462 MELVILL: THE PRINCIPLES OF NOMENCLATURE. 
non facit saltum.” The whole array of animated nature is 
before us, awaiting patiently a valid enrolment and arrange- 
ment, systematically and physiologically, and the day is sure to 
dawn when this will be done. 
Two other codes of nomenclature, mainly referring to birds, 
have been published, one being the ‘Check List of American 
Birds,” adopted by the American Ornithologists’ Union, New 
York, 1886; and the other “Regeln fiir die Zoologische 
Nomenclatur, angenommen von der Allegemeinen Deutschen 
Ornithologischen Gesellschaft zu Berlin auf der XVI. Jahres- 
versammlung in Frankfurt-am-Main,” 1891. 
VIII.—CoprE oF THE GERMAN ZOOLOGICAL 
SOCIETY, 1896. 
Lastly, and most important of all since the original code 
was drawn up, the rules suggested by the German Zoological 
Society must be noticed. ‘The rules of the German Zoological 
Society most affecting those already in existence are— 
Rule tr. 
(az) Zoological Nomenclature includes extinct as well as 
recent animals, but has no relation to Botanical names. 
Rule 5. 
(6) The same name may be used for the generic and 
specific name of a species. 
IRWS 9, 
(c) The application of the law of priority begins with the 
X. Edition of Linnzeus’ “ Systema Nature (1758).” 
Rule 19. 
(2) The author’s name of the species shall be placed in 
parentheses when the original generic name is replaced by 
another. 
Rule 20. 
(e) Hybrids shall be designated either by a_ horizontal 
cross between the parents’ names, or by their names being 
placed one above the other with a line between. 
J.C., vili., Oct., 1897. 
