248 TRANSACTIONS AND PROCEEDINGS OF THE [Sess. LXiv, 



Taule III. — Monthly Increase of Three Deciduous Trees for Nine 

 Years ; and Percentages of Increase for Five, Nine, and 

 Fourteen Years. 



Table III. shows the growth of the Paraiso in nine 

 years to have been 186 millimetres, whereas in the five- 

 year period its growth was 191 millimeti'es ; thus its rate- 

 growth in the second period was little more than half its 

 rate-growth in the first period. It is remarkable that in 

 the first period this tree decreased 4"7 per cent, in July, 

 and in the second period increased 14 per cent, in that 

 month, actually followed by a slight decrease in August. 

 No other deciduous tree behaves in this extraordinary 

 manner. Its measurement record for nine Julys is — 

 Naught : 5 millimetres ; Naught : 2 millimetres ; 5 milli- 

 metres; 5 millimetres; 4 niilliiuetres: 1 millinictre; 6 milli- 

 metres, — equal to 28 millimetres. 



The Acer in this second period distributes its chief 

 growth over six montlis, whereas in tlie first period its 

 cjiief growth was confined to, at most, five months ; and it 

 seems to begin its chief growth a month earlier (October) 

 in the later than in the former period (November); as also 

 does the Cottonwood, which, like the FopvJiis fastifjiata, 

 has a decrease in July, but sliglit in comparison with 

 its May loss. All three of those trees show a decrease 

 in May. 



