LABORATORY WORK 259 



sible, and see that each student works it 

 through and through. All the standard works 

 on pomology should here be brought into 

 play. Experiment station bulletins which 

 offer thoroughly adequate and authoritative 

 monographs of certain groups should be 

 freely used ; but those which merely report 

 on varieties without careful use of names 

 should be avoided, except they be given out 

 for criticism. A good variation of this exer- 

 cise consists in furnishing the student with 

 some nurseryman's current catalog, and re- 

 quiring him to bring the nomenclature to the 

 best technical standards. 



13. The county fairs once more offer a fine 

 opportunity for tests in nomenclature. Names 

 are not only incorrectly applied to fruits in 

 such exhibitions, but the names are often 

 wrong in themselves. These exercises, which 

 bring the student into practical touch with 

 the evil consequences of inaccurate nomen- 

 clature, are of special value. 



Appendix to Sudworth's " Nomenclature of the Arborescent 

 Flora of the United States" (United States Department of 

 Agriculture, Washington, D. C.). In this latter work will be 

 found also the principal rules in use among zoologists, with 

 other interesting data on matters connected with nomencla- 

 ture. 



