THE UNDERLYING IDEA 47 
the aquarium the little mass of transparent jelly which 
surrounds and protects the delicate eggs of these crea- 
tures. fastened as they are it is easy to direct a 
magnifying glass so as to observe the change which 
goes on within these transparent eggs. It is even 
possible to apply a microscope in such a way as to 
watch the transformation under the low power of the 
glass. At first the eggs are as clear as water, having 
at the center a slightly yellowish spot. This central 
mass divides and subdivides until the separated sec- 
tions grow so small and numerous as to lose indi- 
viduality. Then the mass begins to press out here 
and dent in there. After a little while a double line 
of fine, hairlike projections runs around the creature. 
These hairs wave in such fashion as to make the 
embryo snail revolve slowly in its egg. A little later 
and swellings become more pronounced over the sur- 
face. One side flattens; the rotary motion stops; eyes 
appear at the front of the animal; a hump on the 
back begins to be covered with a shell, and the little 
creatures, pushing from the jelly, start their life jour- 
ney on the side of the aquarium. Why did it happen? 
How did it happen? Here we have seen creation at 
work. Here surely the hand of the Creator is work- 
ing in the only sense in which the Creator may be 
properly said to have a hand. How the history of the 
substance out of which the egg was produced provides 
