Nov, 1S99.] BOTANICAL SOCIETY OF EDINBURGH 



245 



1892-93 to only 167 millimetres. If to this total growth 

 of 517 millimetres for four years be added one-fourth — 

 129 millimetres — the growth for five years would be 646 

 millimetres, or 807 millimetres less than 1453 millimetres, 

 the growth in the five years 1885-90. The two trees 

 were felled in 1894. 



The younger Eobinia grew only 6 millimetres in the 

 three years 1890-92; and showed a decrease of 4 milli- 

 metres in 1893, when it was felled. It was evidently 

 unhealthy. 



The older Eobinia was felled with the rest of the avenue 

 in which it stood. 



I now present Table I., showing the average monthly 

 growth in millimetres of six evergreens for the term of nine 

 years, with the percentages of growth per month, as well as 

 the percentages of monthly growth for the five-year term, 

 and for the whole fourteen-year term, calculated indepen- 

 dently. 



Table I. — Monthly Increase of Evergreens for Nine Years ; and 

 Percentages of Monthly Increase for terms of Five, Nine, and 

 Fourteen Years. 



This Table I. shows that for Gum trees and Blackwoods 

 the month of least growth is June (= English December), 

 and May for Pines. In the years 1885-90, July was the 

 month of least growth for all three species. The Gums 

 grow most in April. In 1885-90, March showed as much 



