Nature, ] 
June 9, 1904 
Luther (R.), Chemical Action of Réntgen Rays on Bromide- 
gelatin Photographic Plates, 256 5 
Luyties (Otto), Nebulosity Around Nova Persei, 589 
Lydekker (R., F.R.S.), a New Antelope (Cobus smithemani) 
in Northern Rhodesia, 206; Mostly Mammals, Zoological 
Essays, 554 
Lyman (Theodore), Preliminary Measurement of the Short 
Wave-lengths Discovered by Schumann, 465 
Lyndon (Lamar), Storage Battery Engineering, 78 
Lynn (W. T.), Periodical Comets due this Year, 282 
Lyons Observatory, Solar Observations at, during 1902 
J. Guillaume, 65 \ 
Maas (Prof. Otto), Einfiihrung 
Entwickelungsgeschichte, 241 
McAdie (A. G.), Climatology of California, 444 
McClelland (Prof. J. A.), the Ionisation of Atmospheric 
Air, 155; the Emanation given off by Radium, 383 ; Com- 
parison of Capacities in Electrical Work, 383 
: McClung (R. K.), Relative Amount of Ionisation Produced 
in Air and Hydrogen by Réntgen Rays, 383 ; Dependence 
of the Ionisation Produced by Réntgen Rays upon the 
Type of the Rays, 462 g 
Macdonald (H. M.), Electric Radiation from Conductors, 
in die Experimentelle 
311 
MacDougal (D. T.), Desert Botanical Laboratory of the 
Carnegie Institution, 569 . 
MacDowall (Alex. B.), Sunspots and Temperature, 607 
Macedonian Folklore, G. F. Abbott, 125 
McElfresh (W. E.), on the Influence of Occluded Hydrogen 
on the Electrical Resistance of Palladium, 398 — 
Macfadyen (Dr. Allan), Intra-Cellular Bacterial Toxins, 134 
Macfarlane (Alexander), Bibliography of Quaternions and 
Allied Systems of Mathematics, 604 
Machinery: Friction and its Reduction, G. U. Wheeler, 
339; a Treatise on Friction and Lost Work in Machinery 
and Mill-work, R. H. Thurston, 339 i 
McIntosh (D.), Conductivity of Substances Dissolved in 
Certain Liquefied Gases, 95 
McIntyre (J. Lewis), Giordano Bruno, 505 
McKendrick (Prof. John G.), the Blondlot or n-Rays, 534 
Mackinder (H. J.), Nature-study, 282 | 
McLachlan (J.), the Reactions of Hydrogen Peroxide, 94 
McLachlan (Mr., F.R.S.), Immigration of Insects from the 
Continental Coasts, 191 
McLeod (Prof. Herbert, F.R.S.), Subjective Images, 297; 
Notes on the History of the Metrical Measures and 
Weights, 425 
Macleod (W. A.), Metallurgical Analysis and Assaying, 459 
Macleod (Mr.), Chemical Constitution of the Tubercle 
Bacillus, 470-471 
Macloskie (G.), Botany of Patagonia, 253 
McMahon (Lieut.-General Charles Alexander, F.R.S.), 
Obituary Notice of, 419 
MeMillan (W. G.), Death of, 326; Obituary Notice of, 347 
McNeal (W. J.), Trypanosome Parasite of the Rat T. 
Lewisi, 63 
McWeeney (Prof. E. J.), Distribution of Bacillus coli com- 
munis, Bacillus enteritidis sporogenes, and Streptococci 
in Shell-fish, Sand, and Sea-water from Irish Littoral, 
455 . 
Maffucci (Prof. Angelo), Death of, 255; Obituary Notice of, 
rs 
37 
Maggi (Gian Antonio), Principii di Stereodinamica, 151 
Magnetism: Magnetism of Basalt and the Magnetic Be- |. 
haviour of Basaltic Bars when Heated in Air, Dr. G. E. 
Allen, 23; Magnetic Expansion of the Less Magnetic 
Metals, P. E. Shaw, 47; on the Expression of the 
Electromagnetic Field by Means of Two Scalar Potential 
Functions, E. T. Whittaker, 71; the Suppression of 
Magnetic Hysteresis by the Action of an Oscillating 
Magnetic Field, Ch. Maurain, 143; P. Duhem, 191; 
Electricity and Magnetism, R. T. Glazebrook, F.R.S., 
148; Influence of a Magnetic Field on a Tuning 
Fork, O. Kirstein, 158; on the Stability of the 
Direction of Magnetisation in Some Volcanic Rocks, 
Pierre David, 263; Magnetic Effect of Convection Cur- 
rents, C. Gutton, 383; Relation which Exists Between 
Sudden Variations of the Reluctance of a Magnetised 
Steel Bar Submitted to Traction and the Formation of 
Index 
XXIX 
Liiders’s Lines, L. Fraichet, 384; a Quartz-thread Ver- 
tical Force Magnetograph, Dr. W. Watson, 454; Stresses 
ina Magnetostatic Field, G. W. Walker, 454; Magnetic 
Rotation of Plane of Polarisation of the n-Rays, H. 
