CONTENTS. 
PAGE 
1. On Tubes of Electromagnetic Force. By Professor E. T. Whittaker, F.B.S. 
Issued separately December 27, 1921, ...... 1 
2. On the Phenomenon of the “ Radiant Spectrum ” observed by Sir David 
Brewster. By C. V. Raman, M.A., Palit Professor of Physics in the Calcutta 
University. Communicated by Dr C. G. Knott, F.R.S., General Secretary. 
Issued separately December 27, 1921, . . . . . . 24 
3. Prehensility : a Factor of Gaseous Adsorption. By Professor Henry Briggs, 
D.Sc., Ph.D. Issued separately March 14, 1922, . . . .26 
4. Results obtained at the Physical Test Station, Edinburgh. By Professor Henry 
Briggs, D.Sc., Ph.D. Issued separately March 14, 1922, . . .34 
5. On the Connexion between Linear Differential Systems and Integral Equations. 
By E. L. Ince, D.Sc., Lecturer in Mathematics in the University of Liverpool. 
Communicated by Professor E. T. Whittaker, F.R.S. Issued separately 
March 24, 1922, ......... 43 
6. Myriapods collected in Mesopotamia and N.W. Persia by W. Edgar Evans, 
B.Sc., late Capt. R.A.M.C. By Henry W. Brolemann, Pan (France). 
Communicated by Wm. Evans, F.F.A, Issued separately March 24, 1922, . 54 
7. A New Method of investigating Colour Blindness, with a Description of Twenty- 
three Cases. By Dr R. A. Houstoun, Lecturer on Physical Optics in the 
University of Glasgow. Issued separately May 1, 1922, . . .75 
8. The Asymptotic Expansion of the Confluent Hypergeometric Function, and a ^ 
Fourier-Bessel Expansion. By Dr T. M. MacRobert, M.A. Issued separately 
May 1, 1922, ......... 89 
9. On Models of Ferromagnetic Induction. By Sir J. Alfred Ewing, K.C.B., 
F.R.S., Principal of the University of Edinburgh. (With Two Plates and 
Fifteen Figs, in Text.) Issued separately April 27, 1922, . . .97 
10. On the Quantum Mechanism in the Atom. By Professor E. T. Whittaker, 
F.R.S. Issued separately June 2, 1922, . . . . .129 
11. Note on Professor Whittaker’s Paper “On the Quantum Mechanism in the 
Atom.” By Sir J. Alfred Ewing, K.C.B., F.R.S. Issued separately June 6, 
1922, 
143 
