144 
NATURE 
[JUNE 5, 1902 
induction in some dissociation spectra, by M. A. de’ Gramont. 
A continuation of previous researches on the same subject. ‘The 
changes in the spectra brought about by changes in the self- 
induction of the spark circuit are studied in the cases of arsenic, 
antimony, graphite, silicon, germanium and _thallium.—The 
employment of urine in the development of the photographic 
plate, by M. R. A. Reiss. Urine has a slight reducing action 
upon the photographic plate and may replace water in the de- 
veloping solutions.—On the température of maximum density 
and the electric conductivity of some Solutions of .barium bro- 
mide and iodide, and calcium chloride, bromide and iodide, by 
MM. L. V. de Coppet and W. Muller.—On some _ physical 
properties of hydrogen telluride, by MM. de Forcrand and 
Fonzes-Diacon. A mixture of hydrogen and hydrogen telluride 
was prepared by the action of acids upon aluminium telluride, 
and this mixture passed through tubes cooled to — 55°C. Pure 
hydrogen telluride separated out in the solid state, allowing of 
correct determinations of its melting and boiling points and 
molecular volume.—The preparation and properties of the 
chloro-, bromo- and iodo-sulphobismuthites of copper, by .M. 
Fernand Ducatte.—On the alkaline cobaltioxalates, by M. 
Copaux. —On the constitution of the ammoniacal copper salts, 
by M. Bouzat. From a study of the amounts of heat developed 
in the reaction between solutions of ammonia and copper salts 
the author concludes that the ammoniacal compounds of copper 
ought to be considered as salts of complex bases.—On /: p- 
dinitrohydrazobenzene, by MM. P. Freundler and L. Beranger. 
—On the thiosulphocarbamic esters. derived from primary 
amines, by M. Marcel Delépine.— The electrical. re- 
sistance of metallic sulphides, by M. J. Guinchant. The 
resistance of the sulphides of iron, tin and lead was measured at 
varying temperatures. “The resistance was generally a linear 
function of the temperature up to 100°C. The resistance of 
lead sulphide increased with the temperature, that of the sul- 
phides of tin and iron decreased. The sign of the temperature 
coefficient would appear to depend upon the magnitude of the 
specific resistance, or of the causes which determine it, and not 
upon accessory phenomena, such as electrolysis, which accom- 
pany the passage of the current. The differentiation of solids 
into electrolytes and non-electrolytes according to the sign of 
this coefficient would thus appear to be unjustifiable.—The 
synthesis of aldehydes of the fatty series with the aid of nitro- 
methane, by MM. L. Bouveault and A. Wahl (see p. 137). —The 
mechanism of the chemical variations in the plant when under the 
influence of sodium nitrate, by MM. E. Charabot and A. Hébert. 
Sodium nitrate behaves like the chloride in favouring esterifica- 
tion and reducing the percentage of water.—The composition 
and volumetric estimation of sodium methylarsenate, by MM. 
Adrian and Trillat.—Growth and auto-intoxication, by M. 
Frederic Houssay,—On the formation of the egg, maturation 
and fertilisation of the oocyte in Déstomum hepaticum, by 
M. L. F. Henneguy.—On a new gigantic Pyrosome, by MM. 
Jules Bonnier and Charles Perez.—The modes of action and 
mature of the secretions of a pathogenic microbe, by MM. 
.Charrin and Guillemonat.—Contribution to the study of life in 
seeds, by M. L. Maquenne.—The volcanic rocks of Martinique, 
by M. A. Lacroix.—The biochemical action of extract of 
_kidney on certain organic compounds, by M. E. Gerard. The 
aqueous extract of the kidney of the horse, from which all 
cellular elements have been removed, is capable of hydrolysing 
glycogen, guaiacol, oxaluric acid and lactose. —On a comparison 
of the action of cold and anesthetics on nutrition and repro- 
duction, by M. Raphael Dubois.—The disease of young dogs. 
Statistics of the vaccinations practised from May 15, 1901, to 
May 15, 1902, by M. C. Phisalix.—On the existence of lipase 
in the blood, by MM. Maurice Doyon and Albert Morel.— 
Experimental researches on the action of compression on the 
respiratory exchanges in man, by M. J. Tissot. 
THURSDAY, Jone 5. 
Rovatr. Sociery, at 4.—Election of Fellows.—At 4.30.—On the Movements 7+ 
of the Flame in the Explosion of Gases: Prof. H. B. Dixon, F R.S.— 
Contributions to the Study of Flicker. Paper JI.: T. C. Porter.— 
Effects of Strain on the Crystalline Structure of Lead: J. C. W. Humfrey. 
The Spectra of Potassium, Rubidium, and Casium, and their Mutual 
ations: H. Ramage.—On Some Definite Integrals and a New Method 
of reducing a Function of Spherical Co-ordinates to a Series of Spherical 
Harmonics: Prof. A. Schuster. : 1 
Cuemicat Society, at 8.—The Action of Ungermirated Barley Diastase 
on Starch. Part 1.: J. L. Baker.—The Decomposition of Chlorates. 
NO. 1701, VOL. 66] 
uae V. Potassium Chlorate in presence of Oxides of Manganese : W. H. 
Sodeau. : i p 
ROnTGeEN SocigtTy, at 8.30.—The Sources of Phosphorescence: 
Herbert Jackson. rae . 
Linnean Society, at 8.—On certain Species of Dischidia and their 
Double Pitchers: H. H. W. Pearson.—(1) On ‘‘Silver-leaf” Disease of 
Plums ; (2) Observation on the Occurrence of Crystals of Calcium 
Oxalate in Seedlings of Alsike (7rifolium hy 7.ium, Linn.): Prof. J. 
