APPENDIX 



469 



Guilandina 

 bonducella. 



Abrus pre- 

 catorius. 



Abrus pre- 

 catorius. 



Canavalia 

 obtusifolia. 



Canavalia 

 ensiformis 

 (average for 

 three seeds). 

 Hura 

 crepitans. 



Hura 

 crepitans. 



Weight of 

 resting seed. 



30 grains 



Weight of 



the swollen 



seed. 



9 "7 



7 1 grains in 

 3 days 



3 grains in 



21 hours 



27 grains in 



22 hours 



23-3 grains 

 in 26 hours 



45 grains in 

 24 hours 



41 grains in 

 2 days 



41 grains in 

 2 days 



Weight after 



being slowly 



air-dried. 



3 1 grains 

 after drying 

 for 32 days 



I '4 grains 

 after drying 

 for 1 1 days 



I '2 grains 

 after drying 

 for 12 days 



97 grains 

 after drying 

 for 8 days 



2o*5 grains 

 after drying 

 for 1 8 days 



grains 

 after drying 

 for 12 days 



Maximum 



weight after 



being placed 



in water and 



then in 



wet moss. 



91 grains after 



swelling for 



6 days 

 3 grains after 



swelling for 



36 hours 

 2*85 grains 



after 45 



hours 

 22*3 grains 



after 40 



hours 

 46 grains after 



36 to 40 



hours 



Result. 



21 '5 grains 46 grains after 

 after drying 7 days 

 for 1 2 days 



42 grains after 

 9 day- 



Germi- 

 nated 



Germi- 

 nated 



Germi- 

 nated 



Germi- 

 nated 



All ger- 

 minated 



Germi- 

 nated 



Germi- 

 nated 



Total 

 duration 



of 

 experi- 

 ment. 



4 1 days 



20i 



23 



■ With the exception of the last-named plant, which belongs to the Euphorbiace^ and 

 has albuminous seeds, all are leguminous and have exalbuminous seeds. 



The time occupied in attaining the maximum ^weight was the time required for ger- 

 mination, as indicated in the "maximum weight" column. 



These experiments should be of interest to the agriculturist. At 

 the time they were made I was not aware that Professor Ewart had 

 several years' before experimented upon the effect of previous swellings 

 and drying on the germinative capacity of Peas {Pisum sativum). The 

 seeds were well soalced in water and then slowly air-dried. After the 

 first soaking and drying they all germinated. After the second 

 soaking and drying only 40 per cent, germinated when the integuments 

 were entire, but all germinated when the integuments were broken. 

 Seeds subjected to a third soaking and drying failed to germinate 

 whether the coats were entire or broken [Trans. Liverpool Biol. Soc, 

 1894, viii. 207). 



