88 
Book  Reviews. 
f  Am.  Jour.  Pharm. 
February,  19 17. 
6.  Connecting  tubes.  Drain  tubes  No.  16  (interior  diameter,  4 
Mm.),  closed  at  one  end.  Above  this  end  these  tubes  are  perfo- 
rated with  holes  from  0.5  to  1  Mm.  in  diameter  : 
(a)  Tubes  perforated  for  5  Cm.,  30  Cm.  long;  (b)  Tubes  per- 
forated for  10  Cm.,  30  Cm.  long;  (c)  Tubes  perforated  for  15  Cm., 
40  Cm.  long;  (d)  Tubes  perforated  for  20  Cm.,  40  Cm.  long. 
BOOK  REVIEWS. 
Manual  of  Chemistry,  by  W.  Simon,  Ph.D.,  M.D.,  Late  Pro- 
fessor of  Chemistry  in  the  College  of  Physicians  and  Surgeons,  and 
in  the  Baltimore  College  of  Dental  Surgery;  and  Daniel  Base,  Ph.D., 
Professor  of  Chemistry  in  the  Maryland  College  of  Pharmacy. 
Eleventh  Edition.  Cloth,  648  pages ;  price  $3.50.  Lea  &  Febiger, 
Philadelphia,  Publishers. 
This  textbook  has  reached  its  eleventh  edition,  which  is  con- 
clusive evidence  of  its  merits.  The  revision  was  probably  made 
necessary  by  the  advent  of  a  new  pharmacopoeia,  but  the  author 
(Dr.  Base)  has  taken  advantage  of  the  occasion  to  recast  a  number 
of  sections,  to  introduce  new  matter,  and  to  delete  some  which  is 
no  longer  deemed  necessary  in  a  book  on  chemistry,  intended  for 
medical  and  for  pharmaceutical  students.  The  book  is  primarily 
a  textbook — a  teaching  book — and  only  secondarily  a  reference  book. 
This  accounts  for  the  arrangement,  and  for  the  divisions,  Chemical 
Physics,  General  Chemistry,  Metals  and  their  Combination,  and 
Analytical,  and  Organic  Chemistry.  The  division  dealing  with  the 
metals  and  their  compounds,  is  particularly  valuable,  and  includes 
besides  the  descriptive  chemistry,  a  very  serviceable  compilation  of 
tests.  That  phase  of  chemistry  which  may  be  spoken  of  as  the 
philosophical,  is  dealt  with  under  the  heading  General  Chemistry, 
and  in  connection  with  the  non-metallic  elements. 
The  colored  plates,  on  which  are  reproduced  the  colors  of  the 
more  important  precipitates  in  qualitative  analysis — plates  which 
have  been  a  conspicuous  feature  of  this  textbook,  have  been  re- 
tained in  this  revision. 
The  paper,  type,  and  binding  are  excellent.  All  in  all,  the 
eleventh  edition  of  the  "  Manual  of  Chemistry "  is  a  worthy  suc- 
cessor to  the  editions  which  have  preceded  it,  and  which  have  found 
