Xxvili 
Le Roy (Mr.), the Durango. Meteorite, 586 
Lead Poisoning and Water Supplies, on, Dr. Houston, 597 
Leaf Decay and Autumn Tints, Dr. P. Q. Keegan, 30 
Learned Societies, A. B. Basset, F.R.S., 437; Oliver 
Heaviside, F.R.S., 464; Prof. G. H. Bryan, F.R.S., 534 
Lebeau (P.), the Dissociation of Alkaline Carbonates, 239 
Leduc (Stéphane), Electrical Resistance of the Human 
Body, 96 
Lee (W. A.), Rocket Lighting, 22 
Leeds (F. H.), Acetylene, its Generation and Use, 122 
Lees (Dr. C. H.), Physics at the British Association, 
Corrections, 15 
Leigh (Geo. F.), Papilio dardanus, 407 
Leighton (G. R.), the Life-history of British Lizards and 
their Local Distribution in the British Islands, 490 
Leishman (Major), the Parasite of Kalaazar, 495 
Leith (Charles K.), the Mesabi Iron Bearing District of 
Minnesota, 116 
Lemoine (J.), Different Conditions of a Spark Fractionated 
by Blowing, 479 
Lemoult (P.), Calculation of the Heat of Combustion of 
Organic Acids, 24 
Lempfert (R. G. K.), the Great Dustfall of February, 166, 
587 
Lenard (Prof. P.), Phosphorescence of Photographic Plates, 
317 
Leonids : the November, 29, 521; W. F. Denning, 29, 57, 
446; John R. Henry, 80; Alphonso King, 105, 224; M. 
Fiévez, 446; M. Terby, 446; Radiant Point of the 1903 
Leonid Shower, 331; the Late Leonid Meteor Shower, 
W. H. Milligan, 127; William E. Rolston, 127; Observ- 
ations of Leonids and Bielids at Athens, M. Eginitis, 186 
Lepidoptera : Catalogue of the Lepidoptera Phalazenz in the 
British Museum, Sir George F. Hampson, Bart., 173; 
Papilio dardanus, 407 
Lépinay (J. Macé de), New Method of Measuring Thick- 
nesses and Refractive Indices, 192; on the Production ot 
the n-rays by Sound Vibrations, 287; the Objective 
Action of the n-Rays on Luminous Calcium Sulphide, 552 
Lépine (R.), the Virtual Sugar of the Blood, 47; Action of 
the X-rays upon Animal Tissues, 287; Glycuronic Acid in 
the Blood, 479 
Leprosy, the ‘* Fish Hypothesis ’’ and the Transmission of, 
Jonathan Hutchinson, F.R.S., 395; Prof. R. T. Hewlett, 
395; Dr. John Knott, 442 
Lespagnol (M. G.), Géographie Générale, 246 
Lespieau (M.), y-Chloroacetoacetic Ester, 408 
Lettering, Freehand, being a Treatise on Plain Lettering 
from the Practical Standpoint for Use in Engineering 
Schools and Colleges, Victor T. Wilson, 411 
Letts (Prof.), on the Occurrence of Ulva. latissima and 
Enteromorpha compressa in Sewage Effluents and on 
Variations in the Composition of the Tissues of these and 
Allied Seaweeds, 19 
Levaditi (C.), Origin of Precipitines, 576 
Levinstein (Ivan), Patent Laws, 514 
Leyden, the Physical Laboratory at, H. H. F. Hyndman, 
ste) 
Lick Observatery, Meridian-circle Observations at the, 
Richard H. Tucker, 378 
Life in Mind and Conduct: Studies of Organic in Human 
Nature, Henry Maudsley, 102 
Light: Intensity of the Sun’s Light, Ch. Fabry, 234; 
Light Economy in Spectrum Photography, J. A. 
