408 FARM ANIMALS 
nary conditions, the lowest bacterial counts are obtained 
in certified dairies by hand milking. 
MILKING Cows WITH MECHANICAL MILKER 
Three decided objections are advanced against the mechanical 
milker—the initial cost, the necessity of skilled operators, and the 
impracticability for use in small herds. A vacuum system, operated 
by power, is fundamentally connected with the appliance. Teat cups 
attached to the teats are caused to give action as pulsators to force 
the milk out of the udder. This pulsator is a clever mechanical adap- 
tation of the principle a calf follows in taking milk from its mother. 
While the problem of machine milking has not been solved in every 
respect, great progress is being made, and in time perfection will be 
as nearly obtained as with the self binder, corn planter or egg 
incubator. 
