476 
The  Grain  Weight. 
/Am.  Jotir.  Pharm. 
\     October,  1894. 
On  comparing  the  samples  it  is  seen  that  they  can  be  divided 
into  classes;  one  "red  wheat,"  hard,  compact,  horny,  elongated, 
usually  slender,  and  of  a  red-brown,  often  dark,  nearly  amber  color,* 
the  other,  "white  wheat,"  of  larger  grain,  more  plump,  of  usually 
chalky  (starchy)  fracture  and  of  a  yellowish-white  color. 
Since  I  found  no  record  concerning  the  variety  of  English  wheat 
that  furnished  the  standard  of  the  grain  weight,  it  is  unnecessary 
/or  us  to  separate  the  two  classes,  and  hence,  in  this  part  of  the 
paper  I  shall  average  them  all. 
One  hundred  grains  were  selected  from  each  specimen,  care 
being  taken  to  select  full,  plump,  smooth,  perfect  seeds  of  a  uni- 
form, large  size.  By  comparing  the  wheat  in  the  heads  of  wheat 
from  our  Ohio  wheat  fields,  it  was  shown  that  by  this  method  a 
close  average  could  be  made  of  the  size  of  the  middle  grains  of 
wheat  of  the  head. 
The  result  was  as  follows  : 
TABLE  I. 
ONE  HUNDRED  WHEAT  GRAINS,  OF  UNIFORM  SIZE,  WEIGHED  AS  EOI,I,OWS: 
*  84*190  Grains,  No.  1,  Club,  Bombay,  India. 
*  79*118  "  No.  1,  Bombay,  India. 
*  78*128  "  Choice,  Bombay,  India. 
*  77-890  "  Chili. 
*  77*878  "  New  Zealand,  White. 
77*378  "  England,  Red. 
*  74*430  "  California,  Choice. 
*  72*083  "  New  Choice,  Bombay,  India. 
69 '973  "  New  Zealand,  Red. 
*  67 -836  "  Australia. 
*  66*593  "  Chili. 
*  64*838  "  England,  White. 
*  60*343  "  California,  No.  1. 
*  56*857  "  Kurrachee,  Soft,  White,  India. 
*  56-638  "  Baltic,  Russia. 
55-318  "  Barletta,  South  America. 
54-918  "  Calcutta,  India. 
*  54*890  "  California,  Blue  Stem. 
*54'668  "  Kurrachee,  White,  India. 
54-190  "  Rosario,  Argentine,  1893,  South  America. 
54*164  "  Kurrachee,  Red,  India. 
53*698  "  Patagonia,  South  America. 
53-613  "  Ohio,  Poole,  Winter. 
53-423  "  Azima,  Russia. 
51*983  "  Azima,  Odessa,  Fine. 
5 1  853  "  Baltimore,  Red,  Winter. 
