480  Reviews  and  Bibliographical  Notices.  {^'^S^^^^^^^''^- 
Plain  Directions  for  Accidents,  Emergencies  and  Poisons.    121-no,  pp.  126. 
Plain  Directions  for  the  Care  of  the  Sick  and  Recipes  for  Sick  People,    izmo,  pp.  72. 
These  two  pamphlets  were  written  by  a  physician  attached  to  the  Howard  Hos- 
pital and  Infirmary,  Philadelphia,  and  were  originally  distributed  by  this  institution. 
The  edition  before  us  has  been  published  by  the  Mutual  Life  Insurance  Company, 
of  New  York,  for  distribution  to  its  policy-holders. 
A  Report  on  the  Hygiene  of  the  United  States  Army,\^\\\\  Descriptions  of  Military 
Posts.    Washington:  Government  Printing  Office,  1 875.  4to. 
This  volume  is  Circular  No.  8,  War  Department,  Surgeon-Generars  Office,  which 
is  published,  by  authority  of  the  Secretary  of  War,  for  the  information  of  officers 
ot  the  Army.  The  first  fifty-nine  pages  are  occupied  by  the  report  on  the  hygiene, 
written  by  Assistant-Surgeon  John  S.  Billings,  U.  S,  A.  ;  the  remainder  by  descrip- 
tions of  the  military  posts,  together  with  sick  reports,  meteorological  observations, 
&c.,  during  the  years  1870  to  1874.  It  is  a  most  valuable  addition  to  the  excellent 
"Circulars"  heretofore  issued  by  the  same  office. 
Die  Schule  des  Physikers.  Experimentell  und  mathematisch  durchgefiihrte  Versuche 
als  Leitfaden  bei  den  Arbeiten  im  physikallschen  Laboratorium.  Von  Dr.  Lud- 
wig  Kiilp.  Heidelberg:  Carl  Winter's  Universitats-Buchhandlung.  1874.  8vo, 
pp.  624. 
The  School  of  the  Physicist.  Experimentally  and  mathematically  solved  problems, 
designed  as  a  guide  for  the  labors  in  the  physical  laboratory. 
The  necessity  0*1  practical  instruction  in  the  various  disciplines  is  being  more  and 
more  acknowledged,  and  the  great  usefulness  ol"  the  chemical  laboratories  has  led 
to  a  considerable  increase  in  their  number,  and  the  esta*blishment  of  new  ones  with 
most  institutions  aiming  at  a  higher  instruction.  Among  the  natural  sciences,  the 
discipline  of  physics  is  usually  more  or  less  neglected,  the  instruction  being  mostly 
confined  to  lectures  and  lecture  experiments  5  but  the  need  of  practical  training  is 
certainly  not  less  than  for  chemistry.  The  want  of  suitable  text-books  for  physical 
laboratory  work  has  induced  the  author,  who  has  an  extended  experience  in  this  in- 
struction, to  prepare  the  volume  now  before  us.  One  hundred  and  twenty-six  larger 
problems  are  given  in  the  first  six  parts,  embracing  mechanics,  magnetism,  galvan- 
ism, acoustics,  optics  and  heat,  to  which  a  seventh  part  is  added,  containing  thirty- 
eight  additional  problems.  In  each  case  the  necessary  apparatus  are  mentioned, 
preference  being  given  to  the  simpler  ones,  after  which  the  requisite  experiments  by 
different  methods  are  described  and  the  manner  in  which  correct  quantitative  results 
are  obtained.  An  appendix  of  about  eighty  pages  contains  brief  instructions  relat- 
ing to  the  handling  of  apparatus,  the  performance  of  physical  experiments,  the  gra- 
phic delineation,  calculation  and  correction  of  results,  &c.  The  work  concludes 
with  fourteen  tables,  which  are  valuable  in  the  calculations  or  necessary  in  the  cor- 
rection of  the  results. 
The  work  appears  to  us  to  be  very  well  adapted  not  only  for  the  immediate  pur- 
pose for  which  it  was  written,  but  likewise  to  impart  practical  information  in  many 
cases  of  applied  science,  and  as  such  it  will  be  welcome  to  a  large  circle  of  readers- 
