258 SYSTEMATIC POMOLOGY 



comparing the samples with some standard 

 description. The instructor naturally will 

 take care to offer the student, at least at first, 

 only such varieties as are included in the key 

 to be used. 



11. If the instructor has at hand a consid- 

 erable collection of peaches, plums, grapes, 

 or other suitable fruit, and is willing to spend 

 a good deal of work on this subject, he can 

 make an analytical key of his own for those 

 varieties which he has on hand. This can be 

 printed, duplicated with the mimeograph, or 

 put into the hands of the students in some 

 other way ; and will then furnish another very 

 useful and attractive laboratory exercise for 

 them. 



Exercises in Nomenclature* 



12. Furnish a list of names of fruits for 

 verification or correction. See that this list 

 contains various doubtful and incorrect names. 

 Secure -as wide a range of literature as pos- 



* It will be found to be a very useful exercise, though per- 

 haps better suited for home study than for laboratory work, 

 for each student to make a critical comparison, paragraph by 

 paragraph, of the rules of pomological nomenclature with 

 those used in botany and in different branches of zoology. 

 The botanical rules may be consulted in various places e.g., 

 in Britton & Brown's " Flora of North America," and in the 



