352 Index 



Haviland, M. D., Preliminary Note on the Life History of Lygocerus (Procto- 



trypidae), hyperparasite of Aphidius, 293, 

 Hill, M. J. M., On the Fifth Book of Euclid's Elements (Foui'th Paper). See 



Transactions, xxn. 

 Horn, see Van Horn. 



Hydrodynamics of Relativity (Weatherburn), 72. 

 Hydrogen Ion Concentration (Saunders), 315. 



Identities in combinatory analysis (Rogers and Ramanitjan), 211. 



Ince, E. Lindsay, Elected Fellow 1918, February 18, 189. 



Intensity along the positive ray parabolas of atoms and molecules of hydi'ogen 



(Aston), 317. 

 Ion, Hydrogen, Concentration (Saunders), 315. 

 Ions, Effect of, on Ciliary Motion (Gray), 313. 



JoLLiFFE, A. E., On certain Trigonometrical Series which have a Necessary 



and Sufficient Condition for Uniform Convergence, 191. 

 Jones, W. Morris, Elected Associate 1916, October 30, 126. 1 



KiENAST, A., Extensions of Abel's Theorem and its converses, 129. 



Lake, P., Glacial Phenomena near Bangor, North Wales, 127. 



Shell-deposits formed by the flood of January, 1918, 157. 



Larmor, J., Gravitation and Light, 324. 



Liquid, Viscous, pressiire in a (Harrison), 307. 



LiTTLEWOOD, J. E., see Hardy, G. H. 



Logic, Primitive Propositions of (Nicod), 32. 



Logic, Symbolic, an axiom in (Van Horn), 22. 



Lygocerus (Proctotrypidae), hyperparasite of Aphidius, Life History of 



(Haviland), 293. 

 Lynch, R. I., Elected Fellow 1916, November 13, 126. 



Exhibition of the Fruit of Chocho Sechium edule, 127. 



Mackenzie, K. J. J., see Marshall, F. H. A. 



MacMahon, p. a., On certain integral equations, 188. 



MacMahon, p. a., and Darling, H. B. C, Reciprocal Relations in the Theory 



of Integral Equations, 178. 

 Madreporarian Skeleton (Matthai), 160. 

 Marr, J. E., Submergence and glacial cUmates during the accumulation of the 



Cambridgeshire Pleistocene Deposits, 64. 

 Marshall, F. H. A., and Mackenzie, K. J. J., On extra mammary glands and 



the reabsorption of milk sugar, 127. 

 Matthai, G., Is the Madreporarian Skeleton an Extraprotoplasmic Secretion 



of the Polyps?, 160. 



On Reactions to Stimuli in Corals, 164. 



Micro-voltameter (Wilson), 345. 



