462 
Proceedings of the Royal Society of Edinburgh. 
Faraday-Tube Theory of Electro-Magnetism, by 
the late W. G. Brown, 225-246. 
Fatigue, by W. Peddie, 319-320. 
Fellows, Honorary, 445. 
Obituary Notices of, 362-395. 
List of Ordinary, 425. 
Deceased and resigned, 1921-22, 447. 
Elected in 1921-22, 402, 447. 
Question of Junior Grade of, 405. 
Ferromagnetic Action, Models of, by Sir J. A. 
Ewing, 97-128. 
Fisher (R. A.). On the Dominance Ratio, 321- 
341. 
Forsyth (A. R. ). The Concomitants (including 
Differential Invariants) of Quadratic Differen- 
tial Forms in Four Variables, 147-212, 
Fourier-Bessel Expansion, Validity of a, by T. M. 
MacRobert, 89-96. 
Franklin (T, B. ). Some Simple Experiments 
on the Colloidal Content of Soils. {Title 
only), 401. 
Frobenius’, Note on a Theorem of, connected 
with Invariant-Factors, by Sir T. Muir, 
342-347. 
George Heriot’s Trust, Representative on, 406. 
Gray (J.). See J. G. Gray. 
Gray (J. G. ), and J. Gray. On the Applica- 
tion of the Gyroscope to the Solution of the 
“Vertical” Problem on Aircraft, 257-317. 
Gunning Victoria Jubilee Prize. See Prizes. 
Gyroscope: on its Application to the “Verti- 
cal” Problem on Aircraft, by J. G. Gray and 
J. Gray, 257-317. 
Harrison (J.), Obituary Notice of, 391. 
Hill (A.), Obituary Notice of, 391. 
Honorary Fellows, deceased 1921-22, 447. 
List of, 445. 
Houstoun (R A.). A New Method of investi- 
gating Colour Blindness, with a Description 
of Twenty-three Cases, 75-88. 
Note on Professor Whittaker’s Quantum 
Mechanism in the Atom, 221-222. 
Hydrogen, Quantum Theory of the Secondary 
Spectrum of, by J. Marshall, 247-256. 
Ince (E. L.). On the Connexion between Linear 
Differential Systems and Integral Equations, 
43-53. 
Index of Papers published in Transactions 
in 1921-22, 464. 
Inhibition, by W. Peddie, 319-320. 
Innes (R. T. A.). Elliptic Expansions (Abstract), 
318. 
Integral Equations and Linear Differential 
Systems, by E. L. Ince, 43-53. 
Invariant - Factors, Note on a Theorem of 
Frobenius’ connected with, by Sir T. Muir, 
342-347. 
Invariants, Differential, of Quadratic Differen- 
tial Forms in Four Variables, by A. R. 
Forsyth, 147-212. 
James (A.). Obituary Notice of Sir J. 0. 
Affleck, 376-379. 
Jehu(T. J.). Observations on the Geology of 
Iona. {Title only), im. 
Jehu (T. J.). Delegate at Geological Congress 
at Brussels, 405. 
Johnston (Hon. Lord). Obituary Notice of 
Sir J. Rankine, 371-375. 
Kapteyn (J. C. ), Obituary Notice of, by R, A. 
Sampson, 369-370. 
Keith Prize to Professor R. A. Sampson, 403, 
404, 405, 412. 
Knott (C. G. ). Notes on a Correspondence 
between the French Academy of Sciences and 
the R.S. E. regarding the Invention of the 
Pilot Cable (Cable Guide), 348-351. 
Biographical Notice of the late Win. 
Gordon Brown, 225-246. 
Laurie (A. P.). Chemical Combination and 
Sir Alfred Ewing’s Magnetic Atom, 352-361. 
Laws, 454. 
Leader System for Ships, Notes on a Corre- 
spondence between the French Academy of 
Sciences and the R.S.E. regarding the Inven- 
tion of the, by C. G. Knott, 348-351. 
Library, Additions to, 448. 
Hours of Opening, 405. 
Lippman (G. C. ), Obituary Notice of, 392. 
MacRobert (T. M. ). The Asymptotic Expansion 
of the Conffuent Hypergeoraetric Function, 
and a Fourier-Bessel Expansion, 89-96. 
Magnetic Atom, Chemical Combination and Sir 
A. Ewing’s, by A. P. Laurie, 352-361. 
Magnetic Character of the Quantum, by H. S. 
Allen, 213-220. 
Makdougall-Brisbane Prize. See Prizes. 
Marshall (J. ). Quantum Theory of the 
Secondary Spectrum of Hydrogen, 247-256. 
Meakins (J. C. ). Address. {Title only), ^0'^. 
Meetings of the Society, Proceedings of Ordinary, 
401. 
Proceedings of Statutory, 399, 405. 
Membership, Junior Grade of, 405. 
Mesopotamia, Myriapods from, by H. W. 
Brolemann, 54-74. 
Mill (H. R. ). Obituary Notice of H. N. 
Dickson, 386-389. 
Models of Ferromagnetic Action, by Sir J. A. 
Ewing, 97-128. 
Moray Fund, Thanks to, 405. 
Muir (Sir T. ). Note on a Theorem of Frobenius’ 
connected with Invariant- Factors, 342-347. 
Myriapods from Mesopotamia and N.W. Persia, 
by H. W. Brolemann, 54-74. 
Nathorst (A. G.), Obituary Notice of, 393. 
Neill Prize to Sir E. A. S. Schafer, 403, 404, 
405, 415. 
Norris (R. H. ), Obituary Notice of, 393. 
Obituary Notices : — Sir J, 0. Affleck, J. R. 
Appleyard, G. W. W. Barclay, W. S. Bruce, 
A. Cleghorn, W. Craig, H. N. Dickson, 
Rt. Hon. C. Scott Dickson, J. Harrison, 
A. Hill, J. C. Kaptevn, G. C. Lippman, 
A. G. Nathorst, R. H. Norris, Sir J. Rankine, 
J. Walker, and Sir G. Sims Woodhead, 
362-395. 
Opening of Rooms, 5-6.30 p.m., 405. 
Ordinary Meetings, Proceedings of, 401. 
