After these Leroy gives several references to show that the peach was commonly cultivated from the Ninth Century on but none of the writers whom he quotes gives a recognizable picture of the kinds of peaches in their day until we come to the epoch-making agricultural book of Olivier de Serres, who, in his _Théatre de Agriculture_, published in 1604, names and describes twelve kinds of peaches. While these descriptions are so incomplete as to be most tantalizing to one trying to recognize varieties, yet Olivier de Serres is one of the outstanding historians of agriculture and his few paragraphs on the peach constitute a prominent landmark in the history of this fruit because he names a considerable number of sorts and makes it plain that the peach is no longer grown as a species but that varieties are receiving recognition, though, sorry to say, we cannot be sure from the fragmentary description whether or not any of his kinds have come down to our time. From the beginning of the Seventeenth Century the history of the peach in France is common property to students of pomology. Botanists and agriculturists by this time had begun to break away from Dioscorides, Pliny and the other ancients of Greece and Rome; and in France, Germany and England one herbal after another was beginning to appear in nearly all of which the peach received attention. Perhaps, since France plays so important a part in the development of the peach, a brief recapitulation from French pomological authorities following Olivier de Serres, showing the increase in varieties of this fruit and bringing to mind the men who have written in pomology, may be of interest and profit. Lectier, agent of the King at Orleans, in a catalog of an orchard in his charge, published a list of 27 varieties of peaches in 1628. Thirty-nine years later, 1667, Merlet in his _Abrégé des bons fruits_ names 38 sorts of this fruit. For the next hundred years the increase in number seems to have been small, for in 1768 Duhamel du Monceau in _Traité des arbres fruitiers_, the first great pomological work to be published, describes but 43 peaches. This century, however, was one in which peach-culture increased enormously throughout France. At the beginning of the period peaches began to be grown in the shelter of walls--a method the results of which greatly increased the culture of this fruit. Calvel, in 1805, names 60 varieties; Louis Noisette, 1839, lists 60 sorts; André Leroy, 1852, names but 41 varieties, but in an edition of the same work in 1865, describes 148 peaches; lastly, O. Thomas in _Guide pratique_ (1876) publishes a list of 355 peaches.