Notes

Abstract

THE first of the series of the free science lectures in connection with the Loan Collection of Scientific Instruments was given on Saturday evening at eight o'clock. The notice issued was but short, yet the room was not only as full as it could be, but the crowd was such that if space for 1,000 had been provided, all the places would have been occupied. The lecturer, as we announced, was Prof, Roscoe, and his subject was “Dalton's Instruments, and what he did with them.” The following gentlemen have already volunteered to give their valuable assistance for future lectures, which will take place on Monday, Tuesday, and Saturday evenings at 8 o'clock:—Prof. F. A. Abel, F.R.S., President of the Chemical Society, Capt. Abney, R.E., F.R.S., Prof. Roscoe, F.R.S., Dr. Warren De la Rue, F.R.S., Prof. G. Carey Foster, F.R.S., President of the Physical Society, Dr. J, H. Gladstone, F.R.S., Prof. Guthrie, F.R.S., Mr. J. Baillie Hamilton, Mr. Norman Lockyer, F.R.S., Rev. R. Main, M.A., F.R.S., the Right Hon. Lord Rayleigb, F.R.S., Dr. W. J. Russell, F.R.S., Mr. W. Spottiswoode, M.A., F.R.S., Dr. W. H. Stone, Rev. S. J. Perry, F.R.S., the Right Hon, Lyon Playfair, M.P., F.R.S., the Right Hon. the Earl of Rosse, F.R.S., Mr. C. V. Walker, F.R.S., Mr. W. C. Roberts, F.R.S., Mr. W. H. Preece. The next lecture will be given on Saturday evening by Prof, Guthrie, On Cold; on Monday the Rev. S. J. Perry will lecture On the Transit of Venus Instruments. It is proposed to give the following demonstrations on Saturday, Monday, and Tuesday next:—11 A.M., Marine Engines in Motion; 11.30, Fog Horns, Electric Light, Spectrum of Electric Light; 12.45 P.M., Time Gun; 1.30, Radiometers; 2 to 5, Pictet's Ice-making Machine; 2.30, Orreries; 3, Sir J. Whitworth's Millionth Measuring Machine and True Planes (Monday only); 3.30, Electric Light, Musical Instruments (Monday only), Ancient Musical Instruments (Tuesday only); 4.30, the Times Type-Composing Machine; 7.30, Telegraphic Apparatus (Monday and Tuesday only); 8, Sir J. Whitworth's Machines (Monday only); 8 to 9, Little Basses' Lighthouse; 8, Lecture in Conference Room (Saturday and Monday). In the list of papers read on Tuesday week we omitted to mention those of Dr. C. B. Fox, “On the Employment of Aspirators in Atmospheric Ozonometry,” and Mr. J. Allan Broun “On Barometric Variations and their Causes.” On Thursday, besides the papers already mentioned, Dr. Rae made a communication on Arctic Maps. On Friday Mr. W. S. Mitchell read a paper on the MS. tables and maps of William Smith. On Whit Monday 11,964 people visited the Collection; on Tuesday the number was 5,656.