40 PRODUCTION OF NEW VARIETIES. 



sized apple crossed by a large sort, will be more 

 certain of producing a new variety; but it will be 

 almost equally certain of producing a variety desti- 

 tute of valuable qualities; the qualities of parents 

 of so opposite natures being as it were crudely 

 jumbled together in the offspring." 



Some of the best varieties thus obtained, are 

 Coe's Golden Drop plum, from the white Mag- 

 num Bonum or Egg plum, and the Green Gage ; 

 the Elton cherry, from the White Heart, and 

 Big&rreau ; Knight's Early Black, and Waterloo, 

 from the Mayduke and Bigarreau ; the Downton 

 pippin, the red and yellow Ingestrie, and Grange 

 pippin, from the seed of the Orange pippin and 

 pollen of the Golden pippin. The Bringwood pip- 

 pin was produced from Golden pippin blossoms, 

 (divested of their stamens,) dusted with the pollen 

 of the Golden Harvey apple.* 



The limits within which experiments of this kind 

 may be successfully practiced, are narrow. Cross- 

 fertilization rarely takes place between different 

 species, unless they are nearly related to each 

 other. The offspring of different species is fre- 

 quently sterile, or if it possess the power of multi- 

 plying itself, by seed, its progeny returns to the 

 state of one or the other of its parents. 



But there are some exceptions. A gooseberry, 

 current, and black currant, are species of the same 



* London. 



