I have had the reprint of this book for some time and always thought it was a neat resource giving examples of various cartridges tested at the Frankford Arsenal. It is especially pertinent to me as there were experiments on a horizontal pinfire cartridge. The hope was that the front ignition would give higher pressure and a higher velocity which it did. However it was very complex and had many other issues in their trial.
This memoranda was put together in 1873 by Major Treadwell who had been deeply involved with ammunition and ordnance at Frankford Arsenal for awhile. He was mentioned here in the article on the American Civil War pinfire cartridge designed and manufactured by Christian Sharps as he is who asked Sharps to make a new pinfire cartridge for the Army. Treadwell introduces the memoranda as follows: