216 
PARIS. 
Academy of Sciences, June 16.—M. Bouquet de la Grye 
in the chair.—On anomalous dispersion in correlation with the 
absorbing power of bodies for radiations of a determined period, 
by M. J. Boussinesq.—Arsenic as a normal constituent of 
animals, and its localisation especially in their ectodermic organs, 
by M. Armand Gautier. Remarks ona note of M. Gabriel Bert- 
rand, and replies to the criticisms of Hoddlmoser, Cerny and 
Ziemke. The author points out that his positive results for 
certain parts of the body were always accompanied by parallel 
experiments with the same reagents upon other portions of the 
body in which negative results were obtained. The fact that 
under proper conditions arsenic is only normally found in 
the skin, nails, thymus and thyroid gland is of the highest 
importance in toxicological researches. Stress is laid 
upon the attention to detail necessary to secure trustworthy 
results. — Dissociation of the elements of the energy expenditure 
of motors employed in overcoming frictional resistances, 
by M. A. Chauveau.k—On the mode of multiplication of 
Trypanosomes in fishes, by MM. A. Laveran and F. Mesnil. 
Trypanosoma Remaki and Trypanoplasma Borrelz both multiply 
by binary division similarly to 7%. Arucez previously described. 
A fish carrying these parasites can easily inoculate another of 
the same species. The parasites do not appear to have any 
pathogenic action on the fish.—On a hypothesis concerning the 
origin of satellites, by M. L. Picart. A consideration of the 
question as to the possibility of small planets or comets being 
converted into satellites of a larger planet. None of the satel- 
lites of the known planets correspond to the conditions 
necessary for this view.—On certain couples of applicable 
surfaces, by M. Maurice Fouché.—On the integration of 
differential systems which are completely integrable, by 
M. FE. Cartan.—On the displacement and _ disturbance 
of equilibrium, by M. Jouguet.—The electric discharge 
in flame, by M. Jules Semenov.—On the electrostatic 
effects of a magnetic variation, by M. V. Crémieu. In 
reply to the criticisms of M. Carvallo, the author describes 
the latest form of apparatus used by him. Although, 
according to the Maxwell theory, the effects produced should 
have been quite appreciable, the results have been uniformly 
negative. The conclusions arrived at in the earlier work 
of the author on the non-existence of electric forces 
created in dielectrics by magnetic variations are completely 
confirmed by the later work.—On a magnetic disturbance 
observed at Athens on May 8, by M. D. Eginitis. The 
magnetic disturbance coincided with the eruption of Mont 
Pelée. From the fact that the seismograph showed 
absolutely no disturbance, and that a similar phenomenon was 
simultaneously observed at Paris, it is concluded that the dis- 
turbance must have been of a magnetic or electric nature. —The 
polymerisation and heat of formation of oxide of zinc, by M. de 
Forcrand. On ignition, zinc oxide undergoes a change into a 
polymeric modification with the evolution of heat.—Combina- 
tions of hydrogen sulphide with anhydrous aluminium chloride, 
by M. E. Baud. By the action of liquid sulphuretied 
hydrogen upon anhydrous chloride of aluminium, two compounds 
are formed, ore, AloCl;-H.S, stable at the ordinary tempera- 
ture, the other, AloClg.2H.S, dissociable at about — 45° C.—On 
the alloys of cadmium and magnesium, by M. O. Boudouard. 
Two definite alloys of these two metals have been isolated, 
CdMg and CdMg,. The study of the fusibility curves pointed 
to the existence of a third, CdMg,,, but this could not be 
definitely isolated. —On the existence of arsenic in the organism, 
by M. Gabriel Bertrand. The author has elaborated the method 
of M. Gautier for the determination of minute quantities of arsenic 
in organic material, and is able to detect with certainty as little 
as 1/1oooth of a milligram. The results of M. Gautier are 
generally confirmed. A point of especial interest was the proof 
of arsenic in the thyroid glands of Phoca barbata, captured near 
Spitzbergen, a case to which the theory of industrial con- 
tamination could not possibly be applied.—On isomerism 
in the benzylidene-methones and on the preparation of 
an a-methyl-a-isopropyladipic acid identical with dihydrocam- 
phoric acid, by M. G. Martine. The identity of the acid 
obtained by the oxidation of benzylidene-menthone with potas- 
sium permanganate with the dihydrocamphoric acid of Crossley 
and Perkin has been completely proved.—Pyromucic and 
isopyromucic acids. The action of phosphoryl chloride and 
phophorus pentachloride, by M. G. Chavanne. Isopyromucic 
NO. 1704, VOL. 66] 
NATURE 
[JUNE 26, 1902 
acid differs from the isomeric pyromucic acid in not being a true 
acid, and is apparently a phenol. —On a new glucoside, aucubine, 
extracted from the seeds of ducuba japonica, by MM. Em. 
