x REPORT—1905. 
Page 
2. tOn the Theory of Algol Variables. By J.H. JBANS.........cecsccsesecceee oo Jed 
8. Double Star Astronomy in the Southern Hemisphere. By R. T. A. 
ENE, BU SeBiavas svngas sesh senas sees op rebine nantesionatasces'scarkh sae attra seamen 
4, On Lunar Radiation. By the Earn or Rosss, K.P., F.R.S, ...........000. 335 
5. A New Instrument for Measuring Stellar Photographs. By Arruur A. 
AMBAuT, MOA, DS, F RiGa conces<cariec<ne-oneavsereeeteceaseteneeanem esse OOD 
G. Note on Professor ieanleynta Method of Determining Stellar Parallax by 
Means of Photography. By Arruur A. Ramsavt, M.A,, D.Se., FR. 3 538 
7. A Comparison of the Long-period Rainfall Records at Oars Town a 
Greenwich. “By Hiuca: Roperr) Mint, DiSc:, 4.....ss.1:ssseseedseneeeeneee 338 
8. The Effect of the Sun-spot Period on the Daily Variation of the Magnetic 
Elements at the Cape of Good Hope. By G. H. Fincnam,B.A.. . 338 
9. *Can the Earth’s Motion through A%ther affect Material Phetiemndlie 
Ly Professor J. Larmor, Sec. Ta Shai descadscdissevaesasseclees oe 339 
J OHANNESBURG. 
TUESDAY, AUGUST 29, 
1. On the Origin and Progress of the Geodetic Survey in South Africa, and of 
the African Arc of Meridian. By Sir Davin Gitt, K.0.B., F.R.S. (p. 228) 239 
2. On Winding Ropes in Mines. By Professor JoHn Pan PR Siac, «alae 399 
3. “On the Present State of the Lunar Theory, and on the Formation of a 
New Set of Lunar Tables. By Professor E. W. Brown, F.R.S. ......... 839 
4. *The Value of the Secular Acceleration of the Moon derived fork tte 
Harly Helipses.of thé, Sun. , By HE. N&vUuLL :......5:-.00>--esesinanelahanetaleee 339 
5. On the Density of Matter in Space. By R, T. A. INNES.............:0ccceee 339 
6. The Distances of the Nearer Fixed Stars. By R.'l, A. Innms ............ 340 
7, A Dry Daniell Pile. By J. Brown, F.R.S, ............ cdistdoetiie ata dee Nag Waeiaee 540 
WEDNESDAY, AUGUST 30. 
1. Report of the Seismological Committee (p. 83). ........:cccccessseceeeesseeeeees 340 
2. Recent Advances in Seismology. By JoHn Mrtne, F.R.S. ...........000. 340 
3. yeah on the Investigation of the Upper Atmosphere by means of Kites 
Cpe Bb ateriiasa die sotin Haass aacrtegchaeatt spp tre ccteaahs aprenden Bay dtcohiai Gat thn tan 341 
4, Report on Meteorological Observations on Ben Nevis (p. 77) ......cceceeees 341 
5. *On the Teaching of Elementary Mathematics. By Professor Joun Perry, 
BRS icons ceqeantonets. Pp aeldelale clatatlelfelcetelelsatte(a. (eee iflnlee'o is eeettele ga eens See on 
6. Report on the Magnetic Observations at Falmouth Observatory (p. 80) .. 
7. The Experimental Foundations of the Theory of Heat Conduction. 
Cares H. Luss, D.Sc. ............ Faevevewebicnlena dincnesdeeteneataaes slept aa naneem 341 
8. Meteorological Notes from Natal Observatory. By R. Fermor Rey- 
SA Lip opi ye Nl ell tare Ws a ari ae Sr MP Al PEER or rir 342 
9. On the inten eetatien of Signs in the Formule of Solid Geometry. By 
Prolessore tn, VW GNESH, NDALt. .;..s.01ve.cssesuecs usacasaviewssont cneene Rta 343 
10, *“Graphic Methods in ae Sie Trigonometry. By Professor G. H. 
Bryay, F.RBS. . atieeuccenuetieess PS A Roses BRONGEOSHO DS AeneMencniotie 2s" 
