1. Construction, use, working, or repair of any railway, tramroad, tramway, . . . . canal, bridge, tunnel, . . . . or other work authorised by any local or personal Act of Parliament.
[Paragraph 2 rep. 58 & 59 Vict. c. 37, s. 54.]
3. Use or working of any traction engine or other engine or machine worked by steam in the open air.
