178 EXPEULMENT STATION. [Jan. 



their liigliest perfection. A mistaken elioiee will lie a serimis 

 thing, and one that will reqnire valnable time and mneh expense 

 to correct. 



The present pa})er is the resnlt of a study, carried on for the 

 past four years, of the eifect of varying climatic ct)nditions on 

 varieties, and an atternjjt is here made to lay down certain prin- 

 ciples as to the climatic adaptations of varieties. Questions of 

 soil and cnltnre are given only incidental consideration. For 

 the former there has not been snfKcient opportunity, and a con- 

 sideration of the latter wonld lead into the whole field of ondiard 

 management. Many samples of different varieties, grown under 

 Avidely varying conditions, have been examined pomologically, 

 and some of them chemically, and a study made of the pomologi- 

 cal and meteorological literature available. 



This paper docs not make specific recommendations of varie- 

 ties for any section of the country or for the country in general. 

 That is more or less a local problem into which enter (piestions 

 not considered here. Among them are those of soil, market 

 demands, methods of culture to be followed, the individual 

 preferences of the grower and many others. If the conclusions 

 of this jiaper are sound, they should aid in such choice, for 

 many varieties that might otherwise be considered are excluded 

 as not being suited to the clinuitic conditions of the locality 

 under consideration, while from those that are adapted climat- 

 ically, the ones best suited to soil and other conditions may be 

 singled out. 



The subject under consideration is a large one. To under- 

 stand at all fivlly the relations of apple vai'iatiou to el i unite 

 will require prolonged study and experiment. This paper is, 

 in a large degree, introductory, and may contain errors and 

 omissions whi(di should be corrected. The Avriter will greatly 

 appreciate any suggestions as to corrections or additions that 

 should be made. 



The work has been done as Adams fund research, and at the 

 same time in partial fulfillment of the requirements for the de- 

 gree of Doctor of Philosophy from the ]\rassachuPetts Agricul- 

 tural College, Tt has been done under the direction of Prof. 

 F. C. Sears, to whom the thanks of the writer are extended for 



