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NATURE 
tionand ofitscompounds. The formula ofazophenylen is C,,H,No. 
Bytheaction of ammoniaon it a body having the formula C,,H,,N. 
is produced.—On diiodhydrin, by the same author. This body 
has the formula C;H,I,0.—On the action of ammonia on di- 
chlorhydrin, by the same. The result of the action is the pro- 
duction of chlorhydrinimid, a body of the formula C,,H,,N,Cl,O4. 
-—Preparation of dichlorhydrin, by the same. The method con- 
sists in acting on glycerin with chloride of sulphur,—Applica- 
tion of the periodic law to the cerium group, by D. Mendelejeff. 
—On the preparation of ethylen and its bromide, by E. Erlen- 
meyer and H. Bunte.—On the action of nascent hydrogen on the 
oil of bitter almonds, by Hugo Amann.—On the bromised 
benzol sulpho acids, by A. Woelz. The author has prepared 
dibrombenzol sulpho-acid, and gives an account of its salts and 
of its reaction with fused potassic hydrate.—An investigation of 
piperin and its products of decomposition, piperic acid and pi- 
peridin, by R. Fittg and I. Remsen.—On ethylen-proto- 
catechuic acid by the same author, and T. Macalpine.—New 
compound of the Naphthalin group, by J. P. Battershall.—On 
the action of a mineral sulphur water on cast-iron, by Dr. E. 
Priwoznik. The author found an iron water-pipe, through which 
this wa -r passed converted as regards its inner side into a mix- 
ture of sulphide of iron, hydrated oxide of iron and free sulphur. 
The centre stratum was also altered, containing only 79:2 per 
cent. of iron.—On sulph-hydantoin (glycolyl-sulpho-urea) by R. 
Maly.—Determination of boiling points at the normal barometric 
pressure, by Dr. H. Bunte.—Preparation of trimethyl-carbinol, 
by Linnemann’s method, by A. Butlerow. 
SOCIETIES AND ACADEMIES 
LoNDON 
Royal Microscopical Society.—The opening meeting of 
the session was held at King’s College, Oct. 1, C. Brooke, 
F.R.S., president, in the chair.—The secretary read a paper by 
Dr. Maddox descriptive of an organism found in a pond of fresh 
water in the New Forest, near Lyndhurst, which it was proposed 
to name Pseudo-ameba violacea. The general appearance of the 
organism was minutely described and figured, and the results of a 
series of continuous observations upon a growing slide under the mi- 
croscope were detailed. —A paper by Mr. F. Kitton, of Norwich, 
describing some new species of Diatoms, was taken as read, and 
the attention of the meeting was called by the president to one 
of great beauty named by Mr. Kitto Aulacodiscus superbus.— 
Mr. F. H. Wenham made some interesting observations upon 
the microscopical appearance of glass which had been subjected 
to the action of the American sand-blast process, showing that 
the erosion of the surface was entirely due to the percussive force 
of the particles of sand, and that the results of this were demon- 
strated by the polariscope. A number of specimens were ex- 
hibited in the room.—Mr. C. Stewart, the hon. sec., exhibited 
under the microscope, and minutely described, a beautiful pre- 
paration of the spermatophores of the common squid ; he also 
explained and illustrated the general structure of the generative 
organs of the male cuttle-fish. 
PHILADELPHIA 
Academy of Natural Sciences, April 3.—Conchological 
Section.—Dr. W. S. W. Ruschenberger, in the chair,—Dr. 
F. A. Hassler presented the following memorandum of experi- 
ments by W. M. Gabb and himself to ascertain the tenacity of life 
in Littorina muricata. The specimens, 140 in number, were col- 
lected by Mr. Gabb in St. Domingo, September 1870, and hung in 
a basket in his office. A few (five or six) were moistened after 
three months, then each month until May 1871, when all were 
alive. May, June, July, and August, r871, 25 were moistened 
each month, and all found to be living except two in July and 
two in August. These were each month laid aside and not 
moistened again until September. At this time 40 of the ori- 
ginal lot remained, all were moistened, and 29 found to be alive. 
In September, of the roo which had been moistened during May, 
June, July, and August, 89 were alive. The 118 living ones were 
all placed together Feb, 18, 1872, the lot was again moistened 
and about 60 revived at once, and after several hours all but 24 
were or had been crawling. These 24 were rejected. March 
30, 1872: of the remaining 94, ten were moistened, nine were 
alive ; these nine were placed aside with a few which had given 
evidence of life since the last experiment, Feb. 18. Sept. 18, 
1872: all moistened and found living ; they were also all alive 
in December. On Feb, 12, 1873, two found to be dead, and 
were separated from the others. March 26: All moistened, and 
though exposed for three days, only one began to crawl; this 
one was separated, also 27 others which were known to be dead, 
leaving 65 undetermined, 
- 
PARIS 
Academy of Sciences, Sept. 29.—M. Bertrand in the chair. 
—The following papers were read :—Notes on the yellow elastic 
tissue, and remarks on its history in relation to a memoir by M. 
Bouillaud, and some criticisms on it by M. Bouley, by M. E. 
