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ADVERTISEMENTS.
193
BOYLE'S
PERFECT SYSTEM OF VENTILATION.
Churches, Halls, Schools, Mansions,
Factories, Stables, &c.. Ventilated on
Scientific Principles, and in accordance with
the Laws of Nature, by means of
BOYLE'S
TT\~\-f1-r
PATENT Self-acting AIR-PUMP VENTILATORS,
Which effectually extract the Foul Air, have no Mechanical Motion, and are Entirely
Free from Down Draught ; can be constructed to harmonise with every style
of Architecture, and are pronounced by the most Eminent, Scientific, and
Practical Men in the Kingdom, to be the most Efficient System of Ventilation
yet brought out.
Improvea appliances for admitting fresh air, warm or cold, without draughts or currents.
B O Y I. K'S
PERFECT SYSTEM OF SANITATION.
Soil Pipes, Drains, and Sewers Ventilated on the most approved principles by
means of BOYLE'S PATENT SELF-ACTING AIE-PUMP VENTILATOKS,
combined with an Improved Trap and Inlet for Fresh Air.
ESTIMATES GIVEN AND DESIGNS SUPPLIED.
Prospectuses, Price Lists, and Testimonials on application.
Ventilating and Sanitary Engineers,
110 BOTHWELL STREET, GLASGOW.
Mansion House Buildings, - - - LONDON.
W0RK8-154^ BOTHWELL 8TREEL GLASGOW.

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