The prize for the year 1923 was awarded to: 
PreGL, Fritz, professor at the University of Graz, 
born 1869, died 13th December, 1930; “for the 
method of microanalysis of organic substances 
discovered by him.” 
The prize for the year 1924 was allocated in 1925 to 
the special fund for this group of prizes. 
The prize for the year 1925 was awarded in 1926 to: 
ZSIGMONDY, RICHARD, professor of inorganic chem- 
istry and the chemistry of colloids at the Uni- 
versity of Gottingen, born 1865, died 24th Sep- 
tember, 1929; “for his exposition of the heteroge- 
neous natur of colloid solutions, and for the meth- 
ods he used in that connection, which have become 
a determining factor in the modern chemistry of 
colloids.” 
The prize for the year 1926 was awarded to: 
SVEDBERG, THE, professor of physical chemistry at 
the University of Upsala, born 1884; “for his 
works on disperse systems.” 
The prize for the year 1927 was awarded in 1928 to: 
WieLanD, HEINRICH, professor of chemistry at the 
University of Munich, born 1877; “for his in- 
vestigations into the constitution of the bile acids 
and kindred substances.” 
The prize for the year 1928 was awarded to: 
WiINDAUs, ApoLF, professor of chemistry at he 
University of Gottingen, born 1876; “for his 
sevvices in the investigation of the constitution of 
the sterols and their connection with the vitamins.” 
The prize for the year 1029 was divided equally be- 
tween: 
HARDEN, ARTHUR, professor of bio-chemistry at the 
University of London, born 1865; “for his ve-