DISEASES AND ENEMIES. 
549 
showed four or five bacilli, swimming along with a lazy 
sort of progression. Detaching now a half-developed 
egg, and crushing it flat, nine bacilli were quickly 
counted. 
This was not an isolated case. Queens from 
badly-infected stocks are frequently themselves 
diseased, and, amongst the very large number I have 
had the opportunity of examining, some most inter- 
esting examples have presented themselves. In one, 
the spermatheca (page 224, Vol. I.) contained no 
spermatozoa, although the queen was young and had 
mated, since she had produced worker bees ; but the 
spermatheca was filled with a dirty fluid, through 
which were scattered innumerable minute and irregular 
granules, amongst which swam large numbers of bacilli. 
Here, then, was a distinctly localised attack, which 
left the adjacent ovaries still in perfect health ; and 
a question of some difficulty presents itself. The 
disease seems always acute in the larvae, embracing 
all parts of their organisation. This may possibly result 
from the thinness of their membranes, the freedom 
of their viscera, the frequency of invagination, and the 
rapidity of interstitial changes in their case. In the 
imago, on the contrary, the disease assumes a chronic 
character, and, confined to a portion of the frame, 
at least temporarily, may be several weeks, and 
possibly, in queens, even months, in running its course. 
The name foul brood, given in ignorance of the 
nature and scope of the malady, is manifestly utterly 
inappropriate. To say that a queen is suffering 
from foul brood is clearly ridiculous. The name 
Bacillus alvei^ which I proposed, is now passing into 
