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1902.— In J own. Roy. Soc. N.S.W., xxxvi, p. 319 (1902) I submitted the following 

 notes on classification : — 



1. Gums. — These timbers are short in the grain, dry to a brown or reddish colour, 

 crack radially in drying, have many gum- veins, and, as a rule, lack durability. Their 

 barks are smooth, and more or less ribbony. Examples : stellulata, coriacea, hcemas/oma, 

 viminalis, Gunnii. They connect with the " Boxes " (Bastard), and also with the 

 smooth-barked members of the Jarrah Group. 



_ 2. Mallees. — Examples : oleosa, Behriana, incrassata. This is a group based 

 on geographical considerations. They are arid country species, and connect the " Gums " 

 and "Bed Boxes." 



3. Ironbarks. — These are fully described in my " Notes on the Commercial 

 Timbers of New South Wales." They consist of (a) True Ironbarks, viz., paniculata, 

 siderophloia, crebra, sideroxylon ; (6) Bastard Ironbarks, timbers very similar to 

 Ironbarks, but the barks belonging to the " Box " group. They consist of Boormani 

 and affinis; melanophloia (and perhaps microtheca) connect the two groups. 



4. Boxes. — These are tough, interlocked timbers, usually with fibrous bark on 

 the trunk, and may be subdivided into :— 



(a) Pale. — Examples : hemiphloia, melliodora, Bosistoana, Baueriana, populifolia, 



quadrangulata, Cambagei (ekeophora), goniocalyx, tesselaris, leucoxylon, coryno- 

 calyx (cladocalyx), globulus. 



(b) Red. — Examples : bicolor, microtheca, polyanihema, odorata (should be brown), 



fasciculosa. These two groups include some smooth barks or " gums," but 

 their timbers are provisionally classified with the " Boxes." 



(c) Bastard. — Examples : Stuartiana, pulverulenta, Macarthuri, aggregata. The 



timber of (c) is inferior and closely resembles that of the Gums. 



5. Stringybark Group. — This includes a number of fissile timbers that pass into 

 each other and may be subdivided as follows : — 



(a) True Stringybarks. — Examples : eugenioides , macrorrhyncha, capitellata, obliqua, 



Baileyana. 



(b) Blackbutts. — Examples : pilularis (which absolutely connects with the Stringy- 



barks through its variety, Muelleriana), acmenioides. The most valuable 

 timbers of the group. 



(c) Peppermints. — Examples : amygdalina, regnans, dives, piperita ; these timbers 



have gum-veins and are altogether inferior in quality. 



Allied to these are : — 



6. Mountain Ash Group. — Fissile timbers usually pale in colour, and with bark 

 not so fibrous as the preceding. Example : Sieberiana. 



7. Tallow-ivood and Spotted Gum. — E. microcorys and E. maculata, two valuable 

 pale-coloured timbers, sui-generis. 



