was completed. In the second half of October that year, further wagons were nearing completion, with nine wagons produced before the opening of the Bavarian Ludwig Railway. The wagons consisted of two wagons for third class passengers, four for second class and three for first class. On 21 October 1835, the first test run with one horse-pulled wagon took place. Denis had constructed a brake for the wagons which was tested at this opportunity. The wagon could be stopped in each situation without any effort by the horse. On 16 November, the first test run of the steam locomotive from Nuremberg to Fürth and back again was accomplished. Due to the cold weather that day, the speed was reduced. Three days later, five fully occupied wagons were transported on the track in 12 to 13 minutes. On the way back the brakes and also boarding and disembarking of the passengers were tested. During the following tests it was discovered that, if wood was burned in the locomotive, the sparks which came out of its chimney singed the clothing of the passengers. The passengers' participation in the test run cost 36 kreuzer each, and the revenues from this were donated to the welfare of the poor. Construction and bodywork Locomotive The Adler was built on a wooden framework which was covered with sheet metal. Both wet steam driven cylinders were placed horizontally inside the frame and drove the driving wheelset which was placed in the middle of the three axles. The driving wheels had no wheel flange, so the locomotive could be operated on small radius curves. The forged spokes were rivetted to the rim. The original wheels were made of cast iron and were encircled with a forged tyre made of wrought iron. The original wheels made of brittle cast iron were replaced later through wheels made of wrought iron. The hollow spokes had a core made of wood to make them more flexible to cushion unevenness of the track. All wheels of the locomotive were unbraked. A mechanical railway brake braked both wheels of the tender on the right side where the fireman was located. There was a fixed connection between the locomotive and the tender. The buffers were made of wood. The horseshoe-shaped water box surrounded the coal stored in the tender. At first coke was burned in the firebox, later bituminous coal was used. Railway coaches The