Square, London. Fig. 6 shows a carriage invented by Burstall and Hiel, which attracted a great deal of attention. It was probably the most complete and perfect mechanically of any invention that had been made up to that time.
Fig. 7 shows a carriage invented by Squire and Maceroni, who had been for a long time in the service of Goldsworth Gurney, one of the most noted experimenters of his day in steam propulsion. A number of carriages were made by these workers, on designs similar to Fig. 7, and it is said that they ran at a high rate of speed, probably ten miles per hour.
Fig. 8 illustrates an invention that is interesting from the fact that
it was to be operated by compressed air, and perhaps was the first effort to utilize this form of stored energy for the propulsion of vehicles. It was not a success, but its failure was due to the fact that the inventor labored under the delusion that the laws of nature could be circum-