Scope and Contents Miscellaneous correspondence concerning new inventions and engineering works, including proposals for a bridge at Limehouse, London, in conjunction with the Metropolitan District Railway, depicted on a map, with comments by Airy; calculations relating to curves in railway tracks; Airy's theory of the link motion for the sliding value of steam engines'; various inventions for propellers, steering apparatus and paddles, with Airy's views; T. Walker's plan for recycling sewage, including a plan...