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THE PROGRESS OF INVENTION 1
STEAM NAVIGATION 6
STEAM CARRIAGES AND RAILWAYS 32
THE AIR ENGINE 60
PHOTOGRAPHY 67
DISSOLVING VIEWS 86
THE KALEIDOSCOPE 92
THE MAGIC DISC 98
THE DIORAMA 103
THE STEREOSCOPE 112
THE ELECTRIC TELEGRAPH 124
ELECTRO-MAGNETIC CLOCKS 172
ELECTRO-METALLURGY 179
GAS LIGHTING 188
THE ELECTRIC LIGHT 209
INSTANTANEOUS LIGHTS 214
PAPER MAKING MACHINERY 221
PRINTING MACHINES 230
LITHOGRAPHY 249
AERATED WATERS 258
REVOLVERS AND MINIÉ RIFLES 266
CENTRIFUGAL PUMPS 275
TUBULAR BRIDGES 282
SELF-ACTING ENGINES, INCLUDING THE NASMYTH STEAM HAMMER 295