
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:


Bonjour, je m'appelle Aaron Newcomer. Je suis collectionneur et chercheur sur les systèmes d'armes à feu à chargement par la culasse du début du 19e siècle, avec un intérêt particulier pour les travaux de Jean Samuel Pauly et Casimir Lefaucheux. Je collectionne les cartouches et les documents liés à ces types d'armes à feu et je mène des recherches sur ces sujets, approfondissant ma compréhension et ma connaissance de ces armes historiques et leur place dans l'évolution de la technologie des armes à feu. Ma collection et mes recherches reflètent mon engagement à préserver et à comprendre l'histoire et les innovations techniques de ces systèmes d'armes à feu anciens.