xe REPORT—1904. 
, 
TRANSACTIONS OF THE SECTIONS. 
Section AA—-MATHEMATICAL AND PHYSICAL SCIENCE. 
THURSDAY, AUGUST 18. 
Page 
Address by Professor Horacr Lams, M.A., LL.D., F.R.S., President of the 
Section 
1, Thermal Dilatation of Compressed Hydrogen. By A. W. Wirkowsxr 431 
. Experiments to decide whether the Ether moves with the Earth. By 
PPEOECESGE NW.) WUBIN @.<.5 02 vgaesesccscecesdiessounedeedasssaages eee 433 
Preliminary Note on the Tangential Stress due to Light incident obliquely 
on an Absorbing Surface. By Professor J. H. Poynrrna, D.Se., F.R.S. 434 
4, The Reaction of the Radiation on a Moving Electron. By Professor M. 
bo 
ge 
ERSIPAIAME 535.5 «+ sn tntnia ddelosyeta's a ass vsuvcies’o-asWalinich-< 20 coe te geen a 436 
5. tQuantitative Determination of the Anomalous Dispersion of Sodium 
Vapour) By Professor R..W. Wood: «..........,42:-<e0seacceuee 438 
6. On the Dynamical Significance of Kundt’s Law of Anomalous Dispersion. 
By Protessor J, LARMOR, Sec.B:S.., .........c+sesessc0sseseeseendee ee 
7. On the Relation of the Réntgen Radiation to Ordinary Light.. By Pro- 
BESSOT Je MGATMO SOC.EGS. voeus.0sccestsesssssciceveesacecceeeee yao 438 
DEPARTMENT OF MATHEMATICS, 
1, A Fragment of Elementary Mathematics. By Professor F. Moriey...... 439 
2, *“Peano’s Symbolic Method. By A. N. Wuirpnpan, FIRS. ....ccccceeeeee 440 
3. *The Theory of Linear Partial Differential Equations. By Major P. A. 
POM a OM, Ses OBES 5 6.22 cp ecu cckvsoussasaseasonssc csc eee 440 
4, On the Roots of the Characteristic Equation of a Linear Substitution. 
Bay Ti. VA ROW RGR © oa coe oe osee8sceiievasadevesvea s+ sss0siaase ee 440 
5. On the Zeroes of Two Classes of Taylor Series. By GH. Hanoy 44] 
6. Binary Canon Extension. By Lieut.-Col. ALLAN CunnincHam, R.E. ... 443 
7. *On the Theory of Transfinite Numbers. By Dr. E. W. Hosson, F.R.S. 443 
FRIDAY, AUGUST 19. 
SUB-SECTION or AsrronoMy AND CosMIcAL Puysics, 
Address by Sir Joun Extor, K.C.LE., M.A., F.R.S., Ohairman.................. 443 
1, The Spectra of Sun-spots. By the Rev. A. L. Corris, 8.J., F.R.AS, ... 458 
2. *The Temperaturo of the Stars, By Sir Norman Locxyer, K.C.B., F.R.S. 459 
