APPENDIX 



493 



NOTE 25. (See Chapter X. p. 236.) 



Observations on the Weight of Resting Seeds of Pisum, Phaseolus, 

 Faba and Ricinus, showing that the Increase in Weight during 

 TWO Years recorded by Van Tieghem and Bonnier is included 

 IN the Range of the Normal Hygroscopic Variation. 



/^oie.—The Albany Pea has wrinkled seeds, whilst the seeds of the Sunrise Pea are 



"^^AU^he above seeds were kept in a cool, rather damp room until the end of July 19 10, 

 when they were transferred to a warm, dry room. They were all eight to ten months old. 



B. Ricinus communis. 



Number of seeds 152, with caruncle 

 retained, six months old. They were 

 kept in a cool, rather damp room for 

 the first two weeks, and afterwards in a 

 warm, dry room. 



July 14, 1908, . 



August I, 1 90S, . 

 September 2, 1909 

 June 18, 1910 . 

 April 8, 1911, . 

 August S> >> 



385-9 grains 



3«7-i „ 



385-3 >. 



382-7 „ 



382-8 ,, 



383-4 ,, 



384-0 ,, 



Number of seeds 39, with caruncle re- 

 moved, twelve months old. They were 

 kept in a cool, rather damp room for the 

 first three weeks, and afterwards in a 

 warm, dry room. 



The hygroscopic range or variation m The hygroscopic range or variation in 

 weight amounted to i -1 per cent. weight amounted to i -5 per cent. 



