Waterman:

NOTE from the 5th line at the foot of page 215.

Some of the professed friends, as well as the avowed enemies of Calvin, hare been anxious to establish the point, that Calvin limited the atonement of Christ to the sins of the elect alone. Calvin’s opinion however was, that the atonement of Christ was for Sins, as he deliberately says in his Will, That the blood of the exalted Redeemer war shed for the sins of the human race.–He is no less explicit in his Commentaries–Rom. v. 18–Nam etsi passus est Christus pro paccatis totius mundi, atque omnibas indifferente Dei benignitate offertur, non tamen omnes apprehendunt. “For although Christ SUFFERED FOR THE SINS OF THE WHOLE WORLD, and by the benevolence of God it is indifferently offered to all, yet all do not receive him. Opera Calvini, vol. 7.

Elijah Waterman, Memoirs of the Life and Writings of John Calvin (Hartford: Printed by Hale & Hosmer, 1813), 410-411.

Credit to Tony for the find