William Dwight Whitney was an editor on Webster's Dictionary and a founding member of the American Philological Association. Principally a scholar of Sanskrit, he was a known expert on comparative linguistics. In this paper he reviews a series of then-new publications that still form the basis of our understanding of Sanskrit grammar and language. The reviewed works include Bruno Liebich's papers "The study of Hindu grammar and the study of Sanskrit" and "Panini: a contribution to the knowledge of Indian literature and grammar"; R. Otto Franke's two papers "The case-system of Panini compared with the use of the cases in Pali and in the Aoka inscriptions" and "What is Sanskrit?" The paper provides linguists and students of Sanskrit with a learned critique of the work of two scholars who helped lay the foundations of modern study in Sanskrit.