In addition to those described, there are a large number of varieties, which may be worth importing and testing in this country, by those who may feel inclined to make experiments with these nuts. Probably some of those highly extolled by earlier writers are now lost, but this cannot be determined until a careful search through the old European gardens has been made. Among the early-fruiting or precocious varieties we find an account of one raised by Anthony Carlisle, of England, as recorded in a paper read at a meeting of the Horticultural Society of London, March 3, 1812. Mr. Carlisle planted six nuts in March, 1802, these having been received from Mr. Thomas Wedgewood of Blandford. Six years later, or in 1808, one of the seedlings bore and matured ten walnuts, and the next season (1809) upwards of fifty, and in 1810 one hundred and twelve, the tree at that age being nineteen feet seven and one-half inches high. Another variety, under the name of Highflyer walnut, is described in the Transactions of the same society, Vol. IV, 1822, p. 517. The nuts sent to the society were grown in the town of Thetford, and are described as a long oval, with a shell so very thin that the slightest pressure of the fingers crushes it. I find that this Highflyer walnut is mentioned in the recently published "Dictionary of Gardening," but whether obtainable in English nurseries or not we are left in doubt. I refer to these English varieties mainly to show that some of the very best and thinnest-shelled walnuts have been grown in cool climates, and are not confined entirely to the warm or semi-tropical, as many persons seem to suppose and even claim to be the fact. It is principally from these English walnuts, as they are usually termed, that our hardy old-bearing trees, referred to elsewhere, have been produced, and, doubtless, many more will be, when we begin to pay some attention to this very valuable nut. It is also quite likely that when our horticulturists look about for choice acclimated varieties for propagation, they will be found right here in the grounds of next-door neighbors, and there may be no necessity of sending to Europe or elsewhere for either nuts or trees. At present there is much confusion and uncertainty in regard to the identity and nomenclature of both species and varieties of the walnut, and it must remain so until they are collected from all countries and climes, of which they are either native or into which they have been introduced, and when so collected, and fruiting specimens produce, it will not be difficult to classify and determine their synonyms. This will be an undertaking scarcely to be expected of the individual nut culturist, but is within the legitimate line of the arboretum, and of public botanical gardens located in both cold and warm climates, thereby securing a division of labor, and at the same time avoiding the uncertainty of trying to produce practical results under uncongenial conditions and surroundings.