American Black Walnut was much prefered in the early days of railroading in the USA because its heartwood had a fair resistance to rot compared to other hardwoods. It was so much in demand before the process of creosoting was developed that it became a bit scarce in the eastern states. The dust from sawing dry walnut is a bit irritating to the nostrils and dust filters are advisable if one works with it a lot. Thanks for the information on the flora of Australia! Unka Jesse > Jarrah. > One of the commonest and most well-known trees of the south-west <of > Australia> , jarrah is a stately tree with a straight trunk. For many years > it has been the principal hardwood tree harvested for timber. Its richly > coloured and beautifully grained timber is sought after for cabinet making, > flooring and panelling and is resistant to termites. Before the era of > bitumen roads, famous roads in cities such as London and Berlin were paved > with blocks of jarrah. > MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.