Reference for Bava Metzia 50:1

כאבני בית קוליס מהו

What if they are arranged as the stones of a Merculis way-mark?<span class="x" onmousemove="('comment',' I.e., a way-mark dedicated to Merculis or Mercurius, a Roman divinity identified with the Greek Hermes. The Gemara states below how these were disposed. Our text actually reads 'Kulis', and Tosaf. conjectures that this was the true name of the deity, but the Hamburg MS. reads 'Merculis'. ');">¹</span>

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