176 



OLEA LAURIFOLIA. Ironwood. 



No. 16 December, 1887 ; girth 31 i". 



January, 1890 ; 32 ; growth ^in. in 25 months. 

 26 December, 1887 ; 17. 



January, 1890 ; 18 lin. in 25 



32 December, 1887 ; 36 1. 



January, 1890 ; 38 ; 2in. in 25 

 34 December, 1887 ; 23. 



January, 1890 ; 24^ ; l T yn. in 25 

 Aggregrate growth, 3'05in. in 100 months. 

 Mean yearly increase in girth, 0-37in. 



APODYTES DIMIDIATA. White Pear. 



No. 5 March, 1883 ; girth 29 in. 



January, 1890 ; 31 ; growth 2^in. in 82 months. 

 Mean yearly increase in girth, 0'37in. 



ILEX CAPENSIS. Wittehout. 



No. 17 December, 1887 ; girth 29 in. 



January, 1890 ; ,, 31| ; growth 2|in. in 25 months. 

 Mean yearly increase in girth, l'32in. 



MEASUREMENTS TAKEN IN NATAL PLANTATIONS. 



By the courtesy of Mr. Dering Stainbank, I was enabled to take the following 

 measurements of the average growth of some thousands of indigenous trees that have 

 been planted on his estate at Bellair. The soil is sandy, not rich, 



PODOCARPUS THUNBERGII. Upright Yellowwood. 



Sample Plot No. 1. Planted in 1876 with seedlings raised from seed sown in 1875- 



Mean yearly increase in girth, 0'87 

 Sample Plot No. 2 Planted in December, 1875. 



No. 1 girth 15^ in. ; height 15 feet. 



2 10i 10 



3fti 1 1 



>J 2 - 11 



4 9 12 



5 j> Ii4 > ^4 



6 12| 15 

 Average 11 '25 12'7 



Mean yearly increase in girth, 0*80 



Sample Plot No. 3. Containing about 150 trees. Planted in December, 1875. 

 Average girth, lOin. ; height, 1 5 feet. 

 Mean yearly increase in girth, 0'71in. 



