Accounting for environmental and socioeconomic sustainability in Northeast Thailand: towards decision support for farmers and extension workers

Sustainable agricultureFarming systemsFertilizersEconomic aspectsIncome

On the magnetic variation of Hobart

It is, I believe, about 18 years since there has been determination of the magnetic variation here, at all events published. It may have been, and very probably was, observed by the American Transit of Venus Expedition in 1874; but, if so, it does not appear to have been published. The most recent authentic observation I can find is that of Dr. Geo. Neumeyer in April, 1863, as included in his "Results of the Magnetic Survey of the Colony of Victoria.

Opening address of his Excellency Sir J. H. Lefroy, C.B., K.C.M.G., F.R.S., President

Gentlemen,the profound sense which I have of my slender qualification for the honourable position which the constitution of this society assigns to Her Majesty's representative, and of my inability to address you with the authority of a master in any field of the vast domain of science, shall not tempt me to take up your time with vain excuses for allowing myself to be placed in such a position. There has been, as you are aware, a considerable interval of time since my predecessor delivered an inaugural address upon a similar occasion. I should be unwilling to see the custom of an occasional presidential address abandoned, and I ask your indulgence for the remarks which, at the request of your Council, I have committed to writing, upon subjects of immediate interest to this Society, however wanting in scientific value