intended for the Conveyance of Fresh Provisions. 769 
At 11 A.M. on June 19tli, Colonel Mann placed 1456 lbs. of ice in the tank 
in liis waggon. This ice lasted until June 23, when 930 lbs. more ice were 
added to fill up the tank. A small quantity of salt (about 1 cwt.) was used 
on this last occasion, Colonel Mann wishing to reduce the temperature of his 
waggon below 45°, as required in the conditions of trials. As, however, the 
ice was in solid blocks, the salt did not take hold of it, and on next opening 
the tank the salt was found caked in hard lumps. On the evening of the 
26th and the morning of the 27th inst., further additions of ice, amounting 
to 995 lbs., were made, again filling up the tank. 
The total quantity of ice used in this waggon was 3381 lbs., and of salt 
about 100 lbs. — the quantity of ice remaining in the tank at the close of the 
trial being roughly estimated at 12 cwt. The average temperature from 
June 19th to 28th in this waggon was 49*37 deg. Fahrenheit. The variation 
of the external temperature was very considerable, as is shown by the 
diagram, the weather throughout being cloudy, with frequent rain and very 
little sun. 
Mr. Knott on first filling his tank with ice and salt used 2016 lbs. of ice 
and 550 lbs. of salt ; the ice was broken up into small pieces, and mixed with 
the salt, forming a freezing mixture of about 3 to 1. Further additions of ice 
and salt were made on the 21st, 23rd, 24th, and 27th instant, amounting in 
all to 5298 lbs. of ice, and 1492 lbs. of salt. The loading of this waggon 
always occupied a considerable time, as the ice had to be broken up small, 
and mixed with the salt, before packing it between the air-tubes which 
intersected the ice-tank. About two inches of brine remained in the tank at 
the end of the trial. 
The two waggons were attached to the 11.10 p.m. express goods train from 
Camden to Holyhead, where they arrived at 1 o'clock on the afternoon of the 
20th. For the return journey they were attached to the 5.40 p.m. passenger 
train from Holyhead, and arrived at Camden at 4.30 a.m. on the 21st. They 
were then sent on by a special engine to Salusbury Road, Kilburn, where they 
were shunted into the goods siding. 
On the 23rd and 25th June respectively the waggons were drawn into their 
places in the Showyard, where they were lefi, for the rest of the trial, in charge 
as before of the engineers, who had never lost sight of the waggons through- 
out, one always being on duty to note temperatures and any occurrences that 
might take place. 
At 3 P.M. on the 28th inst., the Judges arrived to examine the contents of 
the waggons. As already stated, the registering maximum and minimum 
thermometers were found to have been so shaken as to be unreliable, and one 
of the wet and dry bulb thermometers being injured, no comparison of dryness 
could be made. 
Eastons and Andekson. 
On Saturday, June 28th, No. 1 van was opened at 3.30 P.M., 
and after the thermometers had been duly examined by the engi- 
neers, the Judges entered the van and proceeded to make a minute 
examination of its contents. A slightly unpleasant odour told 
that something had gone wrong, and this was soon found to 
be the leveret, but as this was the only animal which was not 
bought alive, it is possible it was not so fresh at starting as 
was stated. The beef had a slight coating of mould, which did 
not improve its appearance. The Judges' Report was as fol- 
lows : — Goslings in perfect condition, sweet and firm. Rabbits 
wonderfully fresh. Chicken excellent. Beef dry on the out- 
side, quite sweet and firm. In the ewe sheep in which the 
VOL. XV. — S. S. 3 F 
