174 Second Conference 



4. The disposition as well as position of flowers 



should be noted. 

 Pendulous Maple. 

 Erect Horse-chestnut. 



Staminate pendulous, but pistillate! , 



\ birch. 



erect at first J 



Flowers found on wood of previous year's 

 or on this year's growth? 



5. Then, with regard to fertilisation, is it brought 



about through the agency of- 



Insectst Chestnut, maple, willow. 

 Wind"} Poplar, hazel, fir trees, &c. 



And in the case of wind-fertilized trees, 

 Note- 



(a) absence of showy petals, scent, honey. 



(b) flowers drooping, oftentimes in catkins 



easily swayed by the wind. 



(c) flowers appearing before tJie leaves. 



(d) abundance of dry, powdery pollen, 



easily carried about by the wind. 



And so on indefinitely; and having examined 

 a sufficient number of trees of the same 

 species, we can ascertain whether these 

 characteristics are a permanent feature com- 

 mon to all trees of the same kind, or merely 

 accidental traits of a particular tree. Thus 

 we make 



our observations, 

 our verifications, 

 our deductions, 

 our generalizations. 



