A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE 
‘© To the solid ground 
Of Nature trusts the mind which builds for aye. 
”__WORDSWORTH 
No. 827, VOL. 32] 
THURSDAY, SEPTEMBER 3, 1885 
[PRICE SIXPENCE 
Registered as a Newspaper at the General Post Office] 
[All Rights are Reserved 
% MICROSCOPISTS, 
ASTRONOMERS, 
SURGEON DENTISTS. 
THE SWAN LAMP 
AND FITTINGS may be purchased at 
MAWSON AND SWAN’S STORE, 
31, FARRINGDON STREET, E.C., & MOSLEY STREET, 
NEWCASTLE-ON-TYNE. 
BINOCULAR TELESCOPES: 
These Instruments are the most 
powerful Binoculars that can be made 
to be sufficiently portable for the 
tourist’s use; their magnifying power 
is very great. They should be re- 
garded as Telescopes ; and where there 
is a sufficient amount of light, objects 
may be easily made out by them which 
would be invisible with any ordinary 
Binocular. 
BINOCULAR TELESCOPE, 
with turning motion in centre 
to adjust it to the width of the 
eyes, in Solid Sune Leather 
Case bon ts 
Illustrated C praleeser Binoculars post 
fi re" 
JOHN BROWNING, 
63, STRAND, LONDON, w.c. 
R. & J. BECK’S 
NEW MICROSCOPE, 
ol EE: a SeleAslaa 
PRICES. ey Sas 
Stand, with 1-in. Object- 
(HESS codes stets WocOumcoeh feo ore 21) 
Stand, with r-in. and 4-in. 
@bject-plassesi.-se sl -- tua 
Stand, with Rack and Pinion, 
coarse adjustment, 2 Eye- 
pieces, and 1-in. Object- 
glass ... Bh ey (0) 
Full Descriptive Pamphlet sent on 
A pplication to 
R. &J. BECK, 68, Cornhill, London, E.C. 
GOLD MEDAL 
International Inventions Exhibition, 
1885. 
NEGRETTI AND ZAMBRA, 
SOLE MAKERS OF FORDAN’S (PATENT ) 
SUNSHINE RECORDER, 
PRICE £3 3s. 
NEGRETTI 
an Scenic ssonun ees 
HOLBORN VIADUCT. 
Branches :—4s, Cornhill ; 
122, Regent Street, London 
Lilustrated Description Post Free. 
NEGRETTI & ZAMBRA’S 
Large Illustrated Catalogue. 
600 Pages, 
1200 Engravings. 
Price 5s. €d. 
Silver Medal awarded Tiienions Lxhibition, 1885. 
