uses to which many of them are, or may be, applied. So 

 long as thirty years ago, Mr. Brown stated in his General 

 Remarks on the Botany of Terra Australis, that of Euca- 

 lyptus alone, nearly one hundred species had been already 

 observed, most of them trees, and many of them of enor- 

 mous dimensions, and that Mr. Caley had detected within 

 the limits of the colony of Port Jackson, nearly fifty spe- 

 cies, most of which are distinguished, and have proper 

 names applied to them, by the native inhabitants, who, 

 from differences in the colour, texture, and scaling of the 

 bark, and in the ramification and general appearance of 

 these trees, more readily distinguish, than Botanists have 

 hitherto been able to do. Yet, though so generally spread 

 over the whole of Terra Australis, the Genus is hardly found 

 beyond that country, and Mr. Brown was acquainted with 

 one exception only, in an additional species, which is said 

 to be a native of Amboyna. — Judging from what I have 

 myself received, the number of species now known to us 

 cannot fall short of double the number above mentioned, 

 namely, two hundred. Mr. Backhouse and my son, Dr. 

 Joseph Hooker, have made MSS. remarks upon a great 

 number of new species in Van Diemen's Land : and it is 

 there that the trees are seen to attain the most gigantic 

 size. Near Richmond, in Yorkshire, the former gentleman 

 visited a place in the forest remarkable for an assemblage of 

 gigantic " stringy Barks," Eucalyptus obliqua? There, 

 within a space of half a mile, he measured ten different trees 

 from thirty to fifty-five feet in circumference, at four feet 

 from the ground ; and some of these, fine sound trees, were 

 upwards of two hundred feet high. One prostrate tree, was 

 thirty-five feet in circumference at the base, twenty-two feet 

 at sixty-six feet up, nineteen feet at one hundred and ten 

 feet up. There were two large branches at one hundred 

 and twenty feet, and the elevation of the tree, traceable by 

 the branches on the ground, was two hundred and thirteen 

 feet. " We ascended this tree on an inclined plane formed 

 by one of its limbs, and walked four abreast with ease upon 

 its trunk ! In its fall it had overturned another one hun- 

 dred and sixty-eight feet high, which had brought up with 

 its roots a ball of earth twenty feet across. It was so much 

 imbedded in the earth that I could not get a string round it 

 to measure its girth. On our return, I measured two stringy 

 Barks near the houses on the Hampshire hills, that had 

 been felled for splitting into rails, each one hundred and 

 eighty feet long. Near to them is a tree that has been 



felled, 



