The mere fact that the defendants were grocers and liquor dealers in this Commonwealth, and that the plaintiffs knew it, (which is all that the instruction assumes,) did not necessarily prove knowledge on the part of the plaintiffs that the defendants intended to sell the liquors again illegally, which was essential to invalidate the sale between these parties. Kellogg v. Moore, 2 Allen, 266. Ely v. Webster, 102 Mass. 304.

Exceptions overruled.