30 DR. R. ANGUS SMITH ON THE 



of Corsica, goes over the whole subject very fully; and jour- 

 nals in abundance have treated the subject. But strong 

 aSj I believe, the arguments are, I should conclude that even 

 if they were weak the tree ought to be encouraged and 

 grown largely, because, if the benefit of the curative agency 

 were less, there is another advantage arising; and that is 

 from the nature and amount of the wood. I went to 

 Tre Fontane with a friend, Mr. James Young, F.R.S., who 

 plants about a million and a half trees in this country 

 annually, and had studied the growth carefully ; and he said 

 that trees with us require from fifteen to thirty years to 

 grow the wood made in five years by the Eucalyptus. The 

 question I then asked was this — " Does this rapid growth 

 arise from the difference of climate in Scotland and Italy V 

 But the surprise of the Italians at the rapid growth was 

 equally great, although I am not able to tell the difference 

 of increase of similar kinds of trees in the two countries. 

 See on this also the book quoted. 



M. Lambert, quoted by M. Carlotti, gives the growth in 

 Algeria thus : — 



centim. inches. 



Circumference in centimetres and inclics after I year lo 3-9 



„ „ „ 2 years 13 5'i 



„ ,, >' ■ 3 > 30 ii'8 



4 >. 40 157 



5 -. 55 ai-6 



,, n ,, 6 „ 75 295 



.. » 7 ., 90 35'4 



„ „ „ 8 „ 120 47-2 



9 150 59'o 



Mr. Carlotti has seen the growth of eleven months 

 to be equal to 17 centimetres (=6*693 inches) in circum- 

 ference. 



Wood about Rome is scarce ; people are cold in winter, 

 and would gladly use a fire ; and they put cloaks on even in 

 their houses, I am told. True, their winter is short. It 

 is a very expensive thing to have a fire in u hotel, and one 



