Various, Blackwood's Edinburgh Magazine…
“ Of all garments that are to have any degree of freedom and looseness about them, the frock-coat is the best: it is good for a man in almost any avocation, and may be made suitable for the common business of life, as well as for the refinements of society. But then it should not be worn open: it should be buttoned upon the breast. Place an officer in his plain closely-buttoned undress coat by the side of a civilian, with his loose and open frock, and the contrast is so decidedly in favour of the former, that the point, as a matter of taste and effect, will not admit of a dispute. ”
