1. The Grammar of the Written Mongolian Language is the first complete scientific grammar of this language to meet the requirements of modern linguistic science. The Mongolian grammars of A. Bobrovnikov, S. Kovalevskij, and I. J. Schmidt have long been obsolete and are, moreover, quoted in the book-trade as bibliographical rarities at exorbitant prices. Among earlier works B6htlingk's Die Sprache der Jakuten and M. A. Castr'n's Versuch einer burjdtischen Sprachlehre are still of value for Mongolian studies. The beginning of the twentieth century marked a period of great expansion in the field of Mongolian studies with which are to be associated such names as Ramstedt, Pozdnejev, Rudnev, and Kotwicz. Before 1930, the terrain of Mongolian linguistic research had been so widely covered that it was possible for the comparative grammar to be written; B. Ja. Vladimircov, whose early death has deprived us of an able scholar, wrote his excellent CpaBHHTeZSHab rpammaTHRa MOHrOJbCKOrO IIHCbMeHHoro m3bIKa H xaIKaCCKorO HapelHf, Comparative Grammar of the Written Mongolian Language and the Khalkha Dialect, of which part I, Phonology, appeared in Leningrad in 1929. In the preface Vladimircov expressed the hope of being able to complete the additional volumes within a short time: Morphology, Syntax, and Semantics. Unfortunately, this monumental work was destined to remain unfinished. Poppe had previously produced two Mongolian grammars: