EDITORIAL. 
479 
from  medicines,  and  above  all  the  long  and  close  study  which  has  been 
accorded  to  it  by  the  author,  strongly  recommend  the  work  to  the  attention 
of  students  and  practitioners  of  medicine. 
Catalogue  of  the  Phcenogamous  and  Filicoid  Plants  of  New  Castle  County, 
Delaware;  arranged  according  to  the  natural  system  as  recently  revised 
by  Prof.  A.  Gray  and  others,  with  the  synonyms  of  modern  authors- 
By  Edward  Tatnall.    Published  by  the  Wilmington  Institute.    Sold  by 
J.  T.  Heald,  Wilmington,  Del.    1860,  pp.  108,  octa,o. 
This  is  an  important  contribution  to  the  local  botanical  literature  of  our 
country.    Although  embracing  but  512  square  miles,  that  county  contains 
over  1100  recognized  species  and  marked  varieties,  nearly  one  half  as 
many  as  are  included  in  the  entire  flora  of  the  Northern  States.    Dr.  Dar- 
lington has  expressed  his  belief  that  New  Castle  County  possesses  a  richer 
flora  than  any  other  county  in  the  Union.    Its  proximity  to  Philadelphia 
renders  this  good  news  to  our  young  botanists,  who  have  cause  to  thank 
Mr.  Tatnall  for  his  able  contribution. 
The  Anatomy  and  Physiology  of  the  Placenta, — the  connection  of  the  nervous 
centres  of  animal  and  organic  life.  By  John  O'Rielly,  M.  D.,  Licentiate 
of  the  Royal  College  of  Surgeons,  Ireland ;  Fellow  of  the  New  York 
Academy  of  Medicine,  &c,  &c.  New  York,  Hall,  Clayton  &  Co.,  I860, 
pp.  Ill,  octavo. 
The  reception  of  this  book  from  the  author  is  acknowledged. 
The  Columbus  Review  of  Medicine  and  Surgery.    M.  S.  McMillen,  M.  D. 
Editor.    Vol.  1,  No.  1,  August,  1860,  Columbus,  Ohio,  pp  108. 
We  acknowledge  the  receipt  of  this  new  Medical  Journal,  and  have 
placed  it  on  our  exchange  list. 
American  Medical  Times,  being  a  weekly  series  of  the  New  York  Journal  of 
Medicine.     New  York,  July  7th,  etc.     Bailliere  Brothers,  pp.  18 
Royal  octavo. 
In  this  new  form,  the  New  York  Journal  of  Medicine  presents  a  business- 
like aspect,  and  looks  more  like  an  English  weekly  than  any  American 
journal  that  we  remember.    The  offer  of  exchange  is  accepted. 
Georgia  Medical  aud  Surgical  Encyclopedia,  a  monthly  Journal,  edited 
by  Horatio  N.  Hollifield,  M.  D.,  and  Tom.  W.  Newsome,  M,  D.,  Sanders- 
vine,  Georgia.   Vol.  1,  Nos.  1  and  2.    The  offer  of  exchange  is  accepted. 
