Col. Wilder gave recently an address before the Massachusetts Horticultural Society, and concludes that the conditions of success may be briefly stated as follows : The perfect control of temperature, light and moisture. All experience shows that these conditions must be complied with or success cannot be attained; hence these apartments must be cool, and constructed so as to exclude at pleasure the external atmosphere, which starts fermentation. After many years of experience, both with and without ice, I have adopted a house built in a cool, shady aspect, with the door on the north, and with a thoroughly drained and cemented cellar, with small, double windows, which may be opened or closed at pleasure. In this way I am enabled to keep my late fall and winter pears until February or March in good condition. Apples may be kept at a lower temperature than pears - say 340 to 400.