The 1890 Baker book is “Wild Beasts and their Ways, Reminiscences of Europe, asia, Africa and America” by Sir Samuel. Old post-copyright books are sometimes available for free down-load or full-preview on google-Books and perhaps other sites. It has been re-printed, '06 or '07 (2006/2007).
That guy measured his powder in Drams (1 dram = 60 grains), to nearest half dram or 30 grains; he wrote of using 6 to 6-1/2 drams of black powder (360g - 390g)! He also wrote that a rifle should weigh 11-1/2 to 12 pounds and that Express .360 calibers and below were Toys and not for use on Ordinary game. He wrote that shooters of his H&H Paradox rifle would use rifle carriers leaning back-up into shooter and recoil would still knock the two men down.