420 
Reviezvs. 
( Am.  Jour.  Pharm 
I     August,  1898. 
Transactions  of  the  Academy  of  Science  of  St.  Louis.  Reprints  on 
the  following  topics  have  been  received  : 
An  Unusual  Phyto-Benzoar  By  Wm.  Trelease.  (See  Amer.  Jour.  Pharm., 
1898,  p.  52.) 
The  Trees  of  St.  Louis,  as  Influenced  by  the  Tornado  0/1896.  By  Hermann 
von  Schrenk.  The  author  enumerates  some  of  the  phenomena  which  followed 
the  period  of  destruction  of  the  tornado  which  swept  over  the  southern  part 
of  St.  Louis  on  May  27,  1896.  "There  was  hardly  a  tree  that  escaped  injury 
of  one  kind  or  another,  with  the  possible  exception  of  several  cypresses,  Taxo- 
dium  distichum,  which,  with  their  conical  forms,  yielded  to  the  force  of  the 
wind.  The  maples  and  elms,  as  stated  by  Norton,  were  in  many  cases  up- 
rooted, and  when  this  took  place  in  the  first  few  moments  of  the  greatest  wind 
velocity  the  trees  were  simply  turned  over,  and,  when  straightened  up  some 
days  after,  resumed  their  former  growth,  and  to-day  these  trees  are  almost  the 
only  normal  trees  in  the  Lafayette  Park  district."  The  destruction  of  foliage 
was  ver}'  marked,  particularly  in  such  trees  as  the  soft  maples  and  sycamores  ; 
several  trees  of  the  honey-locust  retained  most  of  their  leaves.  In  specimens 
of  maple  and  sycamore  there  was  observed  a  double  (abnormal)  ring  in  the 
branches,  but  not  in  the  trunk;  corresponding  to  observations  made  by 
King. 
Ecoeogicae  Peant  Geography  of  Kansas.    By  A.  S.  Hitchcock. 
A  Contribution  to  the  Herpetology  of  Missouri.    By  Julius  Hurter. 
New  or  LitteE  Known  North  American  Bees.    By  Charles  Robertson. 
The  Moeeuscan  Fauna  of  Western  New  York.    By  Frank  Collins 
Baker. 
The  Efficiency  of  Gearing  under  Friction.  By  Calvin  M.  Wood- 
ward. 
A  Method  of  Measuring  the  Pressure  at  any  Point  in  a  Struc- 
ture, Due  to  Wind  Beowing  Against  that  Structure.  By  Francis  E. 
Nipher. 
Contributions  from  the  Gray  Herbarium  of  Harvard  University. 
Reprint  from  Proc.  Acad,  of  Arts  and  Sciences,  May,  1898. 
In  this  reprint  is  contained  a  valuable  contribution,  by  B.  L.  Robinson,  on 
(1)  Revision  of  the  North  American  and  Mexican  species  of  Mimosa,  and  (2) 
Revision  of  the  North  American  species  of  Nepuntia.  The  work  is  wholly 
systematic. 
Basis  of  the  Science  of  Poeiticae  Economy.  By  Ed.  Atkinson.  Re- 
print from  Proc.  Amer.  Acad.  Arts  and  Sci.,  March,  1898. 
A  Table  of  Atomic  Weights.  By  Theodore  William  Richards.  Reprint 
from  Proc.  Amer.  Acad.  Arts  and  Sciences,  May,  1898. 
This  is  a  continuation  of  the  work  on  atomic  weights  from  the  chemical 
laboratory  of  Harvard  College,  and  will  be  noted  more  fully  at  a  later  issue  of 
this  Journae. 
L'Organo-Terapia  neeee  Nefriti  Deeea  Infanzia.  Per  il  Prof.  Luigi 
Concetti.    Estratto  dal  Bull.  R.  Acad.  Med.  di  Roma,  1897-98.    Fasc.  r. 
