338 TUANSACTIONS AND PROCEKDINGS OF TUK [Srss. Lxvir. 



shafts. It resembles iimch more that of the blue gum 

 than the stringy bark trees; it is hard, and when seasoned, 

 dillicult to cut, but it burns well even when fresh. This 

 wood is of superior quality, light, tough, and elastic. It is 

 used for the swingle trees of buggies, ploughs, etc., but it 

 will not endure underground. 



Eucalyptus Gunnii (cider gum). — Under favourable 

 conditions this tree attains a height of 250 ft., but usually 

 it is not tall, often crooked or much branched. The wood 

 is hard and very good for niany purposes of artisans ; it 

 does not split well, but is good for fuel. The tree is 

 noted for yielding a sap of not unpleasant taste, which 

 is converted into a kind of cider, hence the common 

 name. 



Eucalyptus old'Kiua (stringy bark, and messmate gum). 

 — This valuable tree is straight stemmed, of rapid growth,, 

 attaining a maximum height of 300 ft. It is one of the 

 most important in regard to its abundance, being the most 

 gregarious of all our forest trees, and, on account of the 

 ease with which the wood is worked, it supplies a large 

 proportion of the ordinary sawn hard timber for rough 

 building purposes. Being very fissile, it is also extensively 

 split into fence rails, paling.^, and shingles ; it is light 

 coloured. The specific gravity of the wood varies from 

 0-809 to 0-990, or from 50 to GO^ lb. per cubic foot. 

 Mr. F. Campbell found the tensile strength per square inch 

 to be equal to a pressure of 8200 to 8500 lb. Baron 

 Ferdinand von Mueller has shown that the bark is 

 suitable for the manufacture of paper, not only for 

 packing, mill- and paste-boards, but also for printing and 

 writing. The utility of this tree is therefore very great. 



Ehamnace.'E. — Re2)rescnted hy 3 Genera at suh-alpinc 

 habitats. — Pumaderris apetala, which ascends in shrubby 

 form to 4000 ft., forms a dense undergrowth at the lower 

 levels, straight stems attaining a height of from 1 5 to 20 ft. 

 P. elacho2)hylla , P. elliptica, and P. phylicifolia ascend to 

 3000 ft. 



Cryptandra amara ascends to -4000 ft., a pretty white- 

 tlowered shrub. 



