Summing up : 
All publications dealing wiili useful arts are contained in the 
group numbered 0.6 
Having divided the useful arts into 10 groups, those dealing 
with agriculture come under the number . . • 0.63 
Having divided the group of agriculture into ten divisions, 
the one that treats of apicwitere and silk-ivorm culture comes under 
the number 0.638 
This last being again divided into ten subdivisions, the one 
which treats (5f apiculture and bees, being numbered . 0.6381 
Therefore in a library arranged according to the decimal 
classification, all works referring purely and simply to bee litera- 
ture carry the number 0.6381, or a number with some decimals 
beginning with these four figures which are characteristic of the 
special branch : Apiculture-Bees. 
,. Therefore in one of these libraries, arranged according to the 
decimal system, on asking for all the works classified with the 
fraction beginning 0.6381, we are sure to obtain all publications 
on Apiculture and Bees in that library. 
I think that these observations are sufficient to show the 
clearness and simplicity of the decimal classification; it has also 
other advantages : 
1^' Subdividing the subjects into classes one can trace their 
origin w'lh precision: the idea is simple: it is sufficient to start 
from the trunk, or the first division travelling up the branches 
or the successive divisions, each branch gradually getlino- smaller 
till one reaches the desideied point, without difficulty, and sure 
of having left nothing behind. 
2"'' The classifying numbers represent ideas, -not words; and 
this constitute a real international bibliographical lano-uace. 
In all libraries of the world, the number 0.6381 will represent 
bee - culture, bees. To render the bibliographic works accessible in 
all countries, in whatever language they are, it will be sufficient 
if the tables be translated. 
3"! The decimal classification may be indefinitely extended 
even to include all the knowledge of the future. When it be- 
comes necessary to divide some subject into new subdivisions, to 
these can be appointed classifying numbers, formed in the usual 
way, by the addition of decimals. 
