20       Materia  Medica  of  the  Mexican  Pharmacopceia.  {Am'janT,\^aTm' 
thus  formed  is  the  most  soluble,  and  when  shaken  with  water  quickly 
precipitates,  yielding  a  perfectly  clear  nitrate  when  thrown  on  a  dry 
filter.  By  dissolving  the  lime,  the  author  noticed  that  oxide  of  cal- 
cium forms  supersaturated  solutions;  1  liter,  at  a  temperature  near 
O0  C,  contained  2*4  grams  CaO,  at  12°  C,  1*8  grams  CaO. — Pharm. 
Centralhalle,  xxvi,  p.  442. 
MATERIA  MEDICA  OF  THE  NEW  MEXICAN 
PHARMACOPCEIA. 
By  the  Editor. 
Continued  from  page  604  of  the  preceding  volume. 
Jaltomate,  Saracha  Jaltomata,  Schlechtendal,  s.  S.  dentata,  Lin.; 
Solanacese;  in  the  valley  of  Mexico,  &c.  The  leaves  are  tonic  and 
anodyne;  the  fruit  is  edible.  The  leaves  of  several  Peruvian  species 
of  Saracha  are  employed  there  for  anodyne  cataplasms. 
Jamaica,  Hibiscus  SabdariiTa,  Lin. ;  Malvaceae ;  in  Southern  Puebla. 
The  calyx  is  used  in  infusion  as  a  refrigerant;  it  contains  according  to 
Laso  de  la  Vega,  tartaric  acid,  uncrystallizable  sugar,  mucilage,  tannin, 
coloring  matters  and  salts.  * 
Jicama,  Dolichos  tuberosus,  Lamarck,  and  D.  palmatilobus,  Mocifia ; 
Leguminosse;  indigenous  and  cultivated  for  the  alimentary  tubers. 
In  the  state  of  Veracruz  the  alcoholic  tincture  of  the  seeds  is  com- 
monly employed  externally  as  an  antipsoric,  and  the  experiments  of 
Drs.  Casas,  Gonzalez,  and  others  have  verified  the  efficiency  of  this 
remedy  in  itch,  and  its  superiority  over  others. 
Jumete  (Candelilla),  Pedilanthus  pavonis,  Boissier;  Euphorbiacese ; 
in  hot  districts  of  the  state  of  Jalisco.  The  milk  juice  is  violently 
drastic  in  doses  of  2  or  3  drops;  the  root  is  emetic,  and  the  branches 
and  leaves  are  regarded  as  possessing  emmenagogue  and  antisyphilitic 
properties. 
Junco  (Junquillo),  Cereus  flagelliformis,  Miller;  Cactacese;  culti- 
vated. The  infusion  of  the  flowers  is  used  as  a  prophylactic  and  as  a 
remedy  for  eclampsia;  the  juice  is  rubefacient,  and  used  internally  is 
vermifuge;  must  be  used  with  caution. 
Lengua  de  ciervo,  Polypodium  lanceolatum,  Lin.;  Filices;  in 
mountainous  districts.  The  plant  is  pectoral,  and  the  fronds  are  re- 
garded as  possessing  the  mild  astringent  and  demulcent  properties  of 
the  European  hart's  tongue,  Scolopendrium  ofncinarum,  8wartzT 
which  is  also  indigenous  to  Canada  and  the  northern  United  States. 
