PROCEEDINGS OF THE SECTIONS 
Section A.—ASTRONOMY, MATHEMATICS anp PHYSICS. 
WEDNESDAY, lOTH JANUARY, 1900. 
PAGE 
Address by G. H. Knibbs, F.R.A.S., L.S., President of the Section 18 
THurspay, lltH JANUARY, 1900. 
1. The Annual March of Temperature at Melbourne. By R. J. A. 
Barnard, M.A. a ee om w= ... 184 
2. The Production of Micrometric and Diffraction Rulings. By 
Henry J. Grayson ss he ne apy I 
3. The Lunar Eclipse of June, 1899 —... a chy 4 oe 
Fripay, 12rH JANuarRy, 1900. 
4, A Possible Cause of the Earth’s Magnetism, and a Theory of its 
Variations. By W. Sutherland, M.A. ... ‘gs 2.4 AS 
5. On Certain Surface and Volume Integrals of an Ellipsoid. By 
KG. Hoge, M.A. wits ioe ~ ts ne oo 
6. Electro-Magnetic Reflection and Refraction. By Professor A. 
M‘Aulay, M.A. ee A ay, es ww JS 
i oh aaa Note on the Specific Inductive Capacity of ee 
By T..P. V.. Madsen. 2 196 
8. A Gravity Ses By Professor Re Threlfall, M.A. : “and Pro- 
fessor J. A. Pollock, B.Sc. = 196 
9. The Bicycle Wheel. By B. A. Smith, M.C.E. Be as eae 
10. Note on the Permeability of Samples of Steel cast in Melbourne. 
ay W. N. Kernot, B.C.E. io of KS ws 
SATURDAY, 13TH JANUARY, 1900. 
11, Fluid Viscosity and the Temperature Variation. an R. Hosking 195 
12. The Transference of Energy through Space. By J.G. O. Tepper 203 
Section B.—CHEMISTRY. 
Wepbwnespay, lOtTH JANUARY, 1900. 
Address by F. B. Guthrie, F.C.8., President of the Section eee 
