A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE 
“ 
Of Nature trusts the mind w/ 
0 the solid eround 
builds for aye.”—WORDSWORTIL 
No. 26] 
DHAURSDAY, ARIE, 28) 1870 
Registered for Transmission Abroad] 
[All Rights are Reserved 
BRITISH ASSOCIATION FOR THE 
ADVANCEMENT OF SCIENCE.—The next ANNUAL MEETING of 
this Association will be held at LIVERPOOL, commencing on Wednesday, 
September 14, 1870. 
President lect —PROJFESSOR HUXLEY, LL.D., F.R.S., F.G.S., 
President of the Ethnolog cal Society of London. 
Notices of Papers proposed to be read at the Meeting should be sent to the 
Assistant-General Secretary, G. GRIFFITH, Esq., M. A., Harrow. 
Information about Local Arrangements may be obtained from the Local 
Secretaries, Liverpool. 
ROYAL SCHOOL OF MINES, Jermyn- 
street.— Professor GUTHRIE will commence a course of Forty Lectures on 
Magnetism, Electricity, Sound, Light, and Heat on Monday, the 2d of 
May, at Two o'clock, to be continued on each succeeding week-day, 
Saturday excepted, at the same hour. Fe for the course £4. . 
TRENHAM REEKS, Registrar. 
ZOOLOGICAL SOCIETY'S LATEST PUBLICATIONS. 
Proceedings of the Scientific Meetings of 
the Society for 186, containing the Papers read at the Scientific Meetings. 
With coloured plates, 47s. 6d. cloth; with uncoloured plates, 14s, 6¢. cloth, 
Transactions of the Society, Vol. VII. 
Part. II., Price 30s., containing Papers by Prof. Owen, F.R.S., on Dinoris, 
Parts. XIII. and XIV. Prof. Flower, F.RS. Description of the Skeleton 
of the Chinese White Dolphin (Dedphinus sinensis.) 
These may be obtained at the Society’s Office, 11, Hanover Square, W.; 
at Messrs. LonGMAnS’, Paternoster Row, E.C. ; or through any Bookseller. 
Fourth and very much enlarged Edition, 70 Plates, 4 Coloured, ars. 
How to Work with the Microscope. By 
Dr. LIONEL BEALE, F.R.S. 
HARRISON, Pall Mall. 
NEW WORK BY DR. BEALE, F.R.S. 
Second Edition, 6s. 6d. 
Protoplasm; or Matter, Life, 
Eight Coloured Plates, with a new Section on MIND. 
JOHN CHURCHILL & SONS, 
Mind. 
Just published, price 1s. ~ 
As Regards Protoplasm, &c., by J. H. 
STIRLING, F.R.C.S., LL.D., Edinburgh. 
WILLIAM BLACKWOOD & SONS, Edinburgh and London, 
VoL, I, 
The GRAPHIC of April 30 will contain 
an Engraving of a SOIREE of the ROYAL SOCIETY, with Portrait 
Sketches ‘of 
THE PRESIDENT 
SIR FRANCIS GRANT 
REAR ADMIRAL HALL 
SIR E. RYAN PROFESSOR WILLIS 
MAJOR GEN. BOILEAU DR. MILLER 
And Messrs. GASSIOTT, DE LA RUE, GROTE, WHITE, Etc. 
COLONEL LEFROY 
SIR R. MURCHISON 
Price 6d. Unstamped. 7a. Stamped. 
_ The Grapuic is also published in Parts containing Five Numbers, bound 
inahandsome cover. Price 2s. od. 
“The Grapuic Portfolio” for holding loose numbers can also be 
obtained, Price as. 6d. 
Office, 190, Strand, W.C. 
ee Eee 
Eleventh Year of Publication. On the rsth of each month. 
L 1 7s. 6d. per 
annum, post free ; single copies, rs. each. 
The Chemist and Druggist; a Journal of 
the Trade and Science of Pharmacy. Each number contains Editorial 
Notes on Topics interesting to Pharmacists, Chemists, and Medical 
men ; Original Articles by well-known Scientific Writers ; Special Reports of 
the Proceedings of the Pharmaceutical Society of Great Britain, and of other 
Associations of Chemists and Druggists; Veterinary Notes: Records of 
Progress in Therapeutics, Dentistry, Homeeopathy, and Photography ; 
Illustrated Descriptions of New Inventions and Trade Novelties ; Reviews 
of Scientific and Commercial Books: Descriptive Lists of Patents; Notes 
and Queries ; Trade Memoranda, Reports and Price Lists, and a classified 
digest of the News of the Month. For Scientific Students, a number of 
Chemical, Physical, and Arithmetical Problems are provided ina special 
department entitled the “Corner for Students,” and two or more valuable 
prizes in the shape of scientific books are awarded to successful competitors 
each month. Carefully-executed lithographic portraits of eminent pharma- 
cists are issued occasionally. 
Publishing Office, Colonial Buildings, 444, Cannon Street, E.C. 
THE WEATHER.—“THE ANEROID 
is the best form of Weather Glass that has been made.”—Colonel Sir E. 
James, in his treatise on Meteorological Instruments. One of these very 
interesting and useful instruments, 34 inches diameter, sent on receipt of 
P.0.0 for £1, by JOHN BROWNING, 111, Minories, London. Packed 
and carriage paid 2s. extra. Prize Medal, 1862. Established 100 years. 
The trade supplied. Circular on receipt of stamped addressed envelope. 
Bragg’s Vegetable Charcoal or Pure 
CARBON BISCUITS, a nutritious, pleasant, and healthful diet, which has 
produced great benefit and positive relief to thousands of sufferers from 
indigestion, bile, acidity, foul breath, dyspepsia, heartburn, worms, &c, 
There is medical testimony to its beneficial effect in these complaints.—Sold 
in tins, Is., 2., 4s., and 8s. each, by all chemists, and by the manufacturer, 
J. L. BRAGG, 14 (late 2), Wigmore Street, Cavendish Square. 
KK 
