SUMMARY OF MORE IMPORTANT CONCLUSIONS. 
1. Bees use freely the wax in foundation to extend both the 
midrib and the cell walls of honey comb. 
2. The heavier the foundation used, the heavier, as a rule, 
will be the comb built upon it. 
3. If the midrib of a foundation is much lighter than that ol 
natural comb, the bees are likely to strengthen it by adding wax to 
the bottom of the cells.* 
i 
4. If the midrib of the foundation is thicker than the mid¬ 
rib of natural comb, it will result in a comb with a midrib thicker 
than the natural. Or, to state it differently, the bee3 will not thin 
the midrib of a foundation down to the thickness of worker comb 
built in the natural way. 
5. Midribs of foundation that are not more than .17 of a 
millimeter (.007 inch) in thickness, are thinned little or none by the 
bees. 
6. Drone comb has a thicker midrib and heavier cell walls 
than worker comb. 
7. A foundation with a heavy midrib and very slight cell 
walls, will still produce a comb with heavy cell walls. 
8. Very high cell walls in foundation are not cut down to 
the thinness of cell walls in natural comb. 
9. The thin and extra thin and the “1899” deep-cell founda¬ 
tions produce a comb that approximates very closely the lightness 
of that which is naturally made by the bees. 
10. When heavy foundations are used, the extra weight of 
the comb built upon them is due more to the extra weight of the 
cell walls than to the heavier midrib. 
* Possibly this is only done where there are actual perforations of the comb. 
