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ADVERTISEMENTS.
209
BOYLE S
SELF-
AIR.PUMP
These VENTILATORS are
pronounced by the most eminent,
scientific, and practical men in the
kingdom to be the most efiicient
system of Ventilation yet brought
out. They extract the foul air
T:%*^>gwT;.^
PATENT
ACTI NG
VENTILATOKS.
draughts or currents — so much
complained of. Being continu-
ous in operation, and having no
mechanical movement, they can
never get out of order, and require
no attention, and can be con-
structed to harmonise with every
style of architecture. They are,
therefore, most admirably adapted
most effectually from ships and (j)^\\\l!i|li!l
buildings of every description,
and are entirely free from down
for the Ventilation of Churches, Schools, Public Buildings, Dwelling-Houses, &c., &c.
Testimonial from Sir William Thomson, LL. D. , Professor of Natural Philosophy, Glasgow College.
I have seen several different forms of Mr. Boyle's Air-Pump Ventilator in actual operation, and have
much pleasure in testifying to their efficiency. They thoroughly realize the favourable anticipations
which I formed from experiments on models shown to me by Mr. Bo_vle. One of the simplest forms haa
been applied to a stove flue in my yacht, and has caused a verv decided improvement in the draught.
' WILLIAM THOMSON.
EGBERT BOYLE & SON,
PATENTEES ^ MANUFACTURERS.
Offices and Show Rooms —
100 Mitchell Street, Glasgow, and Mansion House Buildings, London.
Branch — 8 Corporation Street, Manchester. Works — 154^ Bothvjell Street, Glasgow.
Prospectuses, Price List, and Testimonials to be had on application.
\%
II.LIAM HUME,
195 BUCHANAN STREET, GLASGOW.
IRON & WIRE
FENCING,
Gates and YFickcts,
WIRE NETTING,
ORNAMENTAI
WIRE WORK
FOR GARDENS,
GARDEN SEATS;
EIEdDl! STAMS
DOG KENNEL
RAILINGS ;
PATENT
ASPHALTIC
EOOFING TELT
AND COATINa;
PUMPS AND GARDEN Ef
IRON WINE BINS.
GINES;
Agent for Messrs. S. OWEKTS & CO., Hydraulic Engineers, London.
Agent for Messrs. GUEST & GHEIMES, Brassfounders, Botherham.

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