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Amongst many unsolicited Testimonials the following has been received by the maker:

EDINBURGH, May 31, 1889. DEAR SIR,-I have just returned from a six weeks' stay at the Ben Nevis Observatory, and while there had an opportunity of testing the admirable qualities of your new "Watkin' Aneroid. The result has been most satisfactory, the extreme error noted being only about ro of an inch. During my stay at the Observatory the Aneroid was Frequently tested by taking

t down 2000 feet and then
omparing it with the stan
lard on my return. The
results obtained speak vol-
umes for the high-class
workmanship and great ac-
curacy you have attained
in the manufacture of this
instrument.

(Signed) R. C. MOSSMAN,
F.R.M.S., Observer,
Scott. Met. Soc.

To be obtained of all Opticians and Wholesale Houses. J. J. HICKS, 8, 9, & 10 HATTON GARDEN, LONDON. "The 'STAR MICROSCOPE is a modern marvel at its low price.

[All Rights are Reserved.

BROWNING'S

MICROSCOPE.

The body is made entirely of brass and gun-metal, with rack-motion and fine screw adjustment. Three achromatic powers (separable) of excellent defining power, 1-inch, 4-inch, and 4-inch; adjusting slide-holder to stage, revolving The whole packed diaphragm, hand-forceps, stage-forceps, live-cage, &c.

in upright Mahogany Cabinet, with drawer for slides, dissecting-knives, &c.
PRICE £3 15s. Od.

New Illustrated Catalogue of Microscopes free.
JOHN BROWNING, 63 Strand, London, W C.

The lenses alone are worth the money."-British Medical Journai. THE SEA-LEVEL ANEROID

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THE VICTORIA UNIVERSITY.

THE EXTERNAL EXAMINERS OF THE UNIVERSITY. JAMES ADAM, M.A., Fellow and Tutor of Emmanuel College, Cambridge, Examiner in Greek.

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ALEXANDER HENRY, M.A., LL.B., Professor of Jurisprudence in
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C. H HERFORD, Litt. D., Professor of English Literature in University
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W. M. HICKS, M.A., Professor of Mathematics in Firth College, Sheffield,
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Scie .ce, London, Examiner in Zoology.

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Mary's Hospital, London, Examiner in Pathology.

+GEORGE R. M MURRAY, F.L.S., Senior Assistant, Department of
Natural History, British Museum, Examiner in Botany.

Rev. T. I. PAPILLON, M.A., late Fellow and Tutor of New College,
Oxford, Examiner in Latin.

WILLIAM RAMSAY, Ph.D, F. R.S., Professor of Chemistry in Uni-
versity College, London, Examiner in Chemistry.

CHARLES S. SHERRINGTON, M.B., Lecturer on Physiology in St.
Thomas's Hospital, London, Examiner in Physiology.

A. R. SIMPSON, M D., F R.C. P., Professor of Midwifery in the University
of Edinburgh, Examiner in Obstetrics and Diseases of Women.
ARTHUR L. SMITH, M. A., Fellow of Balliol College, Oxford, Examiner
in History.

THOMAS STEVENSON, M.D., F.R.C.P., Lecturer on Chemical and
Medical Jurisprudence. Guy's Hospital, London, Examiner in Forensic
Medicine and Public Health.

RALPH STOCKMAN, M. D.. Examiner in Materia Medica and Pharmacy
and in Pharmacology and Therapeutics. (Eligible for re-election.)
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Cambridge, Examiner in Philosophy and Political Economy.

The Examiners against whose names a dagger (t) is placed retire at the end of November. Applications are invited for the posts they now fill, which should be sent in on or before NOVEMBER 29. and may be accompanied by Testimonials (Copies only) or References, at the Candidate's discretion. The appointments will be for Three Years. Examiners who have served a full term are not eligible for re-election.

For further Particulars, apply to
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A. T. BENTLEY, M.A., Registrar.

SCIENCE SCHOLARSHIPS.

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Principal

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Students are regularly sent to the College by Leading Educational
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WANTED a Science Professor for the
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University. Experienced if possible in Tuition. Might be required to
teach Mathematics as well. Must be Member of one of the Protestant

Mathematical Instrument Manufacturer to H.M. Government, Counc
India, Science and Art Department, Admiralty, &c.
Mathematical, Drawing, and Surveying Instruments
of every description.

Of the Highest Quality and Finish, at the most Moderate Prices
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W. F. S. obtained the only Medal in the Great Exhibition of 156
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matical Work. Silver Medal, Architects' Exhibition, 1886.
Address:-GREAT TURNSTILE, HOLBORN, LONDON, W.C

TO SCIENCE LECTURERS.

See Mr. HUGHES'S PATENT COMBINATION OPTICAL LAS TERN, used by late W. LANT CARPENTER, Esq., Prof. FORBES Triple constructed for B. J. MALDEN, Esq., this season. New Oxyhyd gen Microscope. Grand Results Docwra Triple, Prize Medal, Hig Award. Supplied to the Royal Polytechnic Institution, Dr. H. GRATT GUINNESS, Madame ADELINA PATTI, &c. Patent Pamphagos La Science Lecture Sets. Novelties Cheapest and Best. Elaborately I' trated Catalogue, 300 pages, 15.; Postage. 5d. Smaller do.. 6d. Pam lets Free.-HUGHES, SPECIALIST, Brewster House, Mortimer R Kingsland, N.

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SCIENCE MASTER required for a Colonial College. Only Graduates in Science of the University of London eligible. Salary about £420 per Annum. The selected Candidate will have to leave England in DECEMBER. Apply to ASKIN, GABBITAS, and THRING, 36, Sackville Street, London, W.

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