244 TKANSACTIONS AND raOCEEDINGS OF THE [Sess. LXiv. 



Monthly measurements of most of these trees have been 

 made continuously up to the present date. I am thus 

 enabled to compare the growth of sixteen of those trees in 

 these first five years, with their growth in the last nine 

 years. 



As stated in the "Notes" of 1890, the measuring day 

 has always been as nearly as possible on the 12th day of 

 each month. The trees are marked with a lightly painted 

 line, three feet above the ground, which is the measuring- 

 point. The measure used is a steel tape, marked to 

 millimetres ; and the measurements have always been 

 taken with care, to secure as great accuracy as possible. 



The sixteen trees whose measurements are continuous 

 from 12th January 1885 to 12th January 1899, are as 

 follows : — 



Evergreens. — Two Eucalypti (common varieties, but not 

 Uucalyptus globulus, or blue gum) ; now about 18 years old. 

 Two Stone Pines {Pimis innea): about 21 and 23 years old. 

 Two Blackwoods {Acacia mdanoxylon) : now about 19 years 

 old. 



Deciduous Trees. — Two Oaks, from English acorns, but 

 I do not know if Quercufi rohnr or not: about 21 years old. 

 Two Paraisos (Mclia azcclarach): about 18 years old. Two 

 Lombardy Poplars {Populus fastigiata) ; doubtful age, 

 possibly about 22 years. One liobiuia {Ilohinia ^;sewrfo- 

 Acacia) : now about 1 9 years old. I have multiplied the 

 growth of this tree by two, for purposes of comparison. 



Other Di<:ciduous Trees. — One Paraiso; possibly 42 

 years old. One Acer {iJseuclo-platanus) \ about 25 years 

 old perhaps. One Cottonwood {Poimlus angidata) ; about 

 18 years old. 



All these have been growing in enclosed ground, and in 

 undisturbed grass, except the two oaks and the cotton- 

 wood : and the ground round them has been undisturl)ed 

 for the last five or six years. 



A reference to the "Notes" of 1890 will show that of 

 the twenty trees then measured, two Acacias dealbata, one 

 young Piol)inia, and one old Pobinia are not now among the 

 trees measured. The two Dealbatas began to make much 

 dead wood. Their growth during the two years 1890-91 

 amounted to .'>50 millimetres, and during the two years 



