eee, 
CODE OF BOTANICAL NOMENCLATURE 
A Nomenclature Commission was appointed by the Botanical 
Club of the American Association for the Advancement of Science 
at a meeting held in Washington, D. C., January 2, 1903. At 
this meeting a series of rules for nomenclature was presented and 
referred to the Commission, which has carefully considered all the 
principles involved, and has tested the application of the principles 
to all kinds of cases. The Commission has found that, for purposes 
of more exact statement, and to reach more satisfactory results, some 
rearrangement and modification of the rules as proposed at this 
Washington meeting are advisable. The principles have been 
carefully compared with those advanced in the Laws for Nomen- 
clature adopted at the Paris Botanical Congress in 1867, and at 
the Botanical Congress held in Genoa in 1892, together with 
Propositions advanced by various groups of botanists, and by indi- 
viduals, during the past few years, and the methods pursued by 
zoologists have also been studied ; all with the plan of obtaining 
a code of nomenclature which will best satisfy all interests involved. 
The action of the International Botanical Congress, held in Paris 
in 1900, by which the subject of nomenclature is to be brought 
before the International Congress to be held at Vienna in 1905, 
has been considered, and the decision there reached to base a new 
Set of rules upon those adopted by the Paris Congress of 1867 
has had our careful attention. This action contemplates the modi- 
fication of the Paris Laws of 1867 by amendment, abandonment, 
or substitution of its various articles. We have found, however, 
that the Paris Laws of 1867 are not satisfactorily adaptable to 
precisely this consideration, for the reasons that their arrangement 
is not philosophical in the light of modern experience and knowl- 
edge, that many important principles are either not recognized, 
or else given altogether too meager consideration, and that there 
is awant of definite and exact statement, which leads to ambiguity. 
e therefore recommend, and propose also to move in the Vienna 
Congress of 1905, that, in accordance with the provisions of the 
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