THE NATURAL HISTORY EXCURSION 145 



and seeds. The printed or type- written programme may 

 be of this kind : 



EXCURSION PROGRAMME. No. I. 



1. Note plants which are apparently dispersed by run- 

 ning water. 



2. Gather specimens of the meadow geranium, with 

 fruits in various stages of development, and especially 

 some which have shot off their seeds. 



3. See what happens when ripe fruits of wood sorrel are 

 gently nipped, and try to discover something about the 

 mode of dispersal of the seeds of this plant. 



4. In walking through the underwood, notice what 

 fruits and seeds cling to your clothes, and bring examples 

 for identification. 



5. Find two or three trees which bear winged fruits. 



6. Find two or three trees or shrubs which bear fruits 

 likely to prove attractive to birds. 



7 Bring seed-vessels of dog-violet, some full and some 

 empty. 



8. Find fruiting heads of goat's beard, and try to make 

 out how the fruits of this plant are dispersed. 



9. Bring ripe pods of willowherb, for observation of the 

 mode of escape of the seeds. 



When the halting- place is reached, there will be a demon- 

 stration, with explanations and discussions. 



Another day the scene may be a north-country moor, 

 and the instructions given out may be somewhat of this 

 kind : 



EXCURSION PROGRAMME. No. II. 



1. Bring specimens of two or three moorland ferns. 



2. Find seedlings of furze, and notice the leaves which 

 they bear. 



3. Bring specimens of two or three moorland plants with 

 rolled leaves, 



K 



