384 
EDITORIAL. 
consists  wholly  of  plates  and  diagrams  of  the  patents.  The  immense  ex- 
tent of  the  Patent  Office  operations  may  be  estimated  approximately 
when  three  such  volumes  are  required  to  give  an  outline  of  the  patents 
issued  in  a  single  year. 
Circular  No.  1.    War  Department,  Surgeon  GeneraVs  Office,  Washing* 
ton,  June  10,  1868. 
Report  on  Epidemic  Cholera  and  Yellow  Fever  in  the  Army  of  the  United 
States  during  the  year  1867.    Washington,  1868 :  pp.  195,  quarto,  in 
paper.    From  Surgeon  General  Barnes. 
This  volume  consists  of  the  report  of  Assistant  Surgeon  J.  J.  Wood- 
ward, U.S.  A  ,to  the  Surgeon  General,  on  these  epidemics  in  the  army,  fol- 
lowed by  statistical  tables  and  extracts  from  the  reports  of  army  officers 
at  the  various  southern  and  south-western  posts  where  these  diseases  pre- 
vailed. The  volume  is  highly  creditable  to  the  Department,  and  will  be 
valued  by  all  who  feel  interested  in  the  study  of  these  destructive  epide- 
mics in  connection  with  military  discipline  and  exposure. 
Lessons  in  Physical  Diagnosis.  By  Alfred  L.  Loomis,  M.  D.,  Professor 
of  the  Institutes  and  Practice  of  Medicine  in  the  medical  department 
of  the  University  of  New  York,  &c.  New  York,  Robert  M.  De  Witt : 
pp.  159,  octavo. 
This  work  has  been  written  "  in  compliance  with  the  request  frequently 
made  of  the  author's  classes  in  physical  diagnosis,  to  furnish  them  with  a 
guide  in  the  practice  of  this  art."  The  author  claims  to  have  been  in- 
fluenced by  a  desire  "to  collect  into  a  plain  and  comprehensive  compend 
the  results  of  the  research  of  many  inquirers,"  rather  than  to  assert  any 
views  of  his  own.  The  book  is  illustrated  with  several  cuts,  and  is  well 
printed  and  bound. 
The  American  Naturalist. — Among  the  many  exchanges  which  come 
to  us  monthly,  none  is  more  welcome  than  the  American  Naturalist,  and 
certainly  none  better  printed.  The  July  number  has  already  come  to 
hand,  and,  being  devoted  to  marine  plants  and  animals,  is  called  the 
"  sea-side  number,"  and  will  be  sought  as  a  companion  by  the  sojourners 
of  Newport  and  Cape  May. 
Lessons  in  Elementary  Chemistry,  inorganic  and  organic.  By  Henry  E. 
Roscoe,  B.A.,  F.R.S.,  Professor  of  Chemistry  in  Owen's  College,  Man- 
chester. New  York,  Wm.  Wood  &  Co.,  publishers,  61  Walker  St. ; 
1868  :  pp.  383,  12mo.  From  the  publishers,  through  Lindsay  &  Bla- 
kiston.    Received  too  late  for  notice  in  this  number.    Price,  $1.50. 
Materia  Medicafor  the  use  of  Students.  By  John  B.  Biddle,  M.D.,  Pro- 
fessor of  Materia  Medica  in  Jefferson  Medical  College,  &c.  Third 
edition,  enlarged,  with  illustrations.  Philadelphia,  Lindsay  &  Blakis- 
ton,  1868 :  pp.  384,  octavo.    From  the  publishers  ;  too  late  for  notice 
[  in  this  number.  $4.00. 
