'^^^yTis^sof'"''}  Reviews,  etc.  287 
China,  and  is  known  in  India  2.%  guikarnee.  The  rootlets,  which  are  sold  in  Hong- 
kong at  ^2  per  pound,  are  used  in  preparing  a  bright  red  tincture  with  5  parts  of 
strong  alcohol.  The  tincture  known  in  the  East  as  ringworm  tincture  is  regarded 
as  an  effectual  remedy  against  ringworm  and  other  cutaneous  diseases.  The  author 
isolated  from  the  drug  1-87  per  cent,  of  a  dark  red  resin-like  principle,  rhinacan- 
ihin^  which  is  not  a  glucoside,  is  soluble  in  alcohol  and  ether,  and  dissolves  in  petro- 
leum benzin  and  chloroform  with  a  yellow  color.  It  is  present  in  the  milk  juice  of 
the  bark,  and  represents  the  antiparasitic  action  of  the  drug. 
Sluantitati'V-chemische  Untersuchungen  iXher  die  Zusammenset%.ung  der  Kork-^  Bast-y 
Sclerenchym-  und  Markgeivebe.    Von  Joh.  Koroll.    Dorpat,  1880.    8vo,  pp.  52. 
'Quantitative  Chemical  Examinations  on  the  Composition  of  the  Tissues  of  Cork, 
Liber,  Sclerenchyma  and  Pith. 
The  substances  examined  are  shells  of  hazel  nuts  and  walnuts,  liber  of  the  linden 
and  elm,  root  of  chicory  and  turnip,  pith  of  elder  and  leathery  cork  of  birch. 
A  Catalogue  of  the  Forest  Trees  of  North  America.    By  Chas.  S.  Sargent,  Arnold 
Professor  of  Agriculture  in  Harvard  College.     Washington:  1880.    8vo,  pp.  93. 
This  is  one  of  the  publications  issued  in  reference  to  the  pending  tenth  census  of 
the  United  States,  of  which  this  catalogue  will  form  a  part.  Its  preliminary  publi- 
cation was  made  with  the  view  of  obtaining  reliable  information  from  all  parts  of  the 
country  in  regard  to  geographical  distribulyon,  region,  elevation,  soil,  dimensions, 
local  names,  economic  uses,  products,  etc.,  of  each  species.  It  is  to  be  hoped  that 
botanists,  pharmacists  and  others  interested  in  this  matter  will  aid  the  special  agent 
of  the  tenth  census.  Prof.  Sargent,  so  as  to  make  the  report  as  complete  as  possible. 
Adulteration  of  Food.    By  Albert  R.  Leeds,  Ph.D.,  Professor  of  Chem.istry  in  the 
Stevens  Institute  of  Technology. 
A  reprint  from  the  third  report  of  the  New  Jersey  State  Board  of  Health,  giving 
the  results  of  numerous  analyses,  and  advocating  suitable  legislation,  with  the  view 
of  restraining  the  evil  within  as  narrow  limits  as  possible. 
Chemische  Beitrdge  zur  Pomologie.    Von  Theodor  Pfeil.    Dorpat,  1880.  'Pp.46. 
Chemical  Contributions  to  Pomology. 
A  very  interesting  and  instructive  examination  into  the  proximate  constituents  ot 
the  apple  during  the  period  of  development  and  ripening.  The  weight  of  the  fruit 
increased  from  i-8o  gram  (June  8th)  to  89-10  grams  (Aug.  15th),  during  which 
period  the  weight  of  sugar  increased  from  0-037  to  4-366  grams,  free  (malic)  acid 
from  0-031  to  0-673  gram,  starch  from  o  to  0-201  gram,  etc. 
Premieres  etudes  sur  V Erythroxylon  Coca.  Par  Victor  Trupheme.  Montpellier,  1879. 
8vo,  pp.  53. 
A  very  creditable  monography  on  coca,  giving  the  botanical  history,  its  produc- 
tion, commerce,  general  characters,  chemistry,  physiological  action,  pharmaceutical 
preparations  and  literature. 
