1926.] [ 
331] 
PROCEEDINGS OF LEARNED SOCIETIES. 
{4,si-. DOMESDIG), 
» Royal Ssciety,—-May. 25. ,The reading 
of the.paper on the burrowing and boring of 
marine animals, by|Edward) Osler, Esq., 
was, concluded. ) ( 
. June 1.—The following papers were read; 
Account) df some experiments relative to 
the passage of radiant heat through glass 
sereens, by, the Rev. Boden Powell. An 
account, of ja telescope, haying only , one 
redeetor; and of easy managemenf, in ob- 
senving, by the Rev. Dr. Abram, Robertson, 
Account ofsome experiments on the laws, of 
electrical accumulations on coated surfaces, 
by W. S. Harvis, Esq. On the construc- 
tion and use of a magnetic balance, by the 
same. . On the electrical conducting power 
of various metallic substances,.by the same. 
June 8.—The Bakeman lecture, on the 
relations of electrical and chemical changes, 
by, Sir H. Davy. |On, the discordance be- 
tween thesun’s observed and computed right 
ascensions, as determined at the Black- 
man-sireet Observatory; by. J. South, Esq. 
June, 15.—The, following papers were 
read, or announced.|, Observations on, a 
case of restoration of vision, by J. Wardrop, 
Esq. . On the existence ofa limit to, vapo- 
rization, by: M. Faraday, Esq... On electric 
and ‘magnetic, rotations, by .C.. Babbage, 
Esq-- On the compressibility of water, by 
T. Perkins, Esq.) On,;the, figure, of, the 
earth, by G.B Airy,,Esq. . Observations for 
determining ‘the amount of atmospheric xre- 
fexction atPort Bowen, byCapts W.E. Parry, 
Licuts. Ferster,and Ross....On, the \erystal- 
livaticn of uvie acid; by SinE. Home, Micros- 
copical observations on the muscular fibres 
of the elephant; by, Herbert Mayo, Esq. 
Lhe: Society then adjourned. till Thurs- 
day, November 16. 
Geological Society.—The following papers 
were read :—May 19. Notes on the geos 
logical position of some of the rocks of 
the IN. Ey \of Jecland, by, Lieut. | Port- 
lock, The conclusion drawn is, that the 
density and exystallized structure of basalt 
is not aficeted hy the amount of pressure. 
June 2.—On \the, fresh water strata, of 
Hordwell, Beacon, and. Barton, . Cliffs, 
Hants, -by)C. Lyall, Esq. 
- June :16.-—Noteson the geological strue- 
tune of Cader Kdrisy, by Arthur| Aikin, Esq. 
fiend wdhuwdn FA RALEN, 
Paris Institute, Academy of Sciences.— 
The only, communications, ot any interest 
' : 
wey node ur 
inst 
made during the Jastysittings were, the fol; 
lowing. M.| Robinet explained a process for 
removing stones from the bladder-by, means 
of chemical dissolvents, and displayed. his 
apparatus fox the. purpose. .M Geoffory 
St. Hilaire showed, two. remarkable cases 
of ineubation, where a. pullet’s egg con- 
tained twins. In) the first, instance, the 
subjects, had died. after about. the third 
part of the ordinary time of incubation hed 
elapsed ; that which had lived the longest 
continued to grow, and was about double 
the size of the other. In the second,ex- 
ample, the subjects had increased in. size 
till the incubation was finished; one emerg- 
ed from the shell and lived; the, other 
perished in its envelope and only on, the 
twenty-first day. Each bad a separate um- 
bilieal cord, but they were connected by a 
common canal going from one yolk to the 
other. In reply to a question that had 
been submitted by the Minister of the In- 
terior, regarding the use of hail-rods, M. 
Fresnel, in the name of the philosophical | 
department, said that the electrie theory 
of hail-does not rest.on a sufficiently, solid 
basis, and the effinity of hail-rods. ap- 
pears teo uneertain for us to recommend 
the employment of them. No attempt . 
hitherto made has given any positive result, 
and to decide the question. by suitable ex- 
periments wouid require much time and 
expence, disproportionate to the probability 
of success. MM. Arago presented an aerolite 
which fell in the. principality of Ferrara, 
January 19, 1826, which had been sent,by 
M. Creoli,, professor of natural) philosophy 
at Bologna, and of which. M. Cordier 
undertook the ‘mechanical analysis, by the 
microscope, ‘The statistical and mechani- 
cal prizes, founded by M. de Monthyon, 
were not) adjudged. this, year,)-but . the 
amount will be doubled for the ensuing one; 
if any deserving productions should appear, 
The decision of the physical prize was 
postponed. till March 4,,1827,. but, M,, 
Monthyon’s physological prize was awar 
ed to M. Breschet,. author of a memoinon 
the functions of the nervous system.) 
Royal. and Central. Society of Agriculture. 
—At the last public sitting five silver, and 
ten gold medals were adjudged. M..Po- 
lonceau, chief. civil, engineer at Versailles, ~ 
received one for his sueeess in, obtaining a 
crogs breed between the, Cachemire, goats 
and Angora bucks ; the hair of the. kids is 
in. much) greater quantity,and much more 
long.) wit 
= a atoertcaaceercaas ey 
iit oon, MU STSEY 
+ to ob 
UR 
“)PADENTS FOR! MECHANICAL AND CHEMICAL INVENTIONS. ~ 
stern th, July.5,2 months. / jo. a0, 
_To. Win... Paysons,, Dock-yard, Ports- 
TG Dae architect, for improvements 
