PROCEEDINGS OF THE SECTIONS. 



Section A. 



ASTRONOMY, PHYSICS, MATHEMATICS, 



AND MECHANICS. 



President of the Section: R. L. J. ELLERY, F.R.S., rtc, Government 

 Astronomer of Victoria. 



The First Meeting of the Committee of the Section was held in 

 the Lecture Room of the Physical Laboratory of the University 

 on Wednesday, August 29th, 1888. Amongst the Members 

 present were the following : — 



R. L. J. Ellery, M.A., F.R.S., President of the Section; 

 H. C. Russell, B.A., F.R.S., President of the Association; 

 Professor R. Threlfall, M.A., Secretary of the Section; W. 

 Sutherland, M.A. ; J. F. Adair, M.A. ; H. A. Lenehan, A. 

 Pollock, N. A. Graydon. 



It was decided that the following order should be observed in 

 the reading of the Papers ; — 

 For Wednesday, August 29 — 



L The President's Address. 



2. Two Papers by W, Sutherland, M.A., one on "The Law 

 of Molecular Force," and one on " Molecular Refraction." 

 For Thursday, August 30 — 



L A Paper by H. C. Russell, F.R.S., on "The Early History 

 of Astronomy in Australia." 



2. A Communication by Professor Arthur Riicker, requesting 

 information as to Magnetic Irregularities, supposing any to occur 

 in Australia. 



3. A Paper by N. A. Graydon, on "Variations of Atmospheric 

 Pressure and Wind." 



For Friday, August 31 — 



A Communication by H. C. Russell, F.R.S., on "A Proposed 

 Means of Estimating Variations of the Vertical and recording 

 the same continuously." 

 The following Papers by Professor Threlfall, M.A. :— 



1. On " The Physical Laboratory at the University." 



