548 
fungi. 
Volvaria gloiocephala are all about equally toxic in 
the fresh state; but on drying, A. mappa loses its 
toxicity, whereas the others are not affected to any 
extent.—A. Magnan : Influence of diet on the liver and 
kidneys of ducks.—J. Vallot: The appearance of large 
quantities of Desoria glacialis on the surface of a 
glacier.—E. Kayser : influence of nitrogenous matter on 
the production of ethyl acetate in alcoholic fermenta- 
tion.—Pierre Thomas and Mlle. Madeleine Lebert ; 
Action of certain cholesterin derivatives in increasing 
the number of red blood-corpuscles.—M. Javillier ; The 
influence of zinc on Aspergillus niger.—A. Kiesel : The 
influence of various acids and acid salts on the develop- 
ment of Aspergillus niger. 
BOOKS RECEIVED. 
The Love of Nature among the Romans. 
Archibald Geikie. Pp. xi+394. 
By Sir 
(London: J. Mur- 
ray.) 9s. net. 
Studies in Luminescence. By Profs. E. L. Nichols 
and E. Merritt. Pp. vii+220. (Washington : 
Carnegie Institution.) 
The Influence of a Magnetic Field upon the Spark 
Spectra of Iron and Titanium. By A. S. King. Pp. 
iii+66+6 plates. (Washington: Carnegie Institu- 
tion.) 
Uber die Einwirkung von Wasser und Natronlauge 
auf Baumwollcellulose. By Dr. M. Robinoff. Pp. 
ii+94. (Berlin: Gebriider Borntraeger.) 3.60 marks. 
Illustriertes Handbuch der Laubholzkunde. By 
C. K. Schneider. Zwélfte (Schluss-) Lieferung. Pp. 
817-1070. (Jena: G. Fischer.) 8 marks. 
The Tungsten-mining Industry in New South 
Wales. By J. E. Carne. Pp. 102. (Sydney: A. W. 
Gullick.) 2s. 6d. 
Report on Scottish Ornithology in 1911, including 
Migration. By E. V. Baxter and L. J. Rintoul. Pp. 
80. (Edinburgh: Oliver and Boyd; London: Gurney 
and Jackson.) 1s. 6d. net. 
University of London. Francis Galton Laboratory 
for National Eugenics. Eugenics Laboratory Memoirs 
XVIT. A Second Study of Extreme Alcoholism jn 
Adults, with Special Reference to the Home Office 
Inebriate Reformatory Data. By Dr. D. Heron. Pp. 
iv+95. (London: Dulau and Co., Ltd.) 5s. net. 
Les Cavernes de la Région Cantabrique (Espagne). 
By H. A. del Rio, L’Abbé Prof. H. Breuil, and 
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A. Chéne.) 
Soil Conditions and Plant Growth. 
Russell. Pp. viii+168. (London: 
Co.) 5s. ‘net. 
Researches on Cellulose. 
By Draws 
Longmans and 
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Black’s Modern Guide to Harrogate. Edited by 
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Black.) 1s. 
An Introduction to Practical Physics for Colleges 
and Schools. By Prof. E. H. Barton and Dr. T. P. 
Black. Pp. vii+188. (London: E. Arnold.) 3s. 6d. 
Maps: How they are Made; How to Read Them. 
By Prof. H. N. Dickson. Pp 66. (London: G. W. 
Bacon and Co., Ltd.) 6d. 
The British Museum Reading Room. 
book for Students. By R. A. Peddie. 
(London : Grafton and Co.) ts. net. 
NO. 2230, VOL. 89] 
A Hand- 
Pp. vii+6r. 
NATURE 
Amanita phalloides, A. verna, A. mappa, and 
[JuLy 25, 1912 
First Year’s Course of Chemistry. By J. Sinclair 
and G. W. M’Allister. Pp. vii+165. (London: G, 
Bell and Sons, Ltd.) 1s. 6d. 
L’Education Physique ou L’Entrainement complet 
par la Methode Naturelle. Exposé et Résultats. By 
G. Hébert. Pp. 85. (Paris: Viubert.) 
Vorlesungen tiber vergleichende Tier- und _ Pflan- 
zenkunde. By Prof. A. Wagner. Pp. viiit+518. 
(Leipzig: W. Engelmann.) 11 marks. 
An Introduction to the Infinitesimal Calculus. By 
Prof. H. S. Carslaw. Pp. xii+137. (London: Long= 
mans and Co.) 55. net. 
The Second Danish Pamir Expedition: Studies on 
the Vegetation of the Transcaspian Lowlands. By 
O. Paulsen. Pp. v+279. (Copenhagen: Gylden- 
dalske.) : 
Allgemeine Elektrotechnik. By Prof. P. Janet. 
Translated by F. Siichting and E. Riecke. Erster 
Band. By F. Siichting. Pp. vi+269. 
Berlin: B. G. Teubner.) 6 marks. 
Bau und Leben der Bakterien. By 
(Leipzig and 
Prof. W. 
Benecke. Pp. xii+650. (Leipzig and Berlin: B. G- 
Teubner.) 15 marks. 
Norse Tales. By E. Thomas. Pp. 159. (Oxford : 
Clarendon Press.) 2s. 
Illustriertes Handbuch der 
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G. Fischer.) 5 marks. 
Photographic Copyright. By G. E. Brown and A. 
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Laubholzkunde. By 
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CONTENTS. PAGE 
Recent Works on Natural History. By R. I. P. . 523 
Microscopy. \/By, J. E. Beanie ke a 525 
Outlines and Principles of Chemistry. By A. F. | 526 
Health Handbooks. By Prof. R. T. Hewlett . . . 527 
OurBookshelfc;))\.. )..0 5°30 aiy palseeee eee ea ae 525 
Letters to the Editor :— 
Forced Vibrations. John P. Dalton ...... 528 
Lobsters in the Aigean.—Dr, W. T, Calman . . . 529 
Wanted—A Flower Sanctuary.—F, H. Perrycoste 529 
Anthropology in Southern India. (JZ//ustrated.) . . 530 
Imperial Cancer Researchiiiundss). 0.) eee 531 
MxJames Dunn.) (By VWs) Heaven ee 532 
Andrew Lang. By A. E, Crawley... ..... 532 
The 2s5oth Anniversary of the Royal Society . . . 533 
MiprienriPoincaré .4 =, cae een enn eee 535 
INGLES Faria. oc): - 3.) ee eee 536 
Our Astronomical Column :— 
Radium and the Solar Chromosphere ...... . 541 
Photometric Observations of Mira ........ 541 
Whe Eclipsesof Aipril 1722 eee eee ae 541 
A Second Meteorite Find in Scott County, Kansas . 541 
Astronomical Societies . oaths Se oie oS 541 
The Museums Association at Dublin ...... 548 
A New System for Preventing Collisions at Sea, 
By W. H. W.. ; Rh | sf seme ice camamne 542 
Researches at the Vienna Radium Institute. By 
lie Sh ee Wes 5.58 ED ce 543 
Experimental Research in Aéronautics. .... . 543 
University and Educational Intelligence ..... 546 
Societiesjand Academies: _, Qs eycee te Sees 546 
BooksiReceived. \....:.:. .:” c geen aes eee 548 
