504 
MATHTRE, 
[Marcu 24, 1904 
action of carbonic acid, in reply to the criticisms of i Lbs 
Meunier.—On some derivatives of a-campholytic 
of a-campholenic acid: G. Blane and \M. Desfontaines. 
—A method of preparation of aldehydes and the systematic 
degradation of acids: E. E. Biaise.x—On a_ general 
method of synthesis ‘of the alde ehydes: F. Bodroux 
(see p. 496).—A method of estimating vegetable proteids : 
L. Beulaygue.—On two new larval forms of Thrombidium, 
parasites of man: F. Heim and A. Oudemans. The 
names T. striaticefs and periceps are proposed for the 
new species, which are described in detail, with illustrations. 
—On some experiments carried out in the laboratory in 
the catacombs of the Natural History Museum: Armand 
Viré. A study of the modifications produced in animals 
kept in total darkness.—On a new Cerianthus: Louis | 
Roule.—On the secretory mechanism producing pearls : 
Raphael Dubois. The formation of the pearl cannot be 
considered as due to a simple ordinary secretion, the organic 
skeleton and the calcium carbonate not being secreted by 
the same element.—On the distribution of the chemical 
elements in the earth and its possible relation with the 
atomic weights: L. de Launay. [rom the considerations 
adduced by the author it would appear that whilst the 
earth was still in a fluid state the elements already con- 
stituted arranged themselves at distances from the centre 
which were greater as the atomic weights were smaller, as 
if, in fact, the atoms, absolutely free from all chemical 
affinity at such high temperatures, had obeyed, in a fluid 
a central attraction combined with centri- 
fugal force.—On a new variety of orthose: L. Dupare.— 
The generalisation, by means of the nerves, of the action 
of the n-rays applied to a point of the organism: Augustin 
Charpentier.—Jhe insufficiency of development of toxic 
sphere in rotation, 
origin: MM. Charrin and te Play.—The action of 
formaldehyde on milk: A. Tritlat. The casein of milk is 
by the action of very small 
At the same time the antiseptic 
aibumenoid! and is free to exert its well 
rendered absolutely insoluble 
amounts of formaldehyde 
is not fixed by the 
known injurious effects when taken into the digestive 
system. The effect of the addition of this See to 
milk is thus doubly injurious. —On the essence of Artemisia 
herba alba: E. Grimal. 
GOTTINGEN. 
Royal Society of Sciences.—The Nachrichten (physico- 
mathematical section), part vi., 1903, contains the follow- 
ing memoirs communicated to the society. : 
October 31, 1903.—S. Nakamura: On the law of the 
velocity of light in tourmaline. A Houstoun: On the 
action of a transitional stratum in total reflection. 
November 28, 1903.—G. Herglotz: Contribution to the 
theory of elecfrons. 
December 12, 1903.—H. Gerdien: Measurements of the 
electrical conductivity of free air during four balloon 
ascents. 
The Proceedings of the society include a discourse, by 
Prof. Verworn, on natural science and cosmical theory ; an 
addiees of congratulation on his jubilee to Dr. Lipschitz, 
' Bonn; and a note by F. Klein and K. Schwarzschild on 
a recently published portrait of Gauss at the age of twenty- 
six, which they decide to be in reality a portrait of Bessel. 
DIARY OF SOCIETIES. 
THURSDAY, Marcu 24. 
Royat Society, at 4.3 
30.—Croonian Lecture, on the Chemical Regulation 
of the Secretory Process: Prof. E. H. Starling, F.R.S., and Dr. W. M. 
Bayliss, F.R.S 
INSTITUTION OF ELECTRICAL ENGINEERS, at £.—Direct Reading Measur- 
ing Instruments for Switchboard Use: K. Edgcumbe and F. Punga. 
FRIDAY, 
at 9.—Liquid Hydrogen Calorimetry: Prof. Dewar, 
MARCH 25. 
Rovat INSTITUTION, 
F.R.S. 
Puysicat Society, at 5.—Note on the Measurement of Small Induct- 
ances and Capacities and on a Standard of Small Inductance: Prof. 
J. A. Fleming, F.R.S.—A Hot-wire Ammeter for Measuring very 
small Alternating Currents: Prof. J. A. Fleming, F.R.S.—The Energy 
of Secondary Réntgen Radiation: C. G. Barkla 
NO. 1795, VOL. 69] 
acid and | 
InsTITUTION OF CiviIL ENGINEERS, at 8.—The Relative Advantages: 
of Continuous and Alternating Current for Traction Purposes: J. M.. 
