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__Matter and Motion__by James Clerk Maxwell, Article 59,

"Let us define a mass-vector as the operation of carrying a given mass from the origin to the given point. The direction of the mass-vector is the same as that of the vector of the mass, but its magnitude is the product of the mass into the vector of the mass.

Thus, if OA is the vector of the mass A, the mass-vector is OA*A"

I can almost comprehend the idea of a mass-vector. Simply take the "vector of the mass" and multiply it by the mass. But what is the vector of the mass? What would be the point of the mass vector anyway?

Thanks.