William Ashmore, Primary Lessons in Swatow Grammar…
“ Now it is true that in certain words the Chinese themselves do make two sounds coalesce, as hiēn or hīn, chiang or chang, kièn or kìn, chiũ or chũ. If the foreigner could limit himself to the Chinese usage it would be all well enough, but he makes sounds to coalesce which Chinese do not, and the peculiarity is instantly noticed. The prevention of this defect is easy and simple. The learner should at the outset, among other things, take short lessons daily in the pronunciation of syllables. ”
