died 2nd April, 1928; “in recognition of his ac- 
curate determination of the atomic weight of a large 
number of chemical elements.” 
The prize for the year 1915 was awarded to: 
WILLSTATTER, Richard, professor at the University 
of Munich, born 1872; “for his veseavches inio the 
colouring wmatier of plants, especially chlovophyll.” 
The prize for the year 1916 was allocated in 1917 fo 
the special fund for this group of prizes. 
The prize for the year 1917 was allocated in 1918 io 
the special fund for this group of prizes. 
The prize for the year 1918 was awarded in 1919 to: 
HABER, I'rRiTz, professor, Berlin-Dahlem, born 1868, 
died 1st February, 1934; “for the synthetic pro- 
duction of ammonia from its elements.” 
The prize for the year 1919 was allocated in 1920 lo 
the special fund for this gvoup of prizes. 
The prize for the year 1920 was awarded in I92I fo: 
NERNST, WALTHER, professor, Berlin, born 1864; 
€¢ . - . > . 2) 
in recognition of his work in thevmo-chemistry. 
The prize for the year 1921 was awarded in 1922 to: 
Soppy, FREDERICK, professor, Oxford, born 1877; 
“for his contributions to the chemical knowledge 
of vadio-active substances, and his investigations 
into the origin and nature of isotopes.” 
The prize for the year 1922 was awavded to: 
AstoN, Francis WiLriaM, dr., Cambridge, born 1877; 
“for his discovery of a great number of isotopes 
in several mon-vadioactive elements, by means of 
his mass spectvograph, as well as for his dis- 
covery of the whole number vilie