iv INDEX TO VOL. XIII 



PAGE 



Game-Birds and its Relation to Agriculture, The Preservation of. W. E. 



Collinge 265 



Geology. G. W. Tyrrell 30, 208, 372, 549 



Geophysics in Great Britain, The Future of. H. S. J 107 



Health Conscription 632 



History of Science, The Teaching of the ....... 634 



Housing Schemes, Dry-Rot in Government. Lord Leverhulme . . . 657 



Ice-Age Question Solved, The. R. A. Marriott 586 



Library, A National Science. R. E. Slade . . . . . . .621 



Maternity and Child Welfare. T. N. Kelynack . 



Mathematical Amoeba, The. R. R 



Mathematics. P. E. B. Jourdain . . . /. . 



Mathematics, Applied. S. Brodetsky .... 

 Mathematics in an Encyclopaedia. P. E. B. Jourdain 

 Mechanism and Vitalism. J. C. Gregory 

 Mineralogy and Crystallography. A. Scott. 



. 487 

 . 638 



i» x 76, 345, 520 



. 182 



. 648 



• 134 



38, 379 



Notes and News. D. Orson Wood 117,279,458,640 



Operative Algebra. Sir R. Ross 288 



Palaeobotanical Papers 457 



Paleobotany in 1917. Marie C. Stopes ....... 225 



Palaeontology. W. P. Pycraft , . . 240 



Pedler, The late Sir Alexander ......... 97 



Philosophy. H. Elliot 173, 517 



Physics. J. Rice 20, 199, 362, 535 



Plant Physiology. V. H. Blackman 49, 393 



Plant Physiology. I. Jorgensen . . . . . . . . .221 



Plant Physiology. E. C. Knight . . . 561 



Problems of Arrangement of an Infinite Class. P. E. B. Jourdain . . 299 

 Public School Science Masters, The General Meeting of the Association 



of. C. L. Bryant 628 



Ramsay, Sir W. F. A. Mason ......... 319 



Relativity and Einstein's Theory of Gravitation, The General Theory of. 



G. W. de Tunzelman ... .... . 652 



Relativity Hypotheses Old and New, Physical. G. W. de Tunzelman . 475 



Rights against Duties 624 



Science and Industry. R. A. Gregory ...... 



Science and the International Language. E. B. R. and H. C. Prideaux 

 Science and the International Language. H. Whichello 

 Science in Education. E. H. Starling .... 



Seeds, The Electrification of. C. Mercier . 



Sheffield Association of Metallurgists. W. H. Hatfield 



Spiritualism, Modern. W. A. Slater .... 



State, Science, and Agriculture, The. G. W. Harris . 

 Supermagic Square, The 34. F. J. Anderson 



125 



445 

 623 

 466 

 482 

 275 



139 

 209 



86 



