o> * 
396 
selecting for the theme of his discourse, the subject of Micro- 
petrography—a subject in which a vast amount of work remains to 
be done—one, it is feared, not so much known as it deserves to 
be, and much misunderstood. Workers are needed to follow up 
the lines of research of Rosenbusch, Lasault, and Fuchs, who 
are working out the correlation of petrography and petrology, 
the structure in regard to the position of the rock mass. Asan 
an appendix to his address, Prof, Macalister gives an im- 
portant bibliography of the subject of Microgeology. Prof. E. 
Hull, F.R.S., was elected President for the ensuing session, 
PARIS 
Academy of Sciences, March 10o.—M. de Quatrefages, 
president, ‘in the chair.—M. Berthelot took his seat as a 
member of the Academy. ‘The following papers were read :— 
On Father Secchi’s new hypothesis by M, Faye. The author 
replied to the Rev. Father's late note by proving that he had 
first stated that the solar spots were craters of eruption, and 
next that they were not eruptions, but were caused by them 
being in fact the erupted matter cooled by its passage above the 
chromosphere, the faculz being the centres of eruption.—M. 
Faye showed this to be incompatible with the observed facts, 
the spots being surrounded with faculze, whereas, according to 
Secchi’s last theory, they ought to surround facule.—On the 
circulation of solar hydrogen, with an answer to some remarks by 
M. Tacchini, by M. Faye, treated of the spot phenomena ; the 
author thinks that hydrogen is drawn down by the cyclones and 
returns to the surface around them. He also suggested that D, 
would probably be found to belong to a very rarified hydro- 
carbon of the acetylene series.—On the density of the vapour of 
phosphoric chloride, by M. Wurtz, who found that when precau- 
tions were taken, to prevent dissociation, the normal two volumes 
was occupied, experiment giving 7°226, and theory requiring 
7°217.—On the springs of the Seine basin by M. Belgrand.— 
Researches on the action of the tympanic chord on the circula- 
tion in the tongue, by M. A. Vulpian.—On the industrial pro- 
duction of cold by the detention of permanent gases and of air in 
particular, by M. Armengaud.—On the production of silent 
electric discharges and on their mode of action, by M. Boillot.— 
Experiments on putrefaction, &¢., by M. Laujorrois.—On the assi- 
milability of phosphates, by M. H. Joulie.—A note on the unity 
of force and of matter, by Madame C, Royer.—On the theory of 
solar spots, by M. Tacchini, was an answer to M. Faye. The 
author contends that the hydrogen carried down by the cyclones 
ought to return up their axes, and not around them ; and as this 
is not the case, he thinks that his criticisms remain unrebutted. 
—A paper on the trajectories of points, &c., by M. Mannheim.— 
On benzylated naphthalin, by M. Ch. Frotté, The body in 
question is produced by the action of benzylic chloride on naph- 
thalin in the presence of powdered zinc.--On a combination of 
urea with acetylic chloride, by M. D. Tommasi. An atom of 
hydrogen in urea is replaced by the acetyl compound.—On the 
composition of guanos, &c., by M. A, Baudrimont,—On asphyxia 
and on the causes of the respiratory movements in fishes, 
by MM. Grchant and Picard.—On the influence of am- 
monia in manufactories where mercury is employed, by 
M. J. Meyer. The author asserts that he has succeeded 
in stopping all the terrible effects of mercurial poison- 
ing in the silvering rooms of the Saint Gobain glass works by 
watering the floors every evening with half a litre of commercial 
ammonia. He states that since 1868 he has not had a single 
workman attacked.—On the saccharine matter of mushrooms, 
by M. A. Miintz—On the normal microzymes of milk as the 
cause of the coagulation and alcoholic, acetic, and lactic fermen- 
tations of that liquid, by M. A. Béchamp.—On the quaternary 
fossils collected by M, Célert at Louverne (Mayenne), by M. A. 
