraxinoides  Deane  and  Maiden. 
Part  XL  considers  the  following  species:  E.  terminalis  F.v.M.; 
E,  dichromophloia  F.v.M.;  E.  pyrophora  Benth;  E.  Icsvopinea  R.T. 
Baker;  E.  ligustrina  DC;  E.  striata  Sieber;  E.  grandis  (Hill)  Maiden. 
The  artistic  illustrations  that  have  been  so  characteristic  of  these 
monographs  are  likewise  continued  in  the  parts  now  before  us.  The 
data  associated  with  the  descriptions  are  of  material  commercial 
value,  as  well  as  botanical  monographs  of  the  highest  type. 
G.  M.  B. 