Kennedy. 
SATURDAY, Marcu 26. 
Roya InsTITUTION, at 3.—The Life and Work of Stokes: Lord 
Rayleigh. 
MONDAY, Marcu 28. 
INSTITUTE OF ACTUARIES, at 5-—On the Valuation of Whole-life Indus-- 
trial Assurances, with Allowance for Lapses: T. G. Ackland and 
J. Bacon. 
TUESDAY, Marcu 209. 
INSTITUTION OF CIVIL ENGINEERS, at 8.—Lowering the Sill of the Rams- 
den Dock, Barrow-in-Furness: IL. H. Savile.—Burntisland Harbour ;- 
Construction of the East Dock: R. Henderson. 
CONTENTS. PAGE. 
Divers Menand Matters .. . me sites, «| sth: ae 481 
In Search of Truth. By G.S. B. cat - eens oe 
Peaks and Passes of Greece. By D. G. H. Bc.‘ 483. 
Our Book Shelf :— 
Jaekel : ‘* Ueber aprschigdene Wege phylogenetischer 
Entwickelung.”—J. A. 484 
Classen and Cloeren : ‘‘ Asgewible “Methoden der 
analytischen Chemie.’—J. B,C... . . 484 
O’Gorman: ‘ O'Gorman’s “Motor Pocket Book.”— 
N. J. L. 484 
Garriott : ‘© W eather Folk-Lore and Local W eather 
Signs." —W.J.S.L. . : : 485. 
Garratt : ‘€ The Principles of Mechanism”. . 485, 
Knowles : ‘* Calculating Scale, a Substitute for the 
Slide Rule” . f 485. 
Payne : ‘‘ Practical Orthochromatic Photography ” . 486. 
Garsiang : ‘* Tombs of the Third Egyptian qh at 
Reqaqnah and Bet Khallaf” . 486 
Workman and Chope: ‘** Worked Problems in Higher 
Arithmetic” 4 486 
Letters to the Editor :— 
Blondlot’s 7-Rays.—Dr. C. C. Schenck . . 486- 
Escape of Gases from Atmospheres.—S, R. Cook 487- 
Demonstration of Magnetostriction by Means of 
Capillary Ripples. — (/i7th Pie H. 
Nagaoka... che Sie Lee eo Oe 
Earth Structure.—A. Tee 488 
Spawning of the Plaice. _Prof. W. A. Herdman, 
F.R.S.; Wm. Wallace .. aes 
Euclid’s Definition of a Straight Line.—R. E. B, 
Your Reviewer. . Gre ieepacet 489. 
Respiration in Frogs. MED aii seen 489) 
Subjective Colours. —-T, W, Backhouse... . 489: 
Secondary Radiations of Radium.—J. S. Davis . 489: 
British Lizards. (//ustvated.) By R. L. 490 
The Education of Japanese Naval Officers . 490. 
The National Eeical a ad pede Mauiice 
Solomon .. - * 2 w4OE 
Ferdinand Fouque. ByiAe G. 6 0 492 
Notes: <== : B Roo OG eh 493 
Our Aatronomieal Column: — 
Variations of the Martian Canals”. ass 496 
Prof. Burnham’s Measures of Double Stars reo 496- 
Origin of Aurore . 497 
Astronomical Determination of Latitude and Azimuth 497 
Theories of the ca aes Power of a Microscope. 
SPSS Wels 5 5 ns Sie oeorteteoe A os oe CGY 
Frost Effects at Niagara. (ilusizated:) \ owe A OD 
A Formidable Enemy to the Cotton Plant. By 
WOR Kirby) 3st. 2. 3 .- sh re OO 
Geological Studies in Peru. (J//ustvated.) By 
Gi AS]. C.ucaeee - c 500 
Relation between Meraperature and faievation 500. 
The Relation of Mathematics to Engineering. By 
Prof. C. A. Waldo eee =) ne aie OOR 
University and Educational Intelipenee 6 Soo 5 Sou 
SocietiestandwAcademies, . {2k sear SOS 
DiaryjofiSocieticsjrcn.. - . 1) + -tcieen | -iiueaeiee nea rein Oe 
