THE GIRTH-INCKEASE OF DECIDUOUS TREES. 45 
A companion of the last, and not 2 inch larger in girth, 
No. 74 was transplanted at the same time, but with a better fate. 
It grew at the same rate as No. 71 in the first four years, but in 
the next five got ahead of it, the respective rates being 30} and 
37%. After removal to its present open grassy situation near the 
old walnut in the Arboretum, its rate for four years was only 
about 7 mil., the decline in the first year being extreme—from 
394 to 3%. In 1890 the rate jumped to 223, and in the six years 
1900-1905 averaged 30, but was slightly less—28—in 1906. That 
this rate did not equal the rate before transplantation may be 
due to the clearing of the dense plantation in which the tree was 
growing at first, and to its exposure in its present position. 
ZESCULUS HIPPOCASTANUM.. No. .73: 
Girth, March, 1887=0'173 mil. 
Trd. 
1887-1895 | 1895 1896 | 1897-1901 | 1902-1906 
Total,.. 1854 15} 6} 1294 165 
Average, 204 26 33 
Girthing about 7 inches when first measured, No. 73 increased 
at the rate of 20} for nine years. In the last of these years the 
increase was only 154, due, probably, to pruning of branches and 
roots to prepare for transplantation. This was in 1895, and in 1896 
the increase fell to 64; but next year it rose again to 15}, and 
the career of the tree ever since, in its new situation near the 
ruins of the old walnut, has been prosperons, the rate from 1897 
to 1901 having been 26, and from 1902 to 1906, 33. 
ZESCULUS HIPPOCASTANUM. No. 80. 
Girth, March, 1887=0°187 mil. 
Trd Trd. 
1887-1891 1895-1896 | 1897-1902 1902-1904 | 1906-1906 | 
Total, .. 150 2: 10 123 63} 102} 33 33 «64 11; 22 | 
Average, 30 84 313 204 44 20 | 
