xii REPORT — 1900. 



MONDAY, SEPTEMBER 10. 



Department I. — Mathematics. 



Page 



1. Eeport on Tables of certain Mathematical Functions (p. 46) 043 



2. Eeport on the Present State of the Theory of Point-Groups (p. 121) 643 



3. A Property of the characteristic Symbolic Determinant of any n Quantics 



in ?i Variables. By Major P. A. MacMahon, F.R.S G44 



4. Sur las Relations entre la G^ometrie Projective et la Mecanique. Par 



M. Cyparissos Stephanos 644 



5. The use of Multiple Space in Applied Mathematics. By H. S. Carslaw 644 



6. Determination of Successive Pligh Primes. B\' Lieutenant-Colonel Allan 



Cunningham, R.E., and H. J. Woodall, A^R.C.Sc 646 



7. *0n the Construction of Magic Squares. By Dr. J. Willis 646 



8. The Asyzygetic and Perpetuant Govariants of Systems of Binary Quant Ics. 



By Major P. A. MacMahon, F.R.S 646 



9. On the Symbolism appropriate to the Study of Orthogonal and Boolian 

 Invariant Systems which Appertain to Binary and other Quantics. By 

 Major P. A. MacMahon, F.R.S 647 



10. A Quintic Curve cannot have more than fifteen real Points of Inflexion. 



By A. B. Bassett, F.R.S 647 



11. On a Central-difference Interpolation Formula. By Professor J. D. 

 Everett, F.R.S 648 



12. On Newton's Contributions to Central Difference Interpolation. By 

 Professor J. D. Everett, F.R.S 650 



Department II. — Meteorology. 



1. Report on Meteorological Photography (p. 56) 650 



2. Report on Seismological Observations (p. 59) 650 



3. Fifth Report on the use of Kites to obtain Meteorological Observations at 

 Blue Hill Observatory, Massachusetts, U.S.A. By A. Lawrence 

 Rotch, S.B., M.A 650 



4. Charts illustrating the Weather of the North Atlantic Ocean in the 



Winter of 1898-99. By Captain Campbell-Hepwoeth 651 



5. *The Physical Effects of Winds in Towns and their Influence on Ventila- 

 tion. By J. W. Thomas 652 



6. *A Novel Form of Mercurial Barometer. By A. S. Davis 652 



7. The Rainfall of the Northern Counties of England. By John Hopkin- 



soN, F.R.Met.Soc, Assoc.Inst.C.E '. 652 



8. Report on Meteorological Observations on Ben Nevis (p. 46) 654 



0. Report on Recording the Intensity of Solar Radiation (p. 3G) 654 



10. Report on establishing an Observatory on Mount Royal, Montreal (p. 33) 654 



TUESDAY, SEPTEMBER 11. 



1. Report on Electrolysis and Electrochemistry (p. 34) 654 



2. *A Discussion on ' Ions,' opened by Professor G. F. FitzGerald 654 



3. The Radiation of a Black Bodj' on the Electromagnetic Theory. By 



H. 0. Pocklington, M.A., D.Sc 654 



