63.772.3 Les succ^danes de la cire d'abeiHes. 
.772.31 Gires dorigiae vegelale. 
-.772.32 » '«, animale. 
.772.33 » ' minerales et iErdustrielles. ■ 
63.81.06 Installations, naateriel apicoles. Le rucher. 
.061 Les ruches. 
.062 Instruments apicoles. 
63.81.07 Peuplement et conduile de rucher. 
63.81.08 Procedes de capture des essaims et colonies sau- 
vages. 
63.81.09 Maladies et ennemis des abeilles. 
.091 Maladies proprement dites. 
.091.1 Loque ou pourriture du couvain. 
.092 Ennemis. 
.092.1 Insectes nuisibles. 
.092.2 Oiseaux. 
.092.3 Mammiferes. 
.092.4 Plantes nuisibles (qui retiennent les abeilles). 
Rngnrding thn divisions of Apiculture and Bees published by 
M. Vermorel one is easily sali.sfied that they do not quite answer 
to the nature of bee^science and to the subjects connected with 
it; nor can one And in them Uiose special lines which subdivide 
and mast clearly subdivide our scien^'e and industry, as is done 
for all that constitutes human knowledge in Dewey's first tables 
of clas.sification and as this decimal system is intended to do. If 
we examine into this defect we readily perceive that it has origin- 
ated owing to M. "Vermorel having aimed at subdividing the 
various sciences or conceptions relating to animal life in nearly 
the same, or analogous terms, whilst if it is known that all these 
sciences have points in common, it is not less true that they 
largely diverge in their development; the very duration of life 
which for certain beings may be a point of absolute and definite 
demarcilion, is not so for others, even if their more or less hioh 
stale of development be not taken into account, and .even the 
technical language applicable to these points in common differ ; 
therefore an attempt to employ the same expressions, the same 
titles to indicate the general lines that must divide and subdivide 
