XXVIil Index Nature, 
October 24, 1912 
a 
Manganese in the Animal Kingdom, G. Bertrand and F. 
Medigreceanu, 365, 495; Manganese in Plants, F. Jadin 
and A. Astruc, 626 
Maps: Comparison of German Atlases, Prof. Penck, 14; 
' Philips’ Comparative Series of Wall Atlases: Europe, 267 
Mars: Mars and a Lunar Atmosphere, C. T. Whitmell, 6; 
“the Writer of the Note,” 62; Brilliant Spots on Mars, 
L. J. Wilson, 17; Axis and Compression, Dr. Struve, 121 
Marsupials : Ccenolestes, Dr. R. Broom, 67 
Mathematicians, International Congress at Cambridge in 
August, 300, 636 
Mathematics : ‘ 
General: the Teaching of Mathematics, Prof. H. S. 
Carslaw, 6; Teaching of Mathematics: Board of 
Education Reports, D. B. Mair, 45; Board of Educa- 
tion Papers, D. B. Mair, 305; Need for Periodic Sum- 
mary of Literature, 68; Practical Mathematics and 
Geometry, E. Bates and F. Charlesworth, 240; M. 
Poincaré’s Lectures at the University of London, 279 ; 
Monographs on Topics of Modern Mathematics Rele- 
vant to the Elementary Field,. edited by J. W. A. 
Young, 395; Principia Mathematica, Dr. A. N. White- 
head, F.R.S., and Bertrand Russell, 474; Junior 
Mathematics, D. B. Mair, 655 
Algebra: Elements of the Theory of Algebraic Numbers, 
Prof. L. W. Reid, 164; Algebra for Beginners, C. 
Godfrey, M.V.O., and A. W. Siddons, 602; a School 
Algebra, H. S. Hall, 602 
Arithmetic: Examples in Arithmetic, H. S. Hall and 
F. H. Stevens, 602; Macmillan’s Reform Arithmetic, 
P. Wilkinson and F. W. Cook, 655 
Calculus for Beginners, the, W. M. Baker, 602 
Curves: “J. R. B.” Patent Adjustable Curve Ruler, 477; 
Convex Closed Curves, &c., C. Jordan and R. Fiedler, 
669 
Economic Dynamics, Mathematical Theory of, Dr. L. 
Amoroso, 92 
Equations, Resultant of a Set of Homogeneous Lineo- 
linear, T. Muir, 287 
Geometry: Bibliography of Non-Euclidean Geometry, Dr. 
D. M. J. Sommerville, 266; Geometry for Schools, 
W. G. Borchardt and Rev. A. D. Perrott, 602, 655; 
Elementary Treatise on Cross-ratio Geometry, Rev. 
J. J. Milne, 655; Junior Mathematics, D. B. Mair, 
655; Poliedri, Curve e Superficie secondo i Metodi della 
Geometria Descrittiva, Prof. Gino Loria, 655 
Integral Equations: Introduction a la Théorie des 
Equations Intégrales, Prof. T. Lalesco, 499; Equation 
de Fredholm et ses applications, Profs. Heywood and 
Fréchet, 499 
Mersenne’s Numbers, W. W: Rouse Ball, 86 
Network Problems by Determinants, Solution of, R. 
Appleyard, 286 
Quaternions, International Association for Promoting 
Study of, 588 
Riemann Integral and Measurable Sets, J. Conran, 260 
Russian Peasant Method of Multiplication, Prof. J. 
Bowden, 431 
Trigonometry: Plane Trigonometry, Prof. L. K. Ghosh, 
655; Elements of Plane and Spherical Trigonometry, 
J. G. Hun and C. R. MacInnes, 655; Elementary 
Trigonometry, F. T. Swanwick, 655 
Mathematics, Chinese, Early History, Prof. D. E. Smith, 
85 
ME eratics: “Indian,” Medizeval References to, G. R. 
Kaye, 132 
Matter, Foundations of a Theory of, Prof. Mie, 485 
Measles, Bodies in Blood of Children infected with, Prof. 
Hlava, 306 
Mechanical Engineering, see Engineering 
Mechanical Science: Changes in Dimensions of a Steel 
Wire when Twisted and Pressure of Distortional Waves 
in Steel, Prof. J. H. Poynting, 103; Flexure of Cylin- 
drical Tubes of small Thickness, Dr. Th. von Karman, 
145; Theory of a New Form of the Chamber Crank 
Chain, H. S. Hele-Shaw, 363; Realisation of Uniform 
Circular Movement by Periodic Synchronising Action, 
A. Guillet, 625 
Mechanics: Torsional Oscillations of Magnesium Wire, 
G. P. Seamon, 53; General Dynamics, Prof. Andrew 
Gray, 78; Arrangements for Measurement of Densities 
of Solids of Volume 1 to 3 c.c., J. Escard, 104; Com- 
plete Formal Solution of the Equations of Stress, R. F. 
Gwyther, 131; Stresses in Spherical Shells, Dr. H. 
Reissner, 642; Analytical Mechanics, Prof. E. H. Barton, 
655; Elementary Graphic Statics, Dr. W. J. Crawford, 
655; see also Vibrations 
Medical Association, British, 429, 566 
Medical Science : Report of the Wellcome Tropical Research 
Laboratories, 10; Post Mortems and Morbid Anatomiy, 
Dr. T. Shennan, 477; Multiple Neuroma of the Central 
Nervous System, Drs. A. Bruce and J. W. Lawson, 
547; Recent Methods in Diagnosis and Treatment of 
Syphilis, Dr. C. H. Browning and I. Mackenzie, and 
others, 575; Scientific Features of Modern Medicine, 
Prof. Fred. S. Lee, 575; Prevention and Treatment of 
Disease in the Tropics, E. S. Crispin, 575; the Doctor 
and the People, H. de C. Woodcock, 575; the Nervous 
System, J. D. Lickley, 575 
Memory and its Duration in Marine Fishes, M. Oxner, 79; 
Experiments on Memory in a Marine Fish, Serranus 
scriba, M. Oxner, 131 
Mendelism: Influence of Selection and Assortative Mating 
on the Ancestral and Fraternal Correlations of a Men- 
delian Population, E. C. Snow, 130; Mendelism, Prof. 
R. C. Punnett, 215 
Mental Defect: the Feeble-minded, C. G. Crosley, 40; 
Government Bill, 300, 325 ; Mental Defect and Alcoholism, 
D. Heron, -563 
Mercury: Expansion, Drs. Scheel and Heuse, 69; Ap- 
paratus for Rapid Distillation of Mercury in a Vacuum, 
L. Dunoyer, 339; Ayurvedic Method of Purifying Mercury 
by Garlic Juice, H. N. Banerjee, 495 
Merlia normani and its Relation to certain Palaeozoic 
Fossils, R. Kirkpatrick, 502 
Metallurgy: Quick Combination Methods in Smelter 
Assays, 52; the Metastable Condition of Undercooling in 
Metals, F. E. E. Lamplough, 208; Separation of Iron 
and Titanium, F. Bourion, 313; Exhibition of Non- 
ferrous Metals, 404; Purifying Mercury by Garlic Juice, 
H. N. Banerjee, 495; Heat Treatment of Tool Steel, 
H. Brearley, F. W. Harbord, 501; Disintegration of 
Metals at High Temperatures, MM. Reboul and 
Grégoire, 643; Dr. J. H. T. Roberts, 660 
Meteorites: Analysis of Meteorites, O. C. Farrington, 94; 
Meteorites and Moldavites, F. Berwerth, G. P. Merrill, 
513; a Second Meteorite Find in Scott Co., Kansas, J. T. 
Freed, G. Merrill, 541 
Meteorological Charts: Meteorological Chart of N. Atlantic 
for May, 249; Monthly Wind Directions over the N. 
Indian Ocean, W. E. Hurd, 540 e 
Meteorological Elements from Kew, Eskdalemuir, &c., 198 
Meteorological Instruments: New Type of Instrument for 
continuously recording Direction of Wind, Messrs. 
Negretti and Zambra, 120; Automatic Release of Self- 
recording Instruments from Ballons-sondes, E. S. Bruce, 
338 
Meteorological Observations: Value of Non-instrumental 
Weather Observations, Prof. R. De C. Ward, 92; Reports 
upon Observations, 202; Meteorological Observations at 
Cardiff, Dr. E. Walford, 303; Meteorological Observa- 
tions required, D. Stenquist, 380; German Oversea 
Observations, 642; Egypt: Survey Department Report, 
668 
Meteorological Observatories: Report of the Prussian 
Meteorological Institute, Prof. G. Hellmann, 174; Blue 
Hill bequeathed, 223; Meteorological Service of Argen- 
tine Republic, Sir W. G. Davis, 226; Norwegian 
Meteorological Institute, 588; Meteorological Office and 
its Observatories, 591; Messina Observatory, 642 
Meteorology : 
General: British Weather, 14, 68, 117, 332, 353, 404, 
640, 665; Weather of 1911, L. G. Schultz, 33 ; Weather 
of rgrr and Ultra-violet Radiation of the Sun, Dr. 
Carl Ramsauer, 376; Compagne Arctique de 1907; 
Duc d’Orléans, M. de Gerlache, Prof. Herdman, 
F.R.S., 107; Climate of Rome, 145; Cycles of the Sun 
and Weather, Prof. R. A. Gregory, 147; Indian 
Weather Review for 1910, 198; Tripoli and Benghazi 
Climatology, Dr. Eredia, 198; Our Weather, J. S. 
Fowler and W. Marriott, 267: Wind and Weather, in 
the Adriatic,, Prof. E. Mazelle, 540; Recent Weather, 
