206 
HAROLD'S DISCUSSIONS. 
As we look we see only small globules, and we are 
inclined to turn away without further interest. 
But wait a few minutes: one of the oval bodies 
begins to swell; a protuberance develops on one side; 
it looks like a small potato 
grown to a large one. We 
look again and they are sepa¬ 
rated. That is not all: each 
of the two oval bodies begins 
to swell on one side and go 
through the same process that 
the first one did. There is 
one that has two buds at the 
same time, and another with 
three. 
The little oval bodies that 
mother-cell are called daughter- 
cells. This method of multi¬ 
plication is gemmation, though it is commonly called 
fermentation. 
The products of this process of multiplication are 
two: carbon dioxid and alcohol. In the bread sponge 
the carbon dioxid produces the bubbles, which usually 
break, allowing the gas to escape. In the dough they 
remain and make it porous, or “ light.” The alcohol 
is driven off by the heat in baking. Probably Chicago 
alone produces annually in this way no less than ten 
thousand barrels of alcohol. 
The thing that surprises us about these ‘‘little 
things ” is that there is growth, and where there is 