Humphreys, 234; the Use of Light and Other Radiations 
in the Treatment of Disease, 535 
Light-changes of « Aurigee, H. Ludendorff, 305 
Light-waves and their Uses, A. A. Michelson, 50 
Lighting: the New Osmium Lamps, Prof. F. G. Baily, 
3973 Results of Tests on the Different Lamps Employed 
in Street Lighting, J. W. Bradley, 493 
Lightning : Rocket, Prof. J. D. Everett, F.R.S., 30, 224, 
375; W. A. Lee, 224; Explosive Action of Lightning, 
R. A. West, 31; the Spectrum of Lightning, Philip Fox, 
137; 001. W. J. S. Lockyer 137 
Lillie (Ralph S.), Cells-and Cell-nuclei Suspended in Cane- 
sugar Solution through which an Electric Current is 
Passed Migrate in Some Cases with the Negative, in 
Others with Positive Stream, 183; Nuclear Division 
without Cell Division, 232 
Lincolnshire Garden, Notes from a, 126 
Index 
Nature, 
June 9, 1904 
| 
| Lindeck (St.), the Permanence of Resistance Standards of 
| Manganese, 13 
Lindemann (A. F.), a New Form of. Equatorial Mounting, 
521 
Line Complex, a Treatise on the, C. M. Jessop, 27 
Line Spectra of the Alkaline Metals, the, H. Konen and 
A. Hagenbach, 137 
Ling (A. R.), Action of Malt Diastase on Potato Starch 
Paste, 165 
Linnean Society, 119, 142, 166, 286, 359, 430, 454, 479, 
527, 598 
Linnean Society, New South Wales, 168, 288 
Lipskiy (V. I.), the Highlands of Bukhara, Part ii., Hissar, 
the Range of Peter the Great, and the Alai, 341 
Liquid Fuel and its Combustion, W. H. Booth, 196 
Liveing (Prof., F.R.S.), Differences Between the Spectra 
at Anode and Kathode in Certain Gases, 382 
Lizards, the Life-history of British, and their Local Distri- 
bution in the British Islands, G. R. Leighton, 490 
Lob (Mr.), the Kathode Potential the Essential Factor in 
the Electrolytic Reduction of Nitro-compounds, 520 
Local Government Board, Medical Report of the, Prof. 
R. T. Hewlett, 155 
Loch Ness, Internal Oscillation in the Waters of, E. R. 
Watson, 174 
Lochs of Scotland, Bathymetrical Survey of the Freshwater, 
Sir John Murray, K.C.B., F.R.S., and Laurence Pullar, 
546 
Lockyer (Sir J. Norman, K.C.B., F.R.S.), Simultaneous 
Solar and Terrestrial Changes, 351 
Lockyer (Dr. William J. S.), Magnetic Storms, Aurore and 
Solar Phenomena, 9; Correspondence of Magnetic Storms 
with Solar Prominences, 95; the Spectrum of Lightning, 
137; Sun-spot Variation in Latitude, 1861-1902, 447; a 
New Epoch in Solar Physics, 608 
Locomotion: Road. Traction a Propulsion Continue, Charles 
Renard, 239 
Lodge (Sir Oliver J., F.R.S.), Means for Electrifying the 
Atmosphere, 94; Dissipation of Fog by Electrification, 
94, 135; Projection of Imitation Spinthariscope Appear- 
ance, 247; Atmospheric Electricity, 294 
Loeb (Prof.), Fertilisation of the Egg of the Sea-urchin by 
the Sperm of the Star-fish, 566 
Loescher (Fritz), Die Bildnis-Photographie, 460 
Logarithms, Base of Napier’s, Adolfo Bossetti, 
G. B. M., 582 
Loisel (J.), the Climatology of 1903, 378 
Lomas (J.), Nature-study, 282 
London, the New Education Authority for, 344, 420 
Long (William J.), a Little Brother to the Bear and Other 
Animal Studies, 176 
Lough Neagh, Strange Winter Scenes Connected with, 
W. S. Smith, 343 
Lounsbury (C. P.), the South African Sheep and Goat 
Disease, ‘‘ Heartwater,’’ 91 
Love (Prof. A. E. H.), the Propagation of Wave-motion in 
an Isotropic Elastic Solid Medium, 71; Illustrations of 
Modes of Decay of Vibratory Motions, 479 
Lowell (Percival), the Formation of the Polar Caps on 
Mars, 16; Observed Changes on the Surface of Mars, 
399; Observations of Venus during 1903, 424; Variations 
of the Martian Canals, 496 
Lubrication, Cavitation in, S. Skinner, 118 
Lucas (A.), Soil and Water of the Wadi Tumilat Lands, 
258 
Lucas (E. V.), Highways and Byways in Sussex, 580 
Lucas (Keith), a Microscope with Geometric Slides, 453 
Ludendorff (H.), Light Changes of e« Aurigze, 305 
Luizet (M.), New Elements for n Aquilz, 113 
Lukacs (Ch.), Observations of Jupiter, 90 
Lull (R. S.), Adaptive Modifications of Mammals, 566 
Lummer (O.), Notes in Elucidation of the Most Recent 
Researches of R. Blondlot on the n-Rays, Paper read at 
the German Physical Society, 37 
“TLuna’’ Printing-out Paper, the, Messrs. Lucien Allégre 
and Co., 397 ; 
Lunge (George), a Theoretical and Practical Treatise on 
the Manufacture of Sulphuric Acid and Alkali with the 
Collateral Branches, 169 
Liipke (Hans von), Tat und Wahrheit, Eine Grundfrage 
der Geisteswissenschaft, 482 
582); 
