is another form of advertisement. Many 
flowers smell more strongly at night, for 
the benefit of the night-flying moths and 
insects. 
The honey is generally at the very 
bottom or end of the flower; and the 
insect, to get at it, has to crawl right 
inside. To do this, it must get dusted 
with some of the pollen, either on its 
back, or its legs, or some other part of 
it. Then, when it has sucked up all the 
honey it can get