Dr. Geo. H. C, Fort Smith, Arkansas, desires to know whether this walnut is grown to any great extent in this country, and what is the probable chance of success in Arkansas.

Trees one to two hundred years old exist in Germantown, and they usually bear very well in some years ; in others produce none at all. The reason for this has never been understood, unless some recently discovered facts in relation to heat and male flowers should explain it. In the hazel nut there is evidence that a degree of heat, which is not sufficient to advance a female flower, will advance a male flower, and in some seasons these flowers advance too early to be of use in fertilization. If we can find room we shall publish the paper soon. It must depend on actual experience how successful the European walnut is in Arkansas or Texas. Has any one a fruiting tree? and if so, will they kindly give us their experience?