Agricultural Steam Engines at Newcastle. 
691 
means of the anemometer, the volume of air passing through 
each furnace, but the results of these experiments are unim- 
portant in view of the completer information with regard to 
combustion afforded bv analysis of the smoke-bos gases. Of 
this, and the apparatus bv which it was effected, full particulars 
will be found in the Engineers' Report, which also includes the 
Indicator Diagrams taken from the engines. 
As the result of the Trials, the Judges awarded the prize of 
200/. to Messrs. Davey, Pasman tSc Co. for their Compound 
Portable Agricultural Engine (Art. 3124), and the prize of 
100/. to the same firm for their Simple Portable Agricultural 
Engine (Art. 3125). 
In concluding this Report, the Judges desire to thank all the 
Exhibitors for the ready attention which they accorded to every 
suesestion, and the Stewards of the Societv, their Consultinsr 
Ensineers, the Engineering ^taff, as well as the Analvsts, for 
much valuable aid, and great courtesy in rendering it. 
XXIX. — Report of the Consulting Engineers on the Trials of 
Portable Agricultural Steam Engines, self-moving or otherwise, 
at Newcastle. By SiB Fredk. J. Bbamwell, M.Inst.C.E., 
F.R.S., and \V. AxDEBSoy, M.Inst. C.E. 
XoTWITH;STA?rDI>'G the fulness of the Report drawn up by the 
Judges, we have deemed it necessary to prepare one dealing 
with matters not included in it, and in doing so, we inevitably 
trench upon subjects already discussed. To a certain extent, 
therefore, the two reports overlap, and there is repetition ; we 
regret this, but it would have been impossible for us in any 
other wav to make our report consecutive. 
The object of our work is to exhibit and consider some of 
the leading facts connected with economy in fuel and in water, 
pointing out the relations between the results actually obtained, 
and the results theoretically obtainable : distinguishing between 
those cases where there is some room for practical improvement 
and those other cases where, until new metals or materials are 
met with competent to stand the needed temperatures that must 
prevail in a theoreticallv perfect engine, the engineer must be 
content with the production of work still far removed from ideal 
perfection. 
VOL. xxni. — s. s. 2 z 
It 
