DRONES 
289 
grooves that are spaced exactly right, and 
then a soft metal in a molten state is made 
to flow in certain cross-grooves of the 
metal form. As the metal cools almost in¬ 
stantly, the wires are held at exactly the 
right intervals. The smooth rounding 
edges of the bars afford less obstruction to 
the bees passing and repassing, and prac¬ 
tical tests show that this form of excluder 
is much superior to the old perforated 
metal. On account of the rounding smooth 
edges of the wires, they must be slightly 
closer or 162-1000 of an inch. 
Full-sized wire-excluder. 
In the manufacture of the perforated 
zinc, unless the dies are very sharp, there 
will be a slight rough burr edge on the 
under side of the sheet. It is impossible 
to remove this edge without reducing the 
width of the perforation. For this reason 
the wire excluder is superseding the other 
form of perforated zinc. 
DRONE-EXCLUDING ENTRANCE-GUARDS. 
If a strip of perforated zinc or wire 
excluder is placed over the entrance, the 
worker bees can go out, but the drones 
cannot. 
Wire entrance-guard. 
When it is desirable to get the drones all 
out of a hive without permitting any to get 
back again, the guard is put over the en¬ 
trance and all the bees are shaken in front 
of the hive. The workers will, of course, 
crawl back on the combs; but the drones 
will have to stay out, and the queen* too, 
*This method is sometimes used to catch the 
queen in a colony of black bees. 
unless she is put in the hive. In the 
morning, when the drones are stiffened 
with cold, they may be fed to the chickens 
or otherwise destroyed. 
The drone-excluder just described is not 
automatic. Accordingly, Henry Alley of 
Wenham, Mass., devised the one shown 
next. 
This is similar to the one just described, 
only it has a wire-cloth cone in the top. The 
drones, after making a fruitless attempt to 
Perforated zinc Alley trap. 
pass the metal, will enter the wire-cloth 
cone in the top, and escape; however, none 
will go back the way they came, but will 
huddle together outside and await their 
fate. 
Wire and zinc Alley trap. 
If it is desirable to get the drones into a 
box, so they may be carried to some other 
apiary, for instance, a cage is made with 
