64 CHRISTISON—OBSERVATIONS ON 
In the first seven years of the second decade its rate continued 
precisely the same ; but in 1895 its roots were cut round about to 
prepare it fortransplantation. It then almost ceased to grow till 
1899, when it was transplanted to the Arboretum. It now 
girths all but four feet, and promises to do well in its new 
quarters. 
The rates of the two quite young trees, Nos. 19 and I], in 
the second decade, for eight and four years respectively, have 
been ‘96 and 1ol, or about one inch each. The increase in 
No. 19, the one observed for the longest period, has been 
erratic, as proved by the extreme range of ‘45 to 1°20 in eight 
years. 
CyTIsuS LABURNUM. 
ms ANNUAL IXCREMENTS. 
3 — " Ann Girth 
& let’ Total.) "ay, tone 
- ast. 
g |Pecade 1gse. | 1889, | 1890. | 1891, | 1892. | 1893. | 1894. | 1895, | 1896. | 1897. : 
21 75 |1001 @5 | -90| 7041-05 | -75 | 5 | -35 | -85 | 685] -86 | 13-30 
251 55 | 851 -45| -30| -35 | 270| -67 | 11°80 
The results in these young Laburnums, still only about a foot 
in girth, have been ‘86 and ‘67, or an average of about three- 
quarters of an inch. The range in the one longest tested, 
No. 21, has been mederate, *75 to 1'05. 
PYRUS COMMUNIS. 
ANNUAL INCREMENTS. 
. | Girth 
Ann. 
Total. Ke. Se 
Decade. 1999, | 1889. | 1890. | 1891. | 1892. | 1893. | 1894. | 1895. 1896. 1897. 
95 5.90 | 65} "701 25 | -10 § 5:20) °80 | 14°70 
The rate of this young Pear tree, in the West border of the 
Arboretum, was ‘80 for four years, when it was healthy-looking, 
but the increase almost ceased from excessive pruning, which 
threatens the life of the tree. 
