Management of a Furnace, 59.

Manager of a Glass-house, 92.

Manganese in Flint Glass, 70.

Manipulations of Glass-making, 80.

Manipulatory Conditions of Glass-making, 40.

Manipulatory Processes described, 84.

Marver, the, work of, 82.

Melting Pots, Manufacture of, 50, 51, 52, 53.

"Metal," Varieties of, 91.

Metals for tinting Glass, 76.

Millefiore Glass of Venice, 25.

— —, how made, 110.

Minutoli's Analyses of Coloured Glasses, 77.

Mosaic Glass, ancient, 17.

Mosaic Glass in the British Museum, 18.

Mosaic Glass, Roman and Venetian, 26.

Mosaic Specimens described, 143.

Mosaic Work, how managed, 110.

Mosaic and Millefiore Glass, 141, 142.

Moulded Bottles, to make, 102.

Moulded Roman Pillars, to make, 104.

"Moves" in Glass making, 90.

Museum of Economic Geology, curious Glass in, 16.

New application of Glass wares, 32.

Naples Vase described, Plate 1, 131.

"Omnibuses" used in Annealing, 66.

Opaque Hard White Enamel, constituents of, 34.

Opaque Soft White Enamel, constituents of, 34.

Optical Glass, Constituents of, 37.

— — Experiments, by Guinand, Frauenhofer, Bontemps, &c., 41, 42, 43.

Orange Glass, Common, Constituents of, 34.

Outline forms of Glass, new, 128.

Payment, Mode of Glass-making, 87.

Phœnicians stated to have discovered Glass-making, 2.

Pictures of Mosaic Glass, 25.

Pillar-moulding improvement, 125-126.

Pliny, his account of the discovery of Glass-making, 2.

Pompeii, Glass discovered at, 2, 6.

Pompeii, Glass Vase found at, 18.

Ponty, or Pontil, use of, 82.

Portland Vase, the, described, 19, 20, 132.

Potash in Glass-making, 36.

Pot, to set in the furnace, 53.

Pots for various Glasses, 50-51-52-53.

Pressed Glass invented in America, 31.

Pressing Glass, operation of, 121.

Pucellas, use of the, 81.

Red Lead in Glass-making, 37.

Retort, to make, 95.

Ringed Decanter, to make, 101.

Roman and Early British Glass found in Suffolk, 12.

Roman Fragments described, 136.

Roman Glass found in London, 10, 13.

Roman Glass in the days of Nero, 7.

Roman Glass in the British Museum, 8.

Roman Glass-cutting, 15.

Rosettes, Welded, for Windows, 117.

Ruby Red Glass, constituents of, 34.

Saltpetre in Glass-making, 37.

Sands for Glass-making, 35.

Sardonyx, Crude, Artificial, described, 142.

Saxon Glass found at Cuddesden, Oxon, 13.

Schools desirable in Glass-houses, 129.

Scolloping or Cutting, 96.

Separation by Contraction in Glass, 40.