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 published the prospectus. These failures were probably owing to the intricacy of the subject, pand the extensive details it involved; but, at the time, the question was agitated, it was the opinion of many, that it would have failed in affording such extensive data as Rozier anticipated. Duchesne, the professor of botany and agriculture, in the Dept. of Seine and Oise,. conceived, that from the known effects of climate, results obtained at Bordeaux, would offer nothing conclusive for the vineyards of the north, and that it would be necessary to have at least four establishments, if not one in each province, before any thing satisfactory respecting the effects of climate, on the qualities of the grape could be determined. He, however, allowed that Rozièr's first object, that of forming a new nomenclature of varieties, might be obtained by the means he proposed.

The opinion of, the authors of Chaptal's first work, is in accord with that of Duchesne, as to the effects of climate on the qualities of the produce of the vine; but they think, too, that these effects are so powerful on its physiology, as to make an equal number of establishments necessary to obtain a synonymie, on which a newnomenclature might be founded.