Am.  Jour.  Pharm.  \ 
May  1,  1872.  / 
Lycopersicum  Esculentum. — Tomato. 
197 
receptacle  smooth.  The  odor  reminds  of  wormwood,  but  is  much 
weaker;  the  taste  is  similar,  though  but  slightly  bitter. 
The  plant  has  probably  tonic  properties,  but  appears  not  to  deserve 
a  place  alongside  the  numerous  bitter  aromatic  tonics  at  the  present 
time  medicinally  employed. 
Pycnanthemum  linifolium,  Pursh.,  Labiatce,  in  some  places  called 
Virginia  thyme,  was  sent  to  me,  a  year  or  two  ago,  as  the  remedy 
successfully  used  by  an  empiric  in  Montgomery  County,  Pa.,  in  cases 
of  hydrophobia.  It  is  hardly  creditable  that  this  plant  could  be  of 
any  value  in  this  fearful  disease,  possessing,  as  it  apparently  does, 
merely  somewhat  stimulating  and  diaphoretic  properties,  like  most 
species  of  this  order,  in  consequence  of  the  small  quantity  of  volatile 
oil  which  it  contains.  It  is  smooth  throughout,  about  1J  to  2  feet 
high,  with  the  linear  and  sessile  leaves  J  to  2  inches  long,  rigid,  entire, 
three-nerved,  often  crowded  in  small  axillary  fascicles ;  the  branches 
are  erect  and  form  a  rather  dense  corymb ;  the  flowers  terminate  the 
branchlets  and  are  crowded  into  hemispherical  heads,  supported  by 
imbricated  ciliate  bracts,  which,  like  the  awl-shaped  calyx  teeth,  are 
rigid  and  sharply  pointed ;  corolla  whitish  or  pinkish,  dotted  on  the 
inside. 
Pycnanthemum  incanum,  Michaux,  mountain  mint  or  wild  basil,  is 
also  called  horsemint  in  some  counties  of  Pennsylvania  where  Monarda 
punctata,  Lin.,  does  not  occur,  in  place  of  which  it  is  used.  The  two 
plants  are*easily  distinguished,  the  bracts  of  the  former  being  linear, 
almost  subulate,  while  those  of  the  monarda  are  leaf-like,  and  of  a 
yellow  and  reddish  color.  The  medicinal  properties  of  both  are  pro- 
bably identical. 
LYCOPERSICUM  ESCULENTUM. — TOMATO. 
By  Thomas  D.  McElhenie. 
Extracted  from  his  Inaugural  Essay. 
My  experiments  have  been  directed  solely  to  the  isolation  of  the 
organic  acids  contained  in  the  fruit,  the  examination  being  undertaken 
at  the  suggestion  of  my  preceptor,  Mr.  T.  A.  Lancaster,  who  had  in  an 
essay,  presented  in  1859,  demonstrated  the  presence  of  tartaric  acid, 
but  expressed  the  opinion  that  citric  acid  would  be  found  to  exist  in 
it  in  larger  proportion,  and  probably  in  sufficient  quantity  to  render 
