DUST PLANTS . 
DUST PLANTS 
IS 
We have seen from the dust-garden that dust does 
contain living plants which, when they find food in a 
moist, warm place, will grow and multiply. 
They were not seen when they settled out of the 
dust on the jelly, and not until they had reproduced 
% 
Fig. C. (a) One Colony of Bacilli or Rod-Shaped Bacteria as Seen In 
“Dust Garden.” Highly Magnified. 
(b) Eight Bacteria from the Colony, Magnified Much More. 
(After Pruddeu.) 
Colony of 
Dust Plants 
themselves many times, so that a “colony” was formed, 
were we able to see that anything had been planted 
in the dust garden. But each colony or spot shows 
where a single plant dropped on the gelatine; the spot 
becomes visible only after it contains thousands of in¬ 
dividuals, which are kept close together by the gelatine. 
