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Original Papers: Great Exhibition of the Works of all Nations.      33 
OriginaI papers. 
GREAT EXHIBITION OF THE WORKS OF INDUSTRY OF ALL NATIONS. 
Monthlty Report of Progress. 
WE were enabled in our last number to place before our readers the state-
ment which the Commissioners have issued, settling the broad general prin-
ciples for conducting the Exhibition. We are happy to accede to an official
request, and circulate this statement in full. We may, however, repeat a
summary of the principles, which are as follow :-The Exhibition is to open
on 1st May, 1851 ; objects are to be received in London between 1st January
and 31st March; the site is to be in Hyde Park; the productions of all nations
are to be exhibited under one classification ; no rent is to be taken : foreign
pro- 
ductions are to be admitted free of duty for exhibition only; the local committees
are to collect subscriptions, and make a general specification of articles
to be 
exhibited from their districts. The classified lists of the objects referring
to 
Raw Produce do not come within the scope of this Journal; but the lists of
Machinery, Manufactures, and Art, we think it right to reprint, to preser
for future reference :- 
SECTION II.-lacdinerp. 
DIVISION A.-MACHINES 2FOR DIRECT USE. 
1. PRIME MOVERS. 
As Boilers and Furnaces for generating Steam, Steam Engines, Waterwheels
and 
other Hydraulic Movers, Windmills, other Engines for generating Power, &c.
2. SEPARATE PARTS OF MECHANISM AND GEERING. 
As Toothed Wheels, Link-work, Belts, Couplings, contrivances for modifying
motion, for reversing and stopping, and for the government and self-action
of 
Machinery, &c. Specimens of perfection in workmanship-such as straight
edges, flat surfaces, screws, spheres, &e. 
3. MACHINES FOR RAISING AND MOVING BODIES. 
RAISING WATER AND OTHER LIQUIDS-AS Pumps, Fire Engines, Hydraulic 
Rams, &c. 
RAISING AND MOVING WEIGHTS, AND PRODUCING PREssuRE-Such as Crabs, 
Cranes, Travellers, Screw Jacks, Hydraulic Presses, Pile Drivers, &c.
CARRIAGES AND VEHICLES. 
MACHINERY OP THE RAILWAY SYSTEM. 
NAVAL MECHANISM, AND NAVAL ARCHITECTURE. 
4. MACHINES FOR WEIGHING, MEASURING, AND REGISTRATION. 
As Weighing Machines of all kinds, Apparatus for the Measurement of Length
and Capacity, for the Registration of Natural Phenomena, and of the results
and operations of other Machinery-as Tide Gauges, Anemometers, Calcu- 
lating Machines, Tell-tales, Counting Machines, Numbering Frames, Copying
Machines, Dynamometers, &c. 
TURRET AND OTHER CLOCKS, WATCHES, AND CHRONOMETERS. 
6. INSTRUMENTS AND MISCELLANEOUS CONTRIVANCES. 
MATHEMATICAL AND PHILOSOPHICAL INSTRUMENTS-As Astronomical and Optical 
Instruments, Apparatus for the Graduation and Division of Lines and Circles,
Physical and Chemical Apparatus. 
DRAWING INSTRUMENTS AND APPARATUS USED BY ARTISTS AND ENGRAVERS. 
MUSICAL AND ACOUSTICAL INSTRUMENTS-As Organs, Pianofortes, Harps, Flutes,
Imitation of the Human Voice in Singing and Speaking, &c. 
SURGICAL INSTRUMENTS. 
LOCKS, and small Machines for Miscellaneous Purposes. 
6. CANNON AND SMALL ARMS, PISTOLS, &c., and all that belongs to their
equipment. 
7. AGRICULTURAL MACHINERY. 
FIELD IMPLEMENTS-As Ploughs, Sub-soil Plough, Skim Plough; Harrows, 
Norwegian Harrow, Clod Crusher, Grubber, or Scarifier; Corn Drill, Turnip
Drill, Water Drill, Dry Manure Machine, Liquid Manure Machine, Horse Seed
Dibbler, Roller, Presser, Horse Hoe, One Horse Cart. 
YARD IMPLEMENTs-Threshing Machine, Corn Dressing Machine, Chaff Cutter, 
Turnip Cutter, Cake Bruiser, Corn Bruiser; Moveable Steam Engine; Tile 
Machine, Draining Tools. 
GARDEN IMPLEMENTS. 
Journal of Design. No. 14, April, 1850.                            F