195 



1906.— In Journ. Roy. Soc. N.S.W., xl, civ (1906), Mr. James Nangle, of the 

 Technical College, Sydney, exhibited transverse sections of timbers of various Eucalypts, 

 together with photo-micrographs of the sections, and gave some account of his 

 observations. These include — E. sideroxylon, E. polycmthemos, E. hemiphloia, E. crebra, 

 E. bicolor. 



1917.— In Journ. Roy. Soc. N.S.W., li, 410, Mr. R, T. Baker has a paper " Some 

 Ironbarks of v New South Wales," in which he gives anatomical notes in regard to the 

 timbers of the following : — 



E. paniculata Sm., E. Fergusoni n.sp. (with microphotos of transverse, radial 

 and tangential sections), E. Nanglei n.sp., E. Beyer i n.sp. I have shown in Part 48 

 that, in my view, E. Fergusoni and E. Nanglei are not specifically different from 

 E. paniculata. 



1919. — Under the heading of " Structure," and chiefly referring to the timber 

 of E. regnans, see a brief account in the paper by R. T. Patton in Proc. Roy. Soc. Vict, 

 xxxi, 410 (1919). He speaks of its outstanding feature in the simplicity of its structure 

 as compared with Pine (Pinus). 



1919. — R. T. Baker, in his " Hardwoods of Australia," has a chapter at p. 18 on 

 * Fibrous Bodies." They are divided into two kinds, wood-fibres and septate wood- 

 fibres. He refers to their arrangement in E. crebra, E. paniculata, E. oreades and 

 E. rubida, and gives highly magnified figures of them in E. microcorys, oreades, gigantea 

 (delegatensis), siderophloia. 



Dealing with Vertical or Wood parenchyma, at p. 19, he says — " The disposition 

 of wood parenchyma cells is of some taxonomic value, for they are found arranged in 

 various forms in different genera or species, as, for instance, in Eucalypts they occur 

 clustered around the large vessels or pores, or scattered amongst the wood fibres. This 

 is well seen in the various transverse micro -sections of Eucalyptus species." 



Crystals (Calcium Oxalate). 



The presence of crystals in Eucalypts has been referred to under Barks, see 

 Part LII, p. 99. 



In my " Forest Flora of New South Wales," v, 175, I have some notes on timbers 

 which are reputed to cause irritation, including E. maculata, E. hemiphloia, and 

 E. marginata. As regards the last, Mr. C. E. Lane-Poole, late Conservator of Forests 

 of Western Australia, informs me that the reputed Jarrah (E. marginata) unloaded at 

 Port Hedland, was really Karri (E. di versicolor), and that the timber was Powellised 

 and therefore arsenical. As regards the other two species, the question of arsenic does 

 not appear to come in, and I throw out the suggestion that Calcium Oxalate may be 

 inquired into as the cause. 



