FOR THE TEACHER AND THE STUDENT 245 



presented, studied, and described, and the de- 

 scriptions can be criticized in due form. This 

 makes very agreeable and useful laboratory 

 work. 



In the discrimination of varieties the labo- 

 ratory method is almost equally easy. After 

 a considerable number of samples have been 

 described, the student ought to be able to 

 recognize them one from another. Variety 

 after variety is added to the collection, and 

 the student frequently tested as to his ability 

 to pick them out and name them. It is sur- 

 prising how much a little well-directed train- 

 ing of this sort will do. Almost any student 

 of ordinary ability can learn in two or three 

 lessons to pick out and name a dozen or two 

 dozen varieties of apples mixed together in a 

 bushel basket. 



The laws of nomenclature have to be stud- 

 ied from the book, and the teacher should 

 not omit to require advanced students to 

 make extended comparisons between the po- 

 mological rules and those in vogue in botany, 

 in zoology, in ornithology, etc. 



Actual practice in determining the correct 

 names of fruits (aside from identification) 

 can be given in the laboratory. The simplest 