Gaudry.—On the existence of man in Alsace during the glacial 
epoch, by M. Ch. Grad.—On the movements of the atmo- 
sphere as regards the prediction of weather, by M. de Tastes. 
—On the use of vermouth, by M. E. Decaisne. The author 
thioks that the use of this liquid as a drink ought to be 
abandoned. 
DIARY 
THURSDAY, Marcu 20. 
Royat Society, at 8.30.—On the Distribution of Vertebrata in Relation to 
the Theory of Evolution: Dr. J, D. Macdonald.—On the Temperature at 
which Bacteria, Vibriones, and their supposed Germs are killed when im- 
mersed in Fluids or Exposed to Heatin a Moist State: Dr. Bastian.— 
ue N ew ‘Theorems on the Motion of a Body about a Fixed Point: E. J. 
outh. 
Socinry or ANTIQUARIES, at 8.30.—On the Hunnebedden of Drenthe in 
the Netherlands ; Miscellaneous Antiquities: Governor Gregory. 
NATURE ~ 
. ae . my 
x n ee Pe oa a? 
. - . ° - aie we a 
(Mar. 20, 1873 
ZOOLOGICAL SOCIETY, at 4. Lf em 
Linnean Society, at 8.—On the “‘ Take-all” Corn Disease of Australia: 
Dr. Miicke. P 
Cuemicat Society, at 8.—On Iron and Steel: C. W. Siemens. 
Royat InstTiTuTIon, at 3 —The Chemistry of Coal and its Products: A. V, 
Harcourt, 
FRIDAY, Marcu 2r. - 
Roya INnsTITUTION, at 9.—On the Mythology of India: E. D. Lyon, 
OLp CHANGE Microscopicat Society, at 6.30.—Annual Meeting. 
Roya. CoLLeGE OF SURGEONS, at 4.—Extinct Mammals; Prof. Flower. 
QuexetrT CuUvs, at 8.—Conversazione. 
SATURDAY,EMARCH 22. 
Royat InsTITUTION, at 3.—Darwin’s Philosophy of Language: Max — 
Miiller, 
SUNDAY, Marcu 23. 
Sunpay Lecture Society, at 4.—The Theory of Stringed Musical In- 
struments: W. H. Stone. 
MONDAY, Marcu 24. 
GroGRAPHICAL SociETY, at 8.30.—Notes on Khiva, and Routes leading to 
that country: Major-Gen Sir H. C. Rawlinson, K.C.B., President. 
Lonpon INSTITUTION, at 4.—Fungoid Organisms: Prof. Thisclton Dyer, 
Roya CoLiece or SURGEONS, at 4.—Extinct Mammals; Prof. Flower. 
TUESDAY, Marcu 25. J 
Roya INsTITUTION, at 3.—Forces and Motions of the Body: Prof. 
Rutherford., 
WEDNESDAY, Marcu 26, 
Roya CoLLece oF SURGEONS, at 4.—Extinct Mammals: Prof, Flower. 
Lonpon InstiTuTION, at 7.—Courts of Special Commercial Jurisdiction ; 
N. H. Paterson. 
Society or ArTs, at 8.—Oun the Edible Starches of Commerce: P. L. 
Simmonds. 
GroLocIcaL Society, at 8.—Synopsis of the Younger Formations of New 
Zealand: Capt. F. W. Hutton.—On the Tree-ferns of the Coal-measures 
and their Relations to other living and fossil forms; W. Carruthers.—Notes 
on the Geology of Kazirin, Persia: A. H. Schindler, 
ARCHAZOLOGICAL ASSOCIATION, at 8. 
Royat Society or LITERATURE, at 8.30.—The Rhodian Law, and its con- — 
nection with the Laws of Medizval Europe: W. S. W. Vaux. 
Socisty or TELEGRAPH ENGINEERS, at 7.30.—On a new method of testing 
short lengths of highly Insulated Wire: Prof. Fleeming Jenkin.—On some 
points in connection with the India Government Telegraphs; W. E, 
Ayrton. 
