AND THEIR ESSENTIAL OILS. 47 



he could find the tree of the so-called E. haemastoma 

 (supra), in order that his material might be compared 

 with that upon which this investigation is based. This 

 " Gum-topped Stringy-bark " proved to be identical with 

 the material previously sent by Mr. Laseron, and also 

 with the Mountain Ash trees at Mt. Delegate, New South 

 Wales, upon which the specific name was bestowed. 



Mr. Stephen's remarks (Pro. Roy. Soc. Tas. 1881, p. 

 24), viz.: "The chief peculiarity of this tree is, that 

 while the lower part of the butt is clothed with a thick 

 fibrous bark closely resembling that of the common ' Stringy- 

 bark ' (E. obliqua), the upper part and the smaller limbs 

 arid branches are quite smooth, whence its popular name. 

 The timber is highly prized by splitters, and, for generil 

 purposes, it is described by many competent authorities 

 as second only to the ' Blue Gum,' though opinions seem 

 to differ as to its durability." 



It may thus be concluded, from the evidence adduced, 

 that the ' ' Gum-topped Stringy-bark ' ' of Tasmania grow- 

 ing at an altitude of about 2500 feet and above is this 

 species. The fruits vary somewhat in appearance, and 

 are not always uniform, even for the same tree, the flat- 

 topped or oval-topped rim of some forms being inter- 

 spersed with thin-rimmed, countersunk fruits. The chemi- 

 cal characters of the trees, however, appear to be con- 

 stant. 



Whilst this investigation shows that the botanical and 

 chemical characters of the mainland and island trees cor- 

 respond, it may be mentioned en passant that it is the 

 species recorded by Rodway in the " Flora of Tasmania " 

 (p. 57) as E. haemastoma, from Mueller's naming. The 

 timber of this tree is used in Tasmania, and exported 

 under the name of " Tasmanian Oak." 



The species is described and illustrated in Proc. Linn. 

 Soc. N.S.W., 1900 (p. 305 and Plate XVI.), and this 

 description again amplified in our work " Eucalypts and 

 Their Essential Oils " (p. 186), so need not be repeated 

 here. 



E. haemastoma, Sm., as far as we have been able to 

 ascertain, does not occur in Tasmania. 



Habitat. Mr. L. Rodway informs me E. Delegatensis 

 is common in North -Eastern Tasmania. It is thus widely 

 distributed in the island. 



CHEMISTRY. 



Essential Oil. Material of this species was collected in 

 July, 1908, at Mt. Wellington, at an altitude of about. 