Percival.—On the Morphology of the Cerebral Commissures in the 
Vertebrata: Dr. Elliot Smith. 
FRIDAY, June 6. 5 ss 
Rovat Institution, atg.—The Nile Reservoir and Dams: Sir Benjamin 
Baker, K.C.M.G., F.R.S. Z 
GEOLoGIsTs’ AssociaTION, at 8.—On a Peculiarity in the Course of 
Certain Streams in the London and Hampshire Basins: H.. J. Osborne 
White.—Note on the Occurrence of Mzcrotus intermedius in the 
Pleistocene Deposits of the Thames Valley: M. A. C. Hinton and G, 
White. 
MONDAY, June 9. , 
Rovat GroGrapnuicaL SocietTy, at 8.30.—From the Somali Coast 
through Southern Abyssinia to the Sudan: Oskar Neumann. 
TUESDAY, JUNE to. 
MINERALOGICAL Sociery, at 8.+On Meigen’s Method of Discriminating 
Calcite and Aragonite: Dr. Hutchinson.—(1) On Krennerite; (2) On 
the Gnomonic Projection: H. Smith.—On Volcanic Dust which fell at 
Barbados: G. T. Prior.—xhidit: A new form of Three-Circle Gonio- 
meter : H. Smith. 
WEDNESDAY, June 1t. 
GEoLocicat Society, at 8—A Descriptive Outline of the Plutonic Com- 
plex of Central Anglesey: Dr. Charles Callaway.—Alpine Valleys 
in Relation to Glaciers : Prof. T. G. Bonney, F.R.S.—On the Origin of 
some Hanging Valleys in the Alps and Himalaya, and their Bearing on 
the Question of the Relative Erosive Power of Ice and Water.—Prof. 
E. J. Garwood. 
THURSDAY, JuNE 12. 
Royat Society, at 4.30.—Problable papers :—(1) The Influence of an 
Atmosphere of Oxygen on the Respiratory Exchange. (2) The Influence 
of High Pressures of Oxygen on the Circulation of the Blood: L. Hill, 
F.R.S., and J. J. R. Macleod.—On the Parasitism of Psexdomonas 
destructans (Potter): Prof. M. C. Potter.—On the Toxic Properties of 
the Saliva of certain ‘‘ Non-Poisonous"” Colubrines: Prof. A. Alcock, 
F.R.S., and Dr. L. Rogers.—The Dissipation of Energy by Electric 
Currents induced in an Iron Cylinder when Rotated in a Magnetic 
Field : Prof. E. Wilson. 
MATHEMATICAL SociETy, at 5.30.—Sur un théoréme fondamental 
dans la théorie des équations différentielles: M. E. Picard.—Some 
Arithmetical ‘Vheorems : Mr. G. H. Hardy.—The Principle of Huygens 
in a Uniaxal Crystal :. Prof. A. W. Conway. 
FRIDAY, June 13. 
Roya INSTITUTION, at 9.—The Progress of Electric Space Telegraphy : 
G. Marconi. 
Puysicat Society (National Physical Laboratory), 3.30-0. 
Roya ASTRONOMICAL SOCIETY, ats. 
MALACOLOGICAL SOCIETY, at 8. 
CONTENTS. 
PAGE 
The Popular Huxley. By Sir W. T. Thiselton- 
DyeryKoCiM:.G., FIRiSS james eeriiic: | aykee eeene 
A Monograph of Mosquitoes... ........ . 123 
GhewWirect-Current Arcs Byag Mons... 0) eens: 
Cur Book Shelf :— 
Koken: ‘‘ Palzeontologie und Descendenzlehre.’”— 
10) Cesta sl nalams BA Sl. 5 BES 
Lewkowitsch : ‘‘ The Laboratory Companion to Fats 
anode @ils ‘Industriesizy ey meee ane eerenn en oe 126 
Letters to the Editor :— 
Colour-variation in the Guinea-fowl.—F. Finn . . . 126 
A Cubic and Submerged Cubes.—Prof. Thos. Alex- 
ander RSE bi cho ORONO a 
The Electrical Resistance of the Blood.— Dr. Dawson 
PRUTNEr c.: .1:, Ae one 127 
Chickens Hatched in a Tree. —W. H. Hall 127 
A Curious Optical Effect.—E. Moor ....... 127 
The Proposed Experimental Tank for Testing 
Ship Models for Resistance.  (///ustrated.)—By 
1G NG DEES ino Gee oO oe woo 5 LS 
Volcanic Dust from the West Indies. (///ustrated.) 
Byjj. J: H. Teall, F.RiSi; Rev: TaCy Porters 
J. D. Falconer i Whe Mel sfucese col Selon foo oe ESO 
Records of Recent Eruptions. (JZ//ustrated) ae Wkig2 
DrpennvEhol -, 21. Ayana ot eee E EE RLaS 
Notes SCO ec, Or oh Oo tio GY) 
The Equatorial Current on Jupiter. By W. F. 
Denninges oi... Ey eee tr see be eS 
German Progress in Optical Work ........ 138 
A Stereoscopic Method of Photographic Survey- 
ing. (Wh Diagrams.) By H. G. Fourcade 139 
University and Educational Intelligence ..... 141 
Societiesiand Academies) euch. © i SAG 
DiaryiofaSocieties |. <a Genrmeeiiin de) flo ls icmaee rma! 
