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N EWTO N & CO.,
3, FLEET STREET,
LONDON,
Scientific Instrument Makers
To Her Majesty the Queeen and the Prince of Wales.
NEWTON & CO.'S Lanterns and Slides are
now used by the Royal Society, the Royal
Institution of Great Britain, the Royal Dublin
Society, the Science and Art Department, the
Royal College of Science (South Kensington), the
Universities of Oxford, Cambridge, Edinburgh, Glasgow,
Dublin, &c., the principal Public Schools, many
of the County Councils, and the principal foreign
Universities, Colleges, and Scientific Institutions.
THE
"Newtonian"
OIL-LIGHT AND
LIMELIGHT LANTERNS
Have been adopted as
the Official Patterns by
the Admiralty, the War
Department, and the
London School Board.
" DEMONSTRATOR'S "
FOR OIL OR LIMELIGHT.
With prism for Erecting,
and for Vertical Projecti
PRICE £9 9s.
NEW PATENT
LANTERN,
The most simple
and efficient Single
Lantern yet constructed
for general
scientific work.
NEW CATALOGUE
of Lanterns, Projection
Apparatus,
and Slides, Post
Free, 6 Stamps.
Addition of camphor to petroleum,
8
Adjustment of chimney of oil
lamp, 9
Adjustment of the light, 74
of the lime, 40
of oil lamps in the
lantern, 10
Alum cell, the, 88
Anderton's stereoscopic lantern,
96
Annealing cylinders, 26
Aphengescope, 88
Arc lamp, 46
9>
carbons for, 49
connections for, 49
Davenport's, 48
resistances for, 49
the " Scissors," 47
77 7> wires for, 50
Argand lamps, 5
77 7/ for coal gas, 36
Arrangement for showing opaque
objects, 87
Arrangement for vertical projections,
88
Arrangement of room for lantern
displays, 67
Ascertaining the contents of a
cylinder, 29
Atmosphere, action on limes of
the, 16
INDEX.
Bags for gas, 18
Beard's regulator for compressed
gas, 26, 32
Benzoline for saturators, 35
Biunial lanterns, 53
Blackening of the lime, 33
Blow-through or safety jets, 12,
39
Body of the lantern, 51
Cakes of manganese and
chlorate, 22
Calculations of objectives, 65
Camphor, the addition of, 8
Carbons for arc lamps, 49
Care of cylinders, 31
Carriers for slides, 55
the Eclipse, 56
Cell for decomposition experiments,
90
Chadwick's oxygen retort, 21
Charging gas bags, 23
Chimney of oil lamp, its adjustment,
9
Chlorate of potassium, 22
Choice of a lantern, 2, 4
Chrornatropes, 79
Coal gas used alone in lanterns,
36
Colza lamps, 5
Comparison of illuminants, 2, 4
Compressed gases, 25