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and tall and dwarf stems. Mendel demonstrated that all these 
differential characters truly segregated after crossing. 
Düring the last few years, many experimenters, in many 
lands, have applied the Mendelian principles to many kinds of 
plants and animals, including Man himself. These experiments 
have yielded a heavy harvest of facts which fully confirm Men- 
del's original conceptions of the nature of heredity. 
In illustration of this, a list of characters in plants, animals 
and Man, which have been found to be subject to MendeFs 
law of segregation, is given below, together with the names of 
the experimenters and observers concerned in their determination. 
This list, though fairly comprehensive, is by no means complete, 
and new characters are being added almost every day.^) 
1) In compiling this list of Mendehan characters no attenipt has 
boen made to detail the germinal factors concerned in the forination of 
the visible characters noted in the list. In certain cases, theret'ore, characters 
included may be merely different reactions of the saine germinal tactors, 
while others may be diie to various conibinations of unit-factors. 
Veihandlungen des naturf. Vereines in r.rüiin. XLIX. \\:m>\. 13 
