A folder containing various items relating to high pressure engineering including a diagram of a synthetic ammonia reactor, contents page of a paper entitled 'The Bursting Pressure of Thick Cylinders, a reprint of a paper from Engineering entitled 'Design of Cylinders by Autofrettage', reprint of a paper from Engineering entitled 'The Overstrain of Tubes by Internal Pressure', reprint of a letter to the editor of Engineering entitled 'Cheap and Rapid Gun-Making', paper from philosophical transactions of the Royal Society of London entitled 'The Plastic Distortion of Metals', reprint of a letter to the editor of Engineering entitled 'Overstrain of Tubes by Internal Pressure', reprint of a letter to the editor of Engineering entitled 'The Design of Compound Cylinders for High-Pressure Service', reprint of a paper from Engineering entitled 'The Wave Ring High-Pressure Pipe Joint' and an advanced copy of a paper entitled 'Observations on the Pressure of Fluidity of Annealed Metals'.