Chevreul.—Researches on the elastic tissue of the elephant and 
the ox, by M. Chevreul.—New researches on the analysis and 
theory of the pulse, by M. Bouillaud. The author continued 
his former papers on this subject, dealing with the abnormal 
pulse in this paper.—Remarks on M. Bouillaud’s late paper on 
the pulse, by M. Bouley.—Reply to M. Bouley by M. Bouillaud. 
—Kemarks on No. 21 of the “ Mémorial de l’officier du Génie,” 
by General Morin. The general drew attention to many in- 
teresting notes on the late sieges of Paris, contained in this 
number.—Note on magnetism, by M. J. M. Gaugain. This was 
a fourth instalment of the author’s paper.—On the part played by 
gases in the coagulation of albumin, by MM. E. Mathieu and 
V. Urbain.—On a new method of treating cholera, and pro- 
bably yellow fever, by means of sub-cutaneous injections of car- 
bolic acid and carbolate of ammonia, by M. Déclat. The author 
recommended drinks containing carbolic acid in doses of from 
thirty to forty centigrammes per day, and from four to six in- 
jections of five grammes each of carbolic acid solution (24 per 
cent.). These doses are to be largely increased in severe stages 
of the disease. —Comparison of the Piylloxere vastatrix of galls 
with those of roots, by M. Max. Cornu.—On the size and vari- 
ation of the sun’s diameter, by S. Respighi. The author, in his 
letter, discussed Secchi’s late observations on the same subject.— 
On the action of the respiratory apparatus after an opening of the 
thoracic wall, by MM.G., Carlet and J. Straus. —On the classi- 
fication of the fish of the family of 7yigvide, by M. H. E. Sauvage. 
—Researches on the action of heat on the carbuncular virus, by 
M. C. Davaine.—On a deposit of Endogenites echinatus in the 
Museum (fossil vegetable collection), by M. E. Robert.—On 
the influence of sulphates in the producton of goitre in relation 
to an epidemic form of that disease in a barrack at St. Etienne, 
by,M. Bergeret. 
CONTENTS PAGE 
ForeIGN ORDERS OF MERIT . PRR 
Luppock’s “ MonoGRAPH OF THE COLLEMBOLA AND ,T'HYSANURA” 482 
MoNCKHOVEN’S PHOTOGRAPHY. . . . 2. 2 6 ss ew 482 
Our Bopk Sieur iia! oes aden) efcen a © (a) ONL waar 
LETTERS TO THE EpiTor :— 
Wyville Thomson and the Ventriculide.—L. Toutmin SmitH. 484 
Deidamia.—A. R:Guorms . . . « 2 ss eee 485 
Dr. Sanderson’s Experiments and Archebiosis.—Dr. H. CHARLTON 
BASTIAN, FURS: 5"<" i).0.- v.acils # p/n 0le ae 485 
Mr. D. Forbes’s Criticism of Mr. R. Mallet’s Volcanic Theory.— 
R. Marrer, PVR:S.2 5. 5). es 485 
On the Equilibrium of Temperature of a Gaseous Column subject 
to Gravity.—Principal F, Gururiz, LLB... . . . . ee 486 
The Sphygmograph.—A. H. GARROD. . . . + « + « se 486 
Venomous Caterpillars. . . ... . owe) ene 
Harmonic Echoes.—J. J. MurpHY . ......e0s se 487 
Carbon Battery Plates—T, W. FLetcuer, F.C... .... . 487 
Brilliant Meteor.—T..PERKINS . ..;. - « » =) se 487 
NortHern Limit of PHANEROGAMIC VEGETATION. By Dr. J. D. 
Hooxsr, C.B,, F:R.sSi sw... \s) 0) lps weer 437 
THE WeatpeN Boric. By Prof. J. Puups, F.R.S. ... . , 487 
Tae New Marine ANIMAL FROM WASHINGTON TERRITORY. By 
Dr. .P. L. Sccarer, F:R:SA0 3s )/. .S oC 487 
Tue Ray Society. €: le ade a) ble Co nla DS -_« 488 
On THE INTERNAL NosE oF THE PECCARIES AND Pics. By Dr. J. E. 
GRAY, ERS. es csi eet oo eee) en 488 
ON THE SCIENCE OF WEIGHING AND MEASURING, AND THE STANDARDS 
or WeIcuT AND Mzasurg, VI. By H. W. CuisHoLM, Warden of the 
Standards (With Illustrations) . . . . 1. 6. 0 1 a - . 489 
NOTES + oie + 5 o> ne ein tims oy ae ge = (ae ie 
BritisH Association, A —Sectional Proceedings ... . . - « 494 
c: » ” 0 es ee ign ey 
D. i * . 2 woe Soe 
Screnriric SERIALS 1.5, « Memes leet Mel, oc ae a e+ 6 499 
SocieTIES AND ACADEMIES « 6 « « 50a 
ee De 
_ Er2aTa.—Vol. viii. p. 480 rst col. |. 23 from bottom, for “ Kerson’s” read 
“ Henson’s” ; 1. 14, for “ Montague ” read ‘‘ Montagne.” 
