SECTION G had a good meeting at Edinburgh this year, there being a great improvement on last year's gathering at Cardiff. On the members assembling on Thursday morning the fourth inst. in the old University Buildings the first business was naturally the Presidential address. Prof. W. C. Unwin, F. R.S., who this year occupied the chair, is eminently fitted to preside over the Mechanical Science Section. His knowledge of the scientific side of mechanics is well known, and his past experience in the region of practical mechanics puts him thoroughly in touch with the many engineers who frequent the section. His address, which we have already printed, was listened to by a large audience, the theatre being quite full. The vote of thanks to the President for his address was moved by Lord Kelvin and seconded by Mr. Deacon, of Liverpool.