Bagard, 455; Action of Magnetic Fields on Phosphor- 
escent Substances, C. Gutton, 455; General Law of 
Magnetofriction, H. Pellat, 479; Demonstration of 
Magnetostriction by Means of Capillary Ripples, Prof. 
H. Nagaoka, 487; Demonstration of Magnetostriction, 
Prof. W. L. Franklin, 581; Methods of Reduction of 
Magnetic Hysteresis, Ch. Moureu, 528; Action of 
Magnetism on Phosphorescence, Alex. de Hemptinne, 
528; Terrestrial Magnetism: Solar and Magnetic Dis- 
turbances, Dr. Charles Chree, F.R.S., 6; Prof. A. 
Fowler, 6; Magnetic Storms, Aurore and Solar Pheno- 
mena, Dr. William J. S. Lockyer, 9; Telegraphic Dis- 
turbances in Spain on October 31, Prof. Augusto 
Arcimis, 29; Magnetic Storm of October 31, Th. 
Moureaux, 48; Em. Marchand, 96; Magnetic Storm, 
October 31, at Falmouth, E. Kitto, 62; the Magnetic 
Storm of October 31, Superintendent, Observatory De- 
partment, National Physical Laboratory, 56; Magnetic 
Disturbances and Sun-spots,. F. Quénisset, 72; Solar 
Phenomena and Magnetic Storms, M. Quénisset, 90; 
Correspondence of Magnetic Storms with Solar Pro- 
minences, Dr. Lockyer, 95; Atlas der Erdmagnetismus 
fiir die Epochen 1600, 1700, 1780, 1842, and 1915, Dr. 
H. Fritsche, 268; Erdmagnetismus, Erdstrom und Polar- 
licht, Dr. Nippoldt, 341; the Relationship Between Sun- 
spot Frequency and: Terrestrial Magnetism, C. Chree, 
F.R.S., 525; Possible Connection of Diurnal Variation 
of Terrestrial Magnetism with Meteorology, A. S. Steen, 
540; Department of International Research in Terrestrial 
Magnetism of the Carnegie Institution, Dr. L.. A. Bauer, 
580 
Mailhe (Alph.), the Direct Reduction of Aromatic Halogen 
Derivatives by Finely Divided Nickel and Hydrogen, 359 ; 
Action of Reduced Nickel in the Presence of Hydrogen 
on Halogen Derivatives of the Fatty Series, 407 ; Method 
for Reduction of Aromatic Halogen Derivatives, 424 
Malaria: Malaria in India and the Colonies, Major Ronald 
Ross, 34; Mosquitoes and Malaria Sickness, 327; Mos- 
quitoes and Malaria in Ismailia, Prof. Boyce, 471; the 
First Report of the Anti-Malarial Operations at Mian- 
Mir, 1901-1903, Capt. S. P. James, Prof. R. T. Hewlett, 
67 i 4 
Malay Archipelago, New Work in the, Prof. K. Martin, 
Prof. Grenville A. J. Cole, 457 i 
Malav Fauna, the, N. Annandale and H. Cc. Robinson, 530 
Malessere Agrario ed Alimentare in Italia, Italo Giglioli, 
22 ; 
Mallock (A., F.R.S.), Resistance to Heat of B. anthracis, 
8 
Mepinaber Patagonian ‘* Diprotodont ” Mammals, F. 
Ameghino, 137; British Mammals, an Attempt to Describe 
and Illustrate the Mammalian Fauna of the British 
Islands from the Commencement of the Pleistocene Period 
to the Present Day, Sir H. Johnston, 193; Mammalia of 
the Santa Cruz Beds, and the Princeton Expedition to 
Patagonia, W. B. Scott, 253; Mostly Mammals, Zoo- 
logical Essays, R. Lydekker, 554; Adaptive Modifications 
of Mammals, R. S. Lull, 566 : 
Man, Nutrition and Sex Determination in, R. C. Punnett, 
Tees Place in the Universe, Alfred R. Wallace, Bese, 
8 
Moacent (Emile), the Chemical Characters of Wine 
Arising from Vines which are Attacked by Mildew, 168 
Manchester Literary and Philosophical Society, 143, 167, 
263, 599; Wilde Lecture Delivered by F. Soddy before 
the, 418 f 
Manchester School of Technology, Engineering Equipment 
of the, Prof. John T. Nicolson, 79 
Mann (H. H.), the Pests and Blights of the Tea Plant, 580 
Mann (L. M.), Prehistoric Pile-structures in Pits, 541 
Maquenne (L.), Isoglucosamine, 24; the Retrogradation of 
Starch, 96; Ricinine, 431 : : 
Marage (Dr.), the Artificial Development of Hearing in 
Deaf Mute Subjects, 205 Me 
Marchal (M.), the Sources of Nitrogen to; Plants, 162 
