346 



" Silverleaf (E. melanophloia) Country. — This Ironbark, south of the Dividing Range, is usually 

 characteristic of soils of fair quality, but not deep. The rock is near the surface. It is country which has 

 a good mechanical composition, but, owing to the soil being shallow, it is liable to dry out very quickly 

 in dry weather. The grass is good in good seasons, but bad in bad seasons. We get the Silverleaf mainly 

 on felspathic and calcareous sandstone, while Pine dominates on siliceous sandstones. The commonest 

 associate of Silverleaf is Poplar Box. 



" We have notes of the Eucalypts on the driest Pine soils and on soils better supplied with moisture. 

 The basaltic lands around Mount Hutton carry chiefly Box (this is the true Box, E. hemiphloia), Coolibah 

 \E. microtheca) and Silverleaf Ironbark (E. melanophloia)." (p. 299.) 



See the issue of December, 1921, p. 358 : — 



" Having treated fairly lengthily of the soils between Roma and Injune, we can now discuss the 

 soils of the other regions more cursorily, the principles having been explained. 



" Travelling up the Maranoa Valley from Mitchell, there is the Cretaceo-tertiary Desert Sandstone 

 This, on the Mitchell region, is a very siliceous sandstone, and has very poor sandy soils, often coarse sand. 

 Eucalypts, Yellow Bloodwood (E. trachyphhia) , Moreton Bay Ash (E. tessellaris), Crooked Gum (E. dealbata). 

 North of the Walloon area we get the Bundamba sandstones. The soils are typical Box (E. populifolia). 

 (p. 359.) 



" North of the Bundamba sandstone in the Main Dividing Range we get fairly large areas of fine 

 basalt country. Coolibah, Gum-top Box (E. hemiphloia), and Silverleaf Ironbark are the main timbers. 



" Along the tributaries of the Nogoa the timbers on the basalts are mostly Box (E. hemiphloia) 

 and Silverleaf Ironbark. Below the basalts we have the ' Upper Bowen ' sandstones. . . . The soil 

 is poor siliceous sandy loam. The timbers in this region comprise Spotted Gum (E. maculata), Crooked 

 Gum (E. dealbata), Moreton Bay Ash, Ironbark (E. decorticans), Stringybark (E . acmenioides). The coal 

 measure portion of the ' Middle Bowen ' formations have abundant Bloodwood (E. terminalis), Silverleaf 

 Ironbark, Box (E. populifolia). The soils are good in all mineral plant-food constituents, (p. 360.) 



" The conglomerate sandstones of the ' Middle Bowen ' formation in this area, and in other areas, 

 are much better in soil and stock feed than the sandstones of the Bundamba and Upper Bowen formations. 

 . . . The timbers of this belt include conspicuously, Spotted Gum (E. maculata), Yellow-jacket 

 (E. Watsoniana), River Red Gum (E. rostrata), Moreton Bay Ash, Cabbage Gum (E. papuana), and Blood- 

 wood (E. terminalis). The alluvial soils throughout the Nogoa quadrant are splendid. The characteristic 

 timber is Coolibah (E. microtheca). At the head of the tributaries of the Brown River we meet the Ipswich 

 formation sandstone, a yellow sandstone, rich in felspathic detritus, hence good in potash, on which we 

 have open forest with Box species, viz., E. populifolia, E. Gambaijeana, E. hemiphloia, also Ironbark 

 (E. melanophloia) and E. crebra) 



" The alluvials along Consuelo Creek, Carnarvon Creek, &c. . . . are superior to anything 

 I have seen elsewhere. They form Coolibah and Ironbark country. The Silverleaf Ironbark, which south 

 of the Carnarvon Range favours a stony ground with shallow soil, becomes in this region a denizen par- 

 ticularly of deep alluvial soils. This, of course, depends absolutely on the fact that Silverleaf Ironbark 

 must have a sufficiently calcareous soil and good drainage to live." (p. 361.) 



AVe now turn to the issue of January, 1922, p. 13. Here he deals with the 

 Westgrove-Glenhaughton country. The two areas consist of Bundamba sandstones 

 in the northern parts, passing into the highly calcareous Lower Walloon rocks in the 

 southern and south-eastern parts. On the Bundamba soils we have Ironbarks 

 (E. decorticans, E. melanophloia (narrow-leaved variety), E. crebra, Spotted Gum, Lemon- 

 scented Gum, Crooked or Tumbeldown Gum, Moreton Bay Ash, Stringybark (E. acmeni- 

 oides), Bloodwood (E. terminalis), Yellow-wood (E. Watsoniana), Yellow Bloodwood 

 (E. trachyphhia). 



