22 
Paul Gaubert: Mixed liquid crystals—Albert Michel 
Levy: The effects of the granitic metamorphism in 
the carboniferous eruptive tufas in the neighbourhood 
of Macon.—Pereira de Sousa: Contribution to the 
petrographical study of the north of Angola.—Marcel 
Delassus: The influence of the size of seeds on the 
general development and anatomy of plants.—Raoul 
Combes: The conversion of an anthocyanic pigment 
extracted from red autumnal leaves to the yellow 
pigment contained in the green leaves of the same 
plant. The yellow pigment is obtained by oxidising 
the red pigment with hydrogen peroxide. The change 
in the colour of leaves in the autumn is due to a 
process of reduction.—L. Blaringhem and E. Miége: 
Studies on the straw of wheat.—Armand Viré: Ex- 
periments on the divining rod. A detailed account 
of the successful use of the divining rod.—R. 
Robinson: The physiological localisations of the 
encephalus contrasted with extensive destruction of 
this organ.—-I. G, Garfounkel and J. Gautrelet ; Con- 
tribution to the study of the action of colouring 
matters on the heart and blood pressure.—Emile 
Yung: The vertical distribution of plankton in the 
lake of Geneva.—A. Gruvel: The anchovy (Engraulis 
eucrassicholus) on the western coast of Africa.—Ch. 
Gravier : The incubation of Mopsea and Rhopalonella 
from the Antarctic—Adrien Lucet: The influence of 
agitation of the broth cultures on the development of 
Bacillus anthracis and some other micro-organisms.— 
Henri Coupin; Zinc and Sterigmatocystis nigra.—]J. 
Wolff : The catalytic action of iron in the development 
of barley.—A. Fernbach and M. Schoen: Pyruvic acid a 
life product of yeast.—Emile Haug: The geology of 
the southern slopes of Sainte-Baune.—J. Blayac : Rela- 
tions between the sands of the Landes and the terraces 
of the Garonne.—A. Bigot: The structure of the 
Bocain zone.—P, Idrac: The inequalities of the dis- 
tribution of terrestrial magnetism. 
BOOKS RECEIVED. 
Letzte Gedanken. By H. Poincaré. Translated by 
Dr. K. Lichtenecker. Pp. vi+261. (Leipzig: 
Alxademische -Verlagsgesellschaft | m.b.H.) 4.50 
marks. 
The Madras Presidency, with Mysore, Coorg, and 
the Associated States. By E. Thurston. Pp. xii+ 
293. (Cambridge: University Press.) 3s. net. 
Plant Life. By T. H. Russell. Pp. 71. (Birming- 
ham: Cornish Bros., Ltd.) 2s. 6d. net. 
Royal Horticultural Society. Four Essays, written 
by Students at Wisley, 1913. Pp. 72. — (London: 
Royal Horticultural Society.) 
The Story of Plant Life in the British Isles. 
A. R. Horwood. Pp. xiv+254. 
Churchill.) 6s. 6d. net. : 
Water: Its Purification and Use in the Industries. 
By W. W. Christie. Pp. xi+219. (London: Con- 
stable and Co., Ltd.) 8s. 6d. net. 
Transmission Line Formulas for 
Engineers and Engineering Students. 
Dwight. Pp. vit+137. 
Ltd.) 8s. 6d. net. 
By 
(London: J. and A. 
Electrical 
By Hib: 
(London: Constable and Co., 
DIARY OF SOCIETIES. 
FRIDAY. JANUARY 2. 
Geotoscists' Association, at §.—The North Sea Drift and Certain Brick- 
Earths in Suffolk: P. G. H Boswell. 
MONDAY, January 5. 
ARISTOTELIAN Society, at 8.—Philosophy as Co-ordination of Science: 
H. S. Shelton. 
Society or Curvwicat Inpustry, at 8.—The Viscosity of Oils: J. L. 
Strevens.—The Oxygen C: ntent of Gases from Roasting Pyrites: L. T. 
Wright.—The El-cirical Conduciivity of Milk During its Concentration, 
with Suggestions for a Practical Method of Determining the End Point in 
NO. 2305, VOL. 92] 
NATURE 
[JANUARY I, 1914 
the Manufacture of Sweetened Condensed Milk: L. C. Jackson, L 
Mc \ab, and A. C. H. Rothera.—Monazite from Some New Localities - 
S. J. Johnstone. : 
R6NTGEN Society, at 8.15.—Histological Changes Produced by Re a 
Animal Tissues; Destructive and Hy i, ea Acuon of X-rays 5 
tical Consequences in Regard to Radio-Therapy and Protection of the 
Radiologist : Dr. J. Clunet. 
WEDNESDAY. JANUARY 7. 
Grotocicat Society, at 8.—The Grdoieen and Silurian Rocks of the 
Lough Nafooey Area (County Galway): C. I. Gard ner and Prof. S. H. 
Reynolds.—The Geology of the St. Tudwal’s Peninsula (Carnarvonshire) : 
T. C. Nicholas. Ws 
AiRONAUTICAL SociFTY, at 8.30.—Wind Gusts and the Structure of Aériat 
Disturbances : Dr. W, N. Shaw. ? 
THURSDAY, January 8. 
Concrete InstiTUTE, at 7.30.—Factory Construction : P. M. Fraser. 
INsTITUTION OF ELECTRIC AL KNGINEFRS, at 8. —The Development 
Electric Power for Industrial Purposes in India: H. R. Speyer. 
FRIDAY, JANUARY 9. 
Roya ASTRONOMICAL SOCIETY, at 5. 4 ' 
CONTENTS. 
Evolution and Genetics . 2 ow 
Typical Geography Books. By B.C. W...... 
Organic Chemistry, and One of Its Applications. 
Ot rms mL 
Our Bookshelf) 2, 1. .-0-0.))s sue 0) 0) 
Letters to the Editor :— 
The Pressure of Radiation. —Prof. H. L. Callendar, 
F.R.S. oa.) spl I, alte Sais 
Atomic Models and X-Ray Spectra.—Dr. F. A. 
Inindemann »)'... 7) st) es 
The Plumage Bill.—L. Joseph; Sir H. H. John- 
ston, G:C, M; Gi, Kae eee «ji ee i 
A Palzobotanical Institute at the Royal Botanic 
Gardens, Kew.—Prof A. G. Nathorst. ... 
Electrodeless Spectra of Hydrogen.—Irvine Masson 
Birds, Game, and Trees. (J/i/ustrated.) By R. I. P. 
The Mineral Resources of the United States. By 
Sir Trevor Lawrence, Bart. . nae 
A New British Antarctic Expedition ....... 
Notes. ..... . 0 3) SACS epee 
Our Astronomical Column :— 
Comet 1913/ (!'elavan) ates 
An Aid to Transit Circle Observers . . ... +. 
Standard Wave-Length Determinations 
Prize Awards of the Paris Academy of Science 
RAELOLS ow oe velo RAS Se rer 
Papers on Vertebrate Paleontology. ByR.L. . . 
Agriculture at the British Association ...... 
Psychology at the British Association. By Cyril 
Burt arene > ate: “0 5 ele ft 
On the Highest University Education in Germany 
and France, By SirJames Donaldson. .... . 
University and Educational Intelligence. .... . 
Societies and Academies . sh yer ; 
Books Received a me 
Diary of Societies . 
oo heen 
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