THURSDAY, Marcu 27. 4 
Royat InstTiTuTION, at 3.—Coal and its Products: A. V. Harcourt. 
Roya Sociery, at 8.30, » 
Society OF ANTIQUARIES, at 8.30 
BOOKS RECEIVED 
EncutsH.—A Manual of Metallurgy: G. H. Makins (Ellis & White),— 
The Atmosphere, Ed. by J. Glaisher (Sampson & Low)—The University 
Oars: Dr. J. E. Morgan (Macmillan).—Chaureau’s Comparative Anatom: 
of the Domesticated Animals. 2nd edit. Translated by G. Fleming(Churchill). 
The Scientific Bases of Faith: J. J. Murphy (Macmillan).—Mensuration: 
D. Munn (Chambers).—Essay on the Physiology of the Eye: S. H. Salom 
S. H. Salom).—The Year Book of Facts, 1873: J. Timbs Coco 
team in the Engine; its Heat and its Work: P. Kauffer (Blackie)—Re- 
sults of Meteorological Observations made in the Royal Observatory, Cape 
of Good Hope: Sir Thos. Maclear (Solomon).—Chemistry for Schools ; an 
Introduction to the Practical Study of Chemistry. 2nd edit : C. H. Gill 
(Stanford).—Handbook for the Physiological Laboratory; Brunton-Foster, 
Klien, and Sanderson. 
Amertcan.—One Law in Nature: Capt. H. M, Lazelle (D. V. Nostrand, 
New York). 
PAMPHLETS RECEIVED 
AMERICAN.—United States Commission of Fish and Fisheries, Pt. x. 
Report on.—Condition of the Sea Fisheries of the South Coast of New Eng- 
land in 1871-2; S. F. Baird.—On the Glacial and Champlain Eras in New 
England: J. Dann.—Proceedings of the Academy of Natural Sciences, — 
Philadelphia. 
- 
CONTENTS PAGE 
PERCEPTION AND INSTINCT IN THE LOWER ANIMALS « « «+ «© + «© 377 
SEPULCHRAL MONUMENTS OF CoRNWALL, II... . « . «© © + « «© 378 
Letrrers To THE EpIToR:— 
New Experiments on Abiogenesis.—Prof. D, HuIzINGA. . . . 380 
The Janssen-Lockyer Method.—Prof. BALFoUR STEWART, F.R.S. 384 
Mr. Mallet’s Theory of Volcanic Energy.— Rosert MALLET, F.R.S 382 — 
Effect of Resistance in Modifying Spectra.—Prof. TYNDALL, F.R,S 384 
Perception in the Lower Animals . . . . ... + + « + + + 384 
Possession Istes. By R. H. Scott and Dr. Hooker, C.B., F.R.S._ 384 
Earthquake Waves . ¢ iis > 5 Jo sites 0 les! = 
THE CHALLENGER ExpEpITION (With Illustrations.) By Prof. vs 
Wyvitie Tuomson, F.R.S., Director of the Scientific Staff of the 
Challenger Expedition, Sis) s 2 + + + = 5 «= = & allen 
Pror. FLower’s HuUNTERIAN LECTURES. . . . + « © + « + «© 388 
‘TEsTIMONIAL TO Dr. BENCE JONES . owiehe te, =: | ee. 
Caprain M. F. Maury semen ns 5 «© ol os 
NOTES 2 o's. 0s  CUMREe Se) nee sa al ce 
Tue BirtH or Cuemistry, VIII. By G. F Ropwe tt, F.C.S. (Weth 
Tlisstrasions.) % . siineis’) <he ss ‘«. sc fojminhteie nam 
MCIENTIFIC SERIALS... csMADB le fs 2 0s 6 =. 8) elastase 
SocreTIEs AND ACADEMIES + + ¢ «© - + s+ ss « @ ee » 305 
Books AND PAMPHLETS RECEIVED... «5 ws ee es + 398 
DRARY 5-96 wi) 2 os) CEREREIE w) oe eee 
