In the notes for the paper on Whitney, Saussure mentions the American linguist and his book Life and Growth of Language as having conceived language as a particular case of the sign. Knowing the significance of this idea for the Genevan’s semiological conception of language, we, in this article, investigate in what measure one can effectively talk about a semiological perspective in Whitney. From the similarities and differences between these two authors, we see how what Whitney affirms is utilized by Saussure to build his semiology in an original manner.