218  The  Agricultural  J^lducation  E.vhihition,  1904. 
(1)  That  even  in  a mixed  lierd  the  ))ercentage  of  fat  in  tlie  morning’s  milk 
may  average  less  than  the  standard  of  three  per  cent,  for  a whole  week. 
(2)  The  milk  of  individual  cows  is  subject  to  greater  variatiotis  in  quality, 
and  may  often  be  below  the  standard. 
(3)  That  with  the  ordinary  times  of  milking,  the  night’s  milk  is  generally 
richer  in  fat  than  the  morning’s,  the  ()uantity  of  milk  being  greater  in  the 
morning. 
(4)  There  were  many  exceptions  to  this,  and  in  the  case  of  one  herd  the 
morning’s  milk  was  richer  than  the  night’s  for  months  together,  although  the 
night  interval  was  longer  than  the  day. 
A number  of  case.s  illustrative  of  recent  advances  in  Dairy 
Bacteriology  were  exhibited.  One  showed  by  means  of  cultures 
in  milk  the  newly  discovered  associative  action  of  bacteria  in 
souring  milk  ; acid  and  alkali-producing  organisms  growing 
together  were  .shown  to  produce  acid  more  quickly  than  where 
the  acid-])i’oducing  organism  grows  alone,  (dases  of  cultures 
showed  the  mode  of  growth  of  the  “Lange  Wei'’  organisms 
used  for  ripening  Edam  cheese  : the  organisms  concerned  in 
the  manufacture  of  (lamembert  cheese  ; the  lactic  ferments 
in  use  at  the  Midland  Agricultural  and  Dairy  Institute.  Other 
cases  showed  l)y  means  of  j)late  cultures  on  gelatine  the 
sources  of  the  lactic  ferments.  The  greatest  .source  of  infection 
proved  to  be  the  use  of  badly  cleaned  milking  pails,  and  the 
importance  of  cleanliness  in  all  departments  was  further 
demonstrated  by  this  means. 
VI.  Harper-Adams  Agricultural  College. — The  principal 
exhibit  had  reference  to  .seed  testing  and  included  a variety  of 
apparatus  for  germinating,  sifting,  &c.,  all  s])ecially  made  at 
the  College.  Collections  of  flowering  specimens  and  .seedlings 
of  common  weeds  and  ])oisonous  plants  were  also  an  interesting 
feature.  The  ])lants  thus  illustrated  were  thistles,  docks,  woody 
and  deadly  nightshade,  meadow  saffron,  darnel,  spurry,  ribgrass, 
corncockle,  &c.  The  germinating  [)ower  of  white  and  red  clover 
and  timothy  was  illustrated  by  a series  of  photographs,  and  the 
germinating  capacity  of  .samples  of  (diilian,  English,  French, 
Canadian,  and  (Terman  red  clover  was  also  shown  by  a diagram. 
VII.  & VIII.  University  Colleges  of  Reading  and  Wales. — 
These  two  Colleges  both  exhibited  sam[)les  of  soils,  the  former 
from  the  county  of  Dorset  and  the  latter  from  various  counties 
in  Wales.  They  formed  one  of  the  most  interesting  sections 
of  the  Exhibition,  but  they  do  not  n^adily  lend  themselves  to 
brief  de.scription.  Detailed  particulars  of  the  exhibits  were 
printeil  in  the  catalogue  of  the  Show,  |)p.  2(I1-2G4. 
IX.  Agricultural  Education  Association. — This  section  was 
a depot  for  the  distribution  of  the  Reports  and  other  publications 
