AMsepti', \m.*'}  Reviews  and  Bibliographical  Notices.  431 
cation,  extend  over  a  period  of  17  months,  from  September,  1870,  to  February, 
1872.  Besides  several  other  papers  and  memoirs  of  general  interest  we  find 
the  following,  which  are  more  particularly  interesting  to  the  readers  of  this 
Journal :  On  the  Amount  of  Carbonic  Acid  Contained  in  the  Air  of  Various 
Places  in  Boston,  by  Mr.  A.  H.  Pearson,  The  experiments  were  made  in  the 
spring  of  1870,  and  showed  in  the  streets  a  percentage  of  carbonic  acid  by  vol- 
ume varying  between  .02586  and  .04999,  while  in  the  rooms  at  the  Massachusetts 
Institute  of  Technology  it  varied  between  .05551  and  .13205,  and  in  the  school- 
rooms  in  that  city  between  .07732  and  .19927. — Notes  on  Labiatae,  by  Prof.  Asa 
Gray,  contains  observations  on  some  new  genera,  and  a  number  of  North  Ame- 
rican species  of  this  order. — Determination  of  a  Collection  of  Plants  made  in 
Oregon  by  Elihu  Hall  during  the  Summer  of  1871,  with  Characters  of  some 
New  Species  and  Various  Notes.  By  Prof.  Asa  Gray.  Among  the  631  spe- 
cies enumerated  in  this  paper,  we  find  quite  a  number  belonging  to  genera  of 
which  one  or  more  species  are  officinal,  and  probably  representing  on  the 
Pacific  coast  the  officinal  species  in  medical  properties.  The  following  eight 
plants  are  the  only  ones  officinal  in  our  Pharmacopoeia:  Cornus  sericea  (varj 
Occident  alts,  T.  and  Gr.) ;  Achillea  millefolium,  L.;  Arctostaphylos  uva-ursi, 
Spreng.  (var.);  Chimaphila  umbellata,  Pursh  ;  Lycopus  virginicus,  L.;  Scutel- 
laria lateriflora,  L.;  Apocynum  androscemifolium,  L.;  and  Juniperus  commu- 
nis, L.  (var.  alpina,  Pari.)  It  would  be  interesting  if  the  medical  and  phar- 
macial  professions  of  the  Pacific  coast  would  bestow  some  attention  on  the 
species  indigenous  there,  belonging  to  the  genera  Asarum,  Asclepias,  Gentiam  } 
Erythrcea,  Artemisia,  Erigeron,  Heuchera,  Rubus  and  others.  A  number  of 
plants  enumerated  here  are  also  contained  in  the  list  of  medicinal  plants  pub- 
lished by  Mr.  Wm.  T.  Wenzell  in  the  last  volume  of  the  Proceedings  of  the 
American  Pharmaceutical  Association  ;  but  on  this  side  of  the  continent  we 
know  very  little,  if  anything,  of  their  medicinal  properties. 
The  Half- Yearly  Abstract  of  the  Medical  Sciences,  being  a  Digest  of  British 
and  Continental  Medicine,  and  of  the  Progress  of  Medicine  and  the  Collateral 
Sciences.  Edited  by  William  Domett  Stone,  M.D.,  F.R.C.S.  Vol.  LV. 
July,  1872.  Philadelphia:  Henry  C.  Lea.  8vo,  pp.  296.  Price,  $1.50,  or 
$2.50  per  annum. 
Braithwaite's  Retrospect  of  Practical  Medicine  and  Surgery.  Part  LXV. 
July.  New  York:  W.  A.  Townsend.  8vo,  pp.  281.  Price,  $1.50,  or  $2.50 
a  year. 
Half  Yearly  Compendium  of  Medical  Science.  Part  X.  July,  1872.  Phila- 
delphia: S.  VV.  Butler,  M.D.    8vo,  pp.  294.    Price,  $2,  or  $3  per  annum. 
The  above  three  semi  annual  publications  contain  selections  and  abridgments 
of  the  most  important  papers,  relating  to  the  medical  sciences,  published  dur- 
ing the  last  six  months. 
Massachusetts  Institute  of  Technology.  Reports  of  the  President,  Secretary 
and  Departments,  1871-72.  Boston  :  Press  of  A.  A.  Kingman,  1872,  8vo,  pp. 
103. 
The  pamphlet  conveys  an  idea  of  the  instruction  and  the  work  accomplished 
