120 SYSTEMATIC POMOLOGY 



principle of scientific nomenclature every- 

 where. 



Rule 4, the rule of publication, is in reality 

 only an explanation of Rule 3, and ought to 

 be included in the same section. Priority of 

 publication has just been established as the 

 standard of nomenclature, and it is now neces- 

 sary only to define publication. " Publica- 

 tion consists in, first, the public distribution of 

 printed name and description, the latter giving 

 distinguishing characters of fruit, tree, etc." 

 The first public notice of any variety would 

 have to come in this form. However, if it 

 should be subsequently discovered that the 

 name first published was already in use for 

 some other variety, it would thus become 

 necessary to choose a new name ; and when 

 this new name were presented to the public 

 the description of the variety might be omit- 

 ted. Explicit reference would be given, how- 

 ever, to the description originally published. 



The provision that any "book, bulletin, 

 report, trade catalog, or periodical" in which 

 such original publication is made must "bear 

 the date of its publication," is made obviously 

 for the purpose once more of determining 

 priority of names. In case two names are 



