624 
NALTUORE 
[APRIL 28, 1904 
resistance to motion has been worked out experimentally 
as a function of the diameter of the wire, and the results 
compared with the theory of Stokes.—On the apparent 
diminution of energy of a feeble acid in the presence of its 
neutral salt: G. Chesneau. The incomplete precipitation 
of metallic acetates in the presence of sodium acetate by 
means of hydrogen sulphide appears to be due to the form- 
ation of small quantities of an alkaline sulph. , and it is 
unnecessary to resort to the electrolytic theury of dis- 
sociation to interpret this phenomenon.—On the methyl ether 
of acetol: Louis Henry.—On the acetolate of methyl : 
André Kling.—Halogen ether oxides, RO(CH,),X, and their 
magnesium compounds. New syntheses in the tetra- 
methylene series : J. Hamonet.—On a new general reaction 
‘of aldehydes: L. J. Simon and A. Conduche. Aldehydes 
‘condense with oxalacetic ester and ammonia to give crystal- 
line compounds, the constitution of which is not yet com- 
pletely made out.—The chlorination of phenyl carbonate in 
the presence of antimony chloride: Et. Barrat.—The action 
of sulphur and selenium on the organomagnesium com- 
pounds of aromatic hydrocarbons, with one or two halogen 
atoms in the ring: F. Taboury. Sulphur gives thiophenols 
and disulphides; selenium forms analogous compounds.— 
The purification and characterisation of alcohols: L. 
Bouveault. Pyruvic esters are readily formed, and give 
characteristic semicarbazones.—On two isomeric f-methyl- 
cinnamic acids: M. Tiftfemau.—The action of organo- 
magnesium compounds on_ phthalimide and _phenyl- 
phthalimide : Constantin Reis.—On the hydrates of methyl 
alcohol and acetone: E. Varenne and L. Godefroy. The 
existence of several hydrates of methyl alcohol and acetone 
is inferred from a study of the viscosity of various mixtures 
of these substances with water.—On the perception of 
luminous radiations in nocturnal moths, and on the use of 
lamps as decoys: Joseph Perraud.—On the peduncle of 
some Vorticella : Emmanuel Fauré.—On the presence of 
a new American genus (Abronia) in the Tertiary flora of 
Europe: L. Laurent.—On the sulphur spring of Matsesta 
(Transcaucasia) and the relation between caves and thermo- 
mineral springs: E. A. Martel.—The histology and bacteri- 
ology of mud extracted from a depth of 10 metres in a 
well at the necropolis of Bernard (Vendée): Marcel 
Baudouin.—The influence of acidity on enzymes: P. Petit. 
—Chemical researches on the thyroid apparatus: Jean 
Chenu and Albert Morel. It is possible to differentiate 
by chemical analysis between the thyroid and parathyroid 
bodies, the latter’ containing much less iodine.—The effect 
of ablation of the liver on the coagulation of the blood : 
M. Doyon and N. Kareff.—Contribution to the study of 
sand filters: M. Marboutin. 
DIARY OF SOCIETIES. 
THURSDAY, Apri 28. 
Royat Society, at 4.30.—Further Experiments on the Production of 
Helium from Radium: Sir William Ramsay, K.C.B., F.R.S., and 
F. Soddy.—The Effects of Changes of Temperature on the Modu- 
lus of Torsional Rigidity of Metal Wires: Dr. F. Horton.—The 
Sparking Distance between Electrically Charged Surfaces. Preliminary 
Note: Dr. P. E. Shaw.—Studies on Enzyme Action. Part II. The 
Rate of the Change Conditioned by Sucroclastic Enzymes, and its Bear- 
ing on the Law of Mass Action. Part III. The Influence of the Products 
of Change on the Rate of Change Conditioned by Sucroclastic Enzymes: 
Dr. E, F.Armstrong.—Part IV. The Sucroclastic Action of Acids as 
Contrasted with that of Enzymes: Dr. E. F. Armstrong and R. J. Cald- 
well.—Enzyme Action as bearing on the Validity of the Ionic-dissocia- 
tion Hypothesis, and on the Phenomena of Vital Change: Prof. H. E. 
Armstrong, F.R.S.—On the Changes of Thermoelectric Power produced 
by Magnetisation, and their Relation to Magnetic Strains: Dr. S. 
Bidwell, F.R.S.—The Behaviour of the Short-period Atmospheric Pres- 
sure Variation over the Earth's Surface ; Sir Norman Lockyer, K.C.B., 
F.R.S., and Dr. W. J. S. Lockyer. 
Roya INSTITUTION, at 5.—Dissociation : Prof. Dewar, F.R.S. 
INSTITUTION OF ELECTRICAL ENGINEERS, at 8.—Power Station Design : 
C. H. Merz and W. McLellan. 
FRIDAY, Aprit 29. 
Roya. INsTITUTION, at 9.— Westminster Abbey in the Early Part of the 
Seventeenth Century: The Very Rey. J. A. Robinson. 
MONDAY, May 2. 
Royat INSTITUTION, at 5.—Annual Meeting. 
ARISTOTELIAN, SOCIETY, at 8.—Kant’s Idealism: G. E. Moore. 
Society or CuHemicaL INpbustRy, at 8.—(1) The Determination of 
Minute Quantities of Bismuth in Copper and Copper Ores. (2) The 
Determination of Minute Quantities of Arsenic in Copper Ores and 
Metallurgical Products: T. C. Cloud.—The Estimation of Mercury : 
D. A. Sutherland. 
NO. 1800, VOL. 69] 
TUESDAY, May 3. 
Rovat INSTITUTION, at 5.— Meteorites : L. Fletcher, F.R.S. 