Bourquelot and H. Herissey. The new glucoside occurs in the 
seeds mixed with a large quantity of cane sugar, from which it 
can be separated by fermentation of the sugar by yeast. 
Dextrose is one of the products of hydrolysis of the glucoside. 
—On the production of glycose by the muscles, by MM. 
Cadéac and Maignon. The muscles resemble the liver in 
producing sugar after death, the amount produced being 
a function of the temperature to which the muscle is 
exposed. This action is in no way connected with putrefaction. 
—On the hemolytic action of cobra poison, by M. A. Calmette. 
— Permanent contraction in the pigeon, by M. Louis Boutan,— 
On the aérobic fermentation of manure, by M. C. Dupont. The 
aérobic fermentation of farm manure is due to two bacteria, 
Bacillus mesentericus ruber and Bacillus thermophilus Grig- 
nonz; these bacteria burn the nitrogenous materials, sugars, 
starches and gums.—On the internal morphology of the genus 
Thylacoplethus, a parasite of the Alpheide, by M. H. 
Coutiére.— On the impressions produced under the influence of 
certain gases, by M. A. J. J. Vandevelde. The author has 
produced images similar to those described by MM. Vignon 
and Colson, making use for this purpose of hydrogen sulphide, 
ammonia, hydrochloric acid and iodine. —On the subterranean 
river of Trépail, Marne, by M. E. A. Martel.—Physiological 
photometry, by M. G. M. Stanoiévitch.—A new method of 
measuring muscular sensibility, by MM. Toulouse and Vaschide. 
—On a vertical series of densities of sea water of the 
Mediterranean, by M. J. Thoulet. 
CONTENTS. PAGE 
Biblical Criticism at its Best and Worst . 193 
ppbesoraminifera. Bya\en) cme meemmns) ome 196 
By Dr. F. Mollwo Perkin 
Unorganised Ferments. 197 
Our Book Shelf :— 
Wislicenus: ‘‘ Astronomischer Jahresbericht.” — 
Dr. W. J. 'S. Lockyer asaees-) icin enemas 
Mackenzie : ‘‘ Elements of Metaphysics.”—A. E. T. 198 
Zeuthen : “‘ Histoire des Mathématiques dans l’Anti- 
quité et le Moyen Age.””—M. : SL” a oaeaOU) 
“A la Conquéte du Ciel! Contributions Astro- 
nomiques de F. C. de Nascius, en Quinze Livres” 199 
Letters to the Editor :— 
Mr. Marconi’s Results in Day and Night Wireless 
Telegraphy.—Prof. J. Joly, F.R.S. eee. 1ES)S) 
Remarkable Sunsets at Madeira.—F. W. T. Krohn 199 
The Institution of Electrical Engineers’ Deputa- 
tion on Electrical Legislation a g 199 
Report on the Teaching of Geometry. By C. G. 201 
Seismic Frequency in Japan. By Prof. J. Milne, 
BRIS. MEMEDT Oo oes, 2 0 osclD 202 
The West Indian Volcanic Eruptions 203 
The Royal Society Soiree 204 
Notes Re Ne: A 205 
Our Astronomical Column :— 
Astronomical Occurrences in July . 208 
The Anna Bredikhine Astronomical Prize . . 208 
Occultation of W Leonis tes. 3, es 
A Remarkable Bolide Observed at Lyons on March 19 208 
Notation of Variable Stars . ero TRE a oS 
Study of Bright Points and Curves. (Jl//ustrated) 208 
Variation — Germinal and Environmental. By 
F. A. D. BM 5% 5 - 209 
Rust-Fungus. (///ustrated) ats 210 
University and Educational Jntelligenc 212 
Scientific Serials . Bab -dt ety Obi 212 
Societies and Academies. (/¢//usti ated) 213 
