The Classification of Languages 179 outcome of a project of Leibniz, the mathematician, who was assisted by Catherine II of Russia The material was handed over to the Ger- man traveller, Pallas, for classification. The results of his labour ap- peared in 1787 under the title, Linguamm Totius Orbis Vocdbulana Gvmparativa (Comparative Vocabularies of all the Languages of the World). The number of words on the list circulated was 285, and the number of languages covered was 200, of which 149 were Asiatic and 51 European, In a later edition, this number was considerably increased by the addition of African and of Amer-Indian dialects from the New World. Pallas's compilation was of little use. He had put it together hastily on the basis of superficial study of his materials. Its merit was that it stimulated others to undertake something more ambitious and more reliable One of them was the Spaniard, Hervas> another the German, Adelung Leibniz's suggestions influenced both of them. Lorenzo Hervas (1735-1809) had lived for many years among the American Indians, and published the enormous number of forty grammars, based upon his contact with their languages. Between 1800 and 1805 he also published a collected woik with the tide: Catdlogo de las lenguas de las naaones conocidas y numeraciony division y closes de estas segun la diversidad de sus idiomasy dtalectos (Catalogue of the languages of all the known nations with the enumeration, division, and classes of these nations according to their languages and dialects) This linguistic museum contained three hundred exhibits It would have been more useful if the author's arrangement of the specimens had not been based on the delusion that there is a necessary connection between race and language. A second encyclopaedic attempt to bring all lan- guages together, as duly labelled exhibits, Was that of the German grammarian and popular philosopher, Adelung It bears the tide* MithndateSy or General Science of Languages, with the Lord's Prayer in nearly 500 Languages and Dialects, published in four volumes between 1806 and 1817. When the fourth volume appeared* Adelung's com- v pilation had become entirely obsolete. In the meantime, Bopp had published his revolutionary treatise on the conjugation^ system of Sanskrit, Greek, Latin, Persian, and German Previously, there had been htde curiosity about the way in which language grows In the introduction to "Mithndates" Adelung makes a suggestion* put forward earlier by Home Tooke* without any attempt to check or explore its implications This remarkable Englishman was one of the first Europeans to conceive a plausible hypothesis to account