PHENOLOGY. /?£>, 
t 
This term (whioh is contracted from 
phenomenology ) is defined as, "The 3cionce of the 
relations betweon climate and periodic bilogical 
phenomena, as the migration and breeding of birds, 
the flowering and fruiting of plants, etc." The 
term makes a convenient single word reference for 
our records of the flowering and fruiting times of 
the different trees and it is proposed to use it 
as a heading in our files, 
2* The Department has been accumulating 
phonological data for a number of years and a 
separate register has been kept in which were record¬ 
ed the notes on flowering and fruiting that were 
given in forest officers 1 diaries, A considerably 
larger amount of information has been found on the 
field labels accompanying herbarium collections. 
The time of flowering and fruiting of particular 
trees may have considerable significance in Sylvi¬ 
culture and we have been trying to gather such 
information for inclusion in descriptions of the 
different commercial timber/f trees, 
3, Table No.l has been prepared to include 
all of our authentic records of the time of flower¬ 
ing and fruiting of our timber trees in different 
years. The trees included in the timber roll are 
X 
the principal ones considered, Mengkulang has 
been added because it .is a tree whioh produces a 
timber of useful quality and ’ in soae. gsaiitity, and 
Tualang, because it is so conspicuous a feature 
of the landscape, in many places i and is a tree of 
some popular interest, by reason of its imposing appearance 
and large size. Much 4L the largest number of entries 
in the liable have been take::, from herbarium collections 
