352 On the Exhibition of Live Stock at Chester. 



Specification of George Howe's Ten-Horse Power Boiler for Fixed 

 Steam-Engines, highly commended by the Judges. — {See p. 351). 



The shell of the boiler is 3 ft. 10^ in. diameter ; 12 ft. long from the front 

 to back tube-plate. 



The fire-box is 5 ft. long, and 2 ft. 6 in. diameter. The smoke-bos is 

 1ft. 6 in. long, and the diameter of the boiler : it is fitted with a double-cased 

 door for cleaning out the tubes. 



There are 32 tubes 3 in. diameter inside, 7 ft. long from back of the fire- 

 bos to the smoke-box ; and 10 tubes 3 in. diameter inside, 9 ft. 6 in. long 

 from the side chambers on each side of the fire-box to the smoke-box. 



The fire-bars are 3 ft. 6 in. long by 2 ft. 4 in. The fireplace is divided into 

 two compartments by a narrow cast-iron box open at the bottom, perforated 

 with a number of 3 holes on each side, with a partition in the centre, and a 

 valve along the opening at the bottom, so that air can be allowed to imss into 

 either side, and through the § holes, mixing with the gases of the fuel, causing 

 their combustion, and preventing smoke. The bridge at the back is hollow, and 

 perforated with § holes, and connected with an air channel along the bottom 

 of the fire-box to the front of the boiler, where there is a valve for regulating 

 the supply of air for the same purpose. 



It is intended tliat tlie fresh fuel should be supplied alternately on each 

 side of the air-box forming the partition in the fireplace. 



The fittings consist of one 3 in. enclosed safety-valve, two water-gauges, 

 one patent steam-gauge, and a blow-off cock. 



XV. — Report on the Exhibition of Live Stock at Chester. 

 By Robert Smith. 



Whether wo regard the interest which attaches to it as to any 

 good collection of live animals, or the purposes served by it in 

 bringing together specimens of the best stock required on a farm, 

 we may safely assert that the Society's Exhibition at Chester has 

 been unequalled by that of any former year. 



The successful efforts of the earliest improvers had already shown 

 that great improvement in the breeding of stock was possible, and 

 this — confirmed by the practice and experience of many eminent 

 breeders of more modern times — has just received its most striking 

 illustration. Certainly we have had much to admire in the 

 Chester Exhibition : the animals in general were good of their 

 kind, and it clearly appeared that a greater uniformity of opinion 

 as to the points of excellence in the animal frame is becoming 

 established among breeders. To this remodelled style in our 

 animals we have to add the influences of improved culture, and 

 of a great extension in the growth of root crops enabling the 

 maintenance of larger herds of cattle, before we can fully un- 

 derstand the enormous progress made in all sorts of agricul- 

 tural produce, but especially in those breeds of live stock which 

 are the produce of the varied soils and climates of our several 