ZooLocicaL Society, at 8.30.—On the Osteology and Systematic 
Position of the rare Malagasy Bat Myzofoda aurita: Oldfield Thomas, 
F.R.S.—Contributions to the Anatomy of the Lacertilia. III. On some 
Points in the Vascular System of Chamzleon and other Lizards: F. E. 
Beddard, F.R.S.—Notes on the Gill-rakers of Polyodon: A. D. Imms. 
Society oF ARTS, at 4.30.— Canada and Great Britain: W. L. Griffith. 
WEDNESDAY, May 4. 
En roMOLoGic... — » - TY, at 8.—Some Breeding Experiments on Catopsilia 
pyranthz, and Vo «son the Migration of Butterflies in Ceylon: Major 
Neville Mande ., R.A.M.C. 
Society oF Arts, at 8.—Statistics of the World’s Iron and Steel Indus- 
tries: W. P. Digby. 
Society oF Pustic ANALYstTs, at 8.—(1) Cod Liver Oils and other Fish 
Oils ; (2) Note on Mushroom Ketchup: J. F. Liverseege.—Note on Some 
Constants obtained in the Examination of Margarine: E. Russell and 
V. H. Kirkham.—Note on the Estimation of Sugars in Concentrated 
Malt Extract: A. R. Ling and Theodore Rendle. 
THURSDAY, Mav 5. 
LINNEAN Society, at 8.—British Freshwater Rhizopoda: J. Cash.—On 
Coloration in Animals and Birds: J. Lewis Bonhote. 
RONTGEN Society, at 8.30.—The Rontgen Society; its Past Work and 
Future Prospects : J. J. Vezey.—Some Experiments with Alpha Rays: 
F. H. Glew. 
CHEMICAL Socigerty, at 8.—The Slow Combustion of Ethane ; W. A. Bone 
and W.E. Stockings.—Note on the Hydrolysis of Starch by Diastase : J. S. 
Ford.—The Resin Acids of the Conifer. Part I. The Constitution of 
Abietic Acid : T. H. Easterfield and G. Bagley.—The Action of Radium 
Rays on the Halides of the Alkali Metals, and Analogous Effects pro- 
duced by Heat : W. Ackroyd.—The Dynamic Isomerism of Glucose and 
of Galactose. Solubility as a means of Determining the Proportions 
of Dynamic Isomerides in Equilibrium : T. M. Lowry.—A Study of the 
Substitution Products of a»-tetrahydro-a-naphthylamine, a7-4-bromo- 
tetrahydro-a-naphthylamine and a?-tetrahydro-a-naphthylamine-4-sul- 
phonic acid: G. T. Morgan, Miss F. M. G. Micklethwait, and H. B. 
Winfield.—The Additive Products of Benzylideneaniline with Methyl- 
acetoacetic Ester and Acetoacetic Ester; F. E. Francis and Miss M. 
Taylor. 
CONTENTS. PAGE 
Heterceciousprust-hungi |n a cee E . 601 
ASStudyJofskeabicsie. oes GEOarackomO Sc 602 
Mining and Quarrying. By B,H.B. ..... 603 
Some! Books/onj;Quaternions) 7. 5). sees ee 604 
Our Book Shelf :— 
Hertwig : ‘‘ A Manual of Zoology” . . . 604 
““ A Guide to the Antiquities of the Bronze Age in the 
Department of British and Medieval Antiquities, 
BritishyMusetim)?? ..) 57.172 ooo) in en 
Mayor:+§ The) Care‘of Animals? <0)" 2s eOOsS 
Jackson : ‘* A Text-book of Ceramic Calculations, with 
Examples?" 0)... 3. “02s! 6. ist io) ot Ghee, 
‘Botany Rambles? . .) sf) 2m) tel tev oulect ae 
Letters to the Editor :— 
The Complex Nature of Thorium.—Prof. Bohuslav 
Brauner MOE ope bolo 6) 6 ES 
Radio-activity and the Law of Conservation of Mass.— 
O..W., Richardson = 2% |. 3)... < «eit OOO 
The Atomic Weight of Radium.—William Suther- 
land 9.03 2250). . 1. aa ese. Seon 
Graphic Methods in an Educational Course in 
Mechanics:——W, Liarden "3 2 05. 2 =. 0) SaeeoOy, 
Sunspots and Temperature. (W%th Diagram.)— 
Alex) B:)MacDowall 23 -) suena ee] 
A New Epoch in Solar Physics, (///ustrated.). By 
Dr, William’ Ji°S; Lockyer): ce. 1) eon) 
Commemoration Day at the University of Glasgow. 
By WreJe so =. 2 fae, +. te ote te fe neice 
The Celebration of Sir Henry Roscoe’s Graduation 
Jubilée eee ee) sec coe en OE 
Sir Clement Le Neve Foster, F.R.S. By B. H. B. 614 
Lord Milner on Science and Industry. ..... . 615 
INotest: oe gawe) Seen ees Oued 615 
Our Astronomical Column :— 
Astronomical Occurrences in May ....... . 620 
Gomet*1904as a0 2. ve Ses as A eZ 
Elements and Ephemeris for Wolf's Comet (1884 III.) 620 
Stars having Peculiar Spectra. . ......... 620 
Spectra Obtained from the Wehnelt Interrupter Dis- 
Charges ia ieee «et 32s diet, See oO 
Variable Stars of the Orion Nebula . ...... . 620 
The German Antarctic Expedition ........ 620 
Educationjiniindiame. ©: 2 ou. sens eae 
Plating Upon Aluminium. By F.M.P...... . 622 
University and Educational Intelligence ..... 622 
Societies andvArademies’ ~ . 5.) 29.) fo tas ees 
DiarylofSocieties) 3... 2 cya eyes cient meee 
kZ1 0% 
