Trials of Traction- Engines at Wolverhampton. 567 
unnecessary ; those remarks, however, which \vc have to make, wc tliiuk it will 
lie better to defer until wc come to speak of the trial with this engine on the 
high road on the following Saturday. 
BtirreWs S-Horse-power Locomotive. — The next engine that went round 
was Burrell's 8-horse-powcr locomotive, No. 3660. The weight of this engine, 
on starting with IGO gallons of water in the tank and 3 cwts. of coal, was about 
1) tons. The fire having been cleared out was re-lit from the above-mentioned 
coals and 8 lbs. of wood, and the engine started at 4h. 6m. p.m. ; the load 
drawn behind it was, including the weight of the waggon and the freight, 7 tons. 
Tlie consumption of coal was 167 lbs., or, if 20 lbs. of fire and ashes be 
allowed as half the value of coal, 157 lbs. The water consumed was 124 
gallons, or equal to 7'9 lbs. of water to 1 lb. of coal. The time doing the 
run was 1 hour 2 minutes. 
Messrs. Amies and Barford having withdrawn Tuxford and Sons' engine, 
the next that should have started was Burrell's Thomson's Pot Boiler, with 
indiarubber tjn-es. No. 3661 ; but Mr. Burrell, having seen the troubles into 
which the indiarubber tyres (No. 2149) had fallen, determined, as already 
stated (and we think wisely determined), not to attempt to run Hs india- 
rubber-tyred engine over the course. 
Aveling and Porter's lO-Horse-jwwer. — The last engine which started on 
this occasion was Aveling and Porter's 10-horse-power engine. No. 7001. 
The weight of the engine, with 5 cwts. of coal and the tank full of water, 
was about 12 tons, of w'hich 3i tons were on the steering-wheels, and 85 tons 
\\]X)n the driving-wheels. Mr. Aveling declared to draw behind him two 
waggons, the leading one weighing, including its freight, 4 tons, and the hinder 
Aveighing, including its freight, 6 tons, or 10 tons gross. 
The fire having been raked out was re-lit with 10 lbs. of wood, and from 
the 5 cwts. of coals, and in six minutes was ready for the start, with steam 
at 127 lbs. the engine being managed by a steersman and a boy as fireman. 
Started at 6h. 42m. At 6h. 43m. stopped to throw out half a ton weight 
from each of the waggons, making the gross load drawn 9 tons instead of 10. 
Re-started at 6h. 46m. with 130 lbs. of steam and the least expansion. The 
wheels were fitted with paddles and spikes. At 6h. 49m. the engine was making 
216 revolutions ; the steam was 120 lbs. On going down the slope at about 
the 22nd or 23rd chain, the engine made 280 revolutions. At 6h. 53m. the 
33rd chain was reached. At this time a good deal of steam was blowing off 
at the safety-valve. At 6.56, while running alongside the channel that con- 
veys the sewage from Wolverhampton to Barnhurst, say at about the 40th 
chain, the steersman very nearly put the engine into that channel ; stopped 
about the fourth of a minute to rectify this. At 6h. 58m. came to the turn 
and gate (at the 58th chain), unshackled here, and put on about 9 feet of 
chain ; backed and doubled the chain ; then stopped and put the chain round 
the fore axle of the front waggon, and pulled through, just shaving clear of the 
gate post. Started off at 7h. Im. 30s. At 7h. 2m. 30s. arrived at the road 
close by the Barnhurst, saj'' at the 62nd chain. Stopped, and took off the 
paddles and spikes ; 5 men, including bystanders, worked upon this. Aj; 
7h. 7m. 45s. they were all off, and the engine re-started. Steam at 125 lbs. ; 
went well over the grass until about 7h. 14m., and near the 88th chain, when 
the wheel slipped, stopped, and put spikes on at 7h. 15m., with as many 
spikes on as could be inserted without sending the engine a little ahead during 
the fastening ; but at 7h. 16m. stopped to put in the rest of the spikes ; 
started at 7h. 16m. 45s. At 7h. 18m. 15s. arrived at the road at the 97th chain. 
Stopped to take the spikes off. Four men at work upon this. Ee-started at 
7h. 19m. 45s., and went up the road on an ascending gradient, varying, as 
will be seen, from 1 in 19 to 1 in SO, at 270 revolutions of the engine. At 
7h. 22m. 30s. reached the 108th chain, and stopped to put the paddles on. 
At 7h. 31m. finished this ; and at 7h. 32m. started, drawing the waggon by a 
