134 A Modern Bee-Farm 
experiment which entirely changed my own views as to 
the nature and destructiveness of foul brood ; for whereas 
formerly I considered the combs must be destroyed 
utterly, I have been able to point to perfectly clean 
combs which were at one time diseased, and yet they 
were not niedically treated in effecting the cure. 
Exchanging Diseased Stock with Healthy Colony. 
The said experiment consisted in exchanging places 
with two stocks; one of which was badly diseased, but 
strong in workers, old and young, while the other was 
more backward but perfectly healthy. 
And the result! Well, it will astonish the reader to 
know that the healthy hive remained perfectly clean, 
though it received the whole of the working force and a 
great number of the younger nursing bees of the diseased 
hive. But throughout this experiment it is to be distinctly 
understood ¢he dees were not first smoked or in any way 
intimidated, so that the normal condition of the workers 
was not upset in any way. They did not therefore gorge 
themselves with honey—but the workers in the fields 
from the diseased hive returned to the clean hive then 
in its place. | 
Queenless Interval by Swarming.* 
The next case was simply one of zzcreasing from a badly 
diseased hive which had a native queen. At the middle 
of a warm day’ the hive was lightly smoked and the queen 
removed, so that she might be left in a clean hive on the 
old stand, with foundation in the frames, to collect the 
flying bees. They were given one frame of healthy capped 
* By this method there is no loss of time, as in removing a queen 
from a stock without swarming, while young bees only are left on the 
diseased combs. 
