The Segregations of Polled Races in Amer 
Itivated abundantly,'" and 5. chi- 
ncnsis L. to occur in Cochin-China in two varieties. S. pekitien- 
sis Lour, was introduced to France from China in 1837."^ jhis 
plant, says Livingston,"-^ is more extensively used by all classes 
of the Chinese than any other,— perhaps than all the others 
together. It is carried about the public streets for sale, boiled, 
in which state its smell is extremely offensive to Europeans. It 
is recorded as in the United States by Burr"^ in 1863. In Portu- 
gal its seeds were sown by Loureiro on his return from Cochin- 
China in the eighteenth century.'" 
THE SEGREGATIONS OF POLLED RACES IN 
AMERICA. 
nterestmg to mvestigate 
(^OMING to America itself 
the tendency toward the throwing off the horns among"the 
native cattle, as developed by the environment of so decidedly 
different characters from that the species was formerly accus- ' 
tomed to. 
passage quoted from Major Hamilt( 
South Ameri 
Smith, allusion was made to the occurrence of polled cattle i 
S{)ain ; and on the supposition that they may haN'e been transported 
thence to form the polled breed of Assumption in Paraguay. 
Darwin seems to have disregarded this view ; for his opinion is 
that they " appeared suddenly from what we call spontaneous 
variation," this being the only instance in which the origin and 
formation of a polled race were fully known.' 
