Institution Notices and Proceedings

The outer harbour of Dunkirk, which covers an area of 80 hectares (about 180 acres), is bounded on the west by a block jetty on rock, on the east by a framework jetty of reinforced concrete on caissons sunk by compressed air (which forms an extension to the old east jetty of the harbour), and on the south by the new earth platforms. The outer harbour is connected with the main harbour by the old channel on one side and by the new lock, known as the "Watier Lock," on the other. The lock gives access to the new basin which forms an extension of the harbour of Dunkirk on the west. Next to Ijmuiden and Emden, it is one of the largest locks in Europe (Figs. I and 2). M. Le Gorgeu

This paper describes the design and erection of a 16-sided glazed steel tower 36 feet diameter and 140 feet high, which encloses a hot water accumulator. The tower is of welded construction and was pre-fabricated in large sections. Wind stresses were given special attention in the design. Guthlac Wilson

The object of the following Paper is to present a simple and short method of treating the side sway effects due to lateral forces acting on symmetrical building frames. N. Naylor