Letter from Frederick Augustus Abel, Royal Arsenal, Woolwich, to John Hall Gladstone Notes his duties regarding gun cotton research for the Secretary of State for War. He can communicate with Gladstone's committee at his discretion on matters such as the Austrian method of preparation, but emphasises that he is obliged to respect the promise of secrecy made to the Austrian Government. This is now relaxed by an English patent application on the same process. Lists four communications he is willing to supply to the Committee. 2 February 1863