XXVI 
Conditions relating to Machinery. 
CONDITIONS KELATING TO MACHINERY. 
Sectjox I., Class 1. — Fixed Steam-Engines of Four-Hoese Power, 
WITH Boiler Combined. 
1. No four-horsQ power Engine will be eligible to compete in Class 1 
unless it be mounted on its own boiler, or together with a boiler on one 
foundation-plate. 
2. The Cylinder of the Engine must not exceed 7J (that is, seven and 
a quarter) inches in diameter. 
3. The Boiler must be fitted with a Steam Indicator, in addition to the 
ordinary Sjying Balance. 
Section I., Class 2. — Fixed Steam-Exgines of above Four-Horse 
POWER AND not EXCEEDING TeN-HoRSE POWER, TO BE WORKED BY AN 
independent Boiler. 
1. The steam-engine must not be more than 10-horse nominal power, and 
the diameter of the cylinder must not exceed II5 (that is, eleven and a half) 
inches. 
2. The Exhibitor will not be required to bring a boiler, as steam will be 
furnished by boilers supplied by the Society ; but he will be required to fix 
the Engine in such a position in the Trial Yard as may be pointed out to him 
by the Director or Consulting Engineer, and to find the materials for doing so 
at his own expense. 
3. The Engine exhibited must be supplied with a governor, and have 
a starting cock to regulate the supply of steam, and be fitted with a thread 
equal to the 2-inch gas-pipe. 
N.B. — In adjudicating on the merits of the Fixed Engines, reference will 
be had to the price, simplicity of construction, probable durability of the 
"whole and in detail, and the means provided for easy access to the working 
parts, and to economy of fuel. 
Section III, — Mills. 
Grinding Mills will be fairly set to work, and their production compared 
with a sample which the Judges shall cause to be produced by one mill, 
•which sami^le shall, in their estimation, be adapted for the farmer's purposes 
of feeding. The mill under trial shall be " set " until it produces like meal ; 
and the time, power, and quantity of work be noted. 
Metal Mills for grinding will not be expected to produce "softened" meal, 
although any mill in combination, with rollers or otherwise, which would do 
so, will receive consideration from the Judges. 
Section V. — Chaff-Cdtters. 
Chaff-Cutters will be required to cut chaff three-eighths of one inch in 
length, in the trial. The Exhibitor must provide means for cutting various 
lengths, to sliow the usefulness of his production. The Judges will be 
