190
ADVERTISEMENTS.
KELSO & CO.,
MANUFACTURING OPTICIANS, ELECTRICIANS
AND MODEL MAKERS.
SURVEYING AND MINING INSTRUMENTS OF EVERY DESCRIPTION.
MERCURIAL AND ANEROID BAROMETERS.
HYDROMETERS & THERMOMETERS. SALINOMETERS IN METAL & GLASS
TELESCOPES; FIELD, MARINE, AND OPERA GLASSES
SPECTACLES
AND
i
SITE] o- L .a. s s :m s,
IN GOLD. SILVER, AND STEEL.
MODELS TO J^ISTIT SIZE OK- S C .A. Xj B
On one-fourth and one-eighth Scale, always in Stock or Progress, as supplied by ui
to the principal Shipbuilders throughout the United Kingdom.
ELECTRIC AND PNEUMATIC BELLS AND INDICATORS.
ESTIMATES GIVEN foe the FITTING-UP of SHIPS, HOUSES, OFFICES, PITS, &c
43 UNION STREET, GLASGOW,