From Farm To Battlefield.

The Agricultural Tractor to Become the One-man Tank in War-time. Standard Components the Basis of a Varied Range of Machines. T RUE, the horse (in his day) when war broke out......

• New Designs Of Lock-nut.

Two Interesting Types : One British and One French. T liE number of lock-nuts which has formed the subject of patent specifications can be counted in hundreds, if not thousands,......