It seems interesting that the title refers to the "…Rifle, Model 1898 and the Magazine Carbine, Model 1899".  Do you expect that the tile was to infer Carbine, Model 1898 as well since by 1901 it - the Model 1898 - was assumed to have been converted to the 1899 specs?  Or maybe they simply had no idea how we collectors would become so wrapped up in trying to prove that all the details had a specific meaning and place in history.  Sorta like mounds and molehills.

It's probably more likely that the motivation for the title was determined because these were the only pieces actually in production at the time.