192 
EDITORIAL. 
yet  so  many  changes  and  improvements  are  found  in  the  recent  German 
edition  that  the  translators,  with  the  warm  approval  of  the  author,  have 
believed  a  new  translation  to  "  be  a  grateful  task,  and  one  sure  to  benefit 
scientific  research  in  this  country." 
In  view  of  the  incipient  state  of  practical  chemistry  in  the  United  btates, 
as  a  branch  of  study,  the  translators  have  prefixed  to  the  work  an  introduc- 
tory chapter  on  the  elements  of  chemical  manipulation,  illustrated  by  figures. 
The  first  part  is  devoted  to  "the  comportment  of  the  metallic  oxides  and 
their  salts  ;"  the  second  to  the  comportment  of  the  metalloids  and  their  more 
important  compounds  ;"  the  third,  a  "  course  of  qualitative  chemical  analy- 
sis," accompanied  by  eleven  valuable  tables,  exhibiting  the  behavior  of  the 
several  classes  of  substances  with  reagents,  and  before  the  blow-pipe,  so  as 
greatly  to  facilitate  instruction  ;  and  the  fourth  part,  "  outlines  of  quantita- 
tive analysis,"  is  put  in  the  form  of  forty-one  practical  examples  in  quan- 
titative analysis,  beginning  with  simple  metallic  salts,  and  successively  pre- 
senting alloys,  minerals,  ashes,  mineral  waters,  concludes  with  a  series  of 
organic  bodies,  and  complex  animal  fluids,  as  milk  and  urine. 
Of  the  translators  it  may  be  said  that  they  are  well  qualified  for  the  task. 
One  of  them,  Dr.  Breed,  was  a  student  of  Leibig,  and  is  favorably  known 
by  his  discovery  of  bismethyle  and  by  his  translation  of  Lowig's  Ele- 
ments of  Organic  Chemistry,  and  in  presenting  this  new  translation  they 
merit  the  thanks  of  every  American  student  of  analytical  chemistry. 
The  publishers  have  done  their  part  well ;  the  sheets  contain  some  typo- 
graphical errors,  the  most  of  which  have  been  pointed  out  in  the  appended 
list  of  corrections,  although  a  few,  as  will  always  be  the  case,  have  passed 
unnoticed — for  instance,  at  page  128,  six  lines  from  the  bottom,  the  word 
"nitrogen"  should  read  "oxygen."  The  Tables  are  secured  in  with 
muslin  strips,  and  are  printed  on  thicker  paper  than  the  text. 
Table  of  Urinary  Deposits,  with  their  Microscopical  and  Chemical  Tests,  for 
Clinical  Examinations.    By  John  King,  M.D.,  Cincinnati,  Ohio. 
This  chart  is  a  compilation  of  the  more  important  characters  of  healthy 
and  pathological  urine,  with  the  appearances  exhibited  under  the  micro- 
scope of  the  several  normal  and  abnormal  constituents,  illustrated  by  well 
executed  wood  cuts  ;  and  the  usual  chemical  tests  following.  Succinct 
notices  of  the  diseases  indicated  by  the  inordinate  secretion  of  normal  con- 
stituents, as  well  as  those  giving  rise  to  the  abnormal  ingredients,  are  ap- 
pended with  their  remedies.  A  table  of  the  specific  gravities  of  urine,  in 
reference  to  the  proportion  of  fluids  and  solids,  and  another  of  the  color  of 
different  varieties  of  urine  are  given. 
The  whole  appears  to  be  carefully  arranged,  and  will  prove  useful  as  a 
reference  to  the  practitioner  to  refresh  his  memory,  and  materially  aid  the 
student  in  getting  a  clear  idea  of  the  subject. 
