116 



LIMNANTHES DOUGLASII. 



Chap. V. 



sixteen crossed and sixteen self-fertilised plants were measured 

 to the tips of their leaves; the former averaged 7*3 inches, and 

 the self-fertilised 6*07 inches in height, or as 100 to 83. In 

 all the pots, excepting IV., a crossed plant flowered before any 

 one of the self-fertilised plants. The plants, when fully grown, 

 were again measured to the summits of their ripe capsules, with 

 the following result : 



Table LI. 



Limnanthes douglasu. 



The sixteen crossed plants now averaged 17-46, and the 

 fifteen (for one had died) self-fertilised plants 13 85 inches in 

 height, or as 100 to 79. Mr. Galton considers that a higher ratio 

 would be fairer, viz., 100 to 76. He made a graphical representa- 

 tion of the above measurements, and adds the words " very 

 good " to the curvature thus formed. Both lots of plants pro- 

 duced an abundance of seed-capsules, and, as far as could t>e 

 judged by the eye, there was no difference in their fertility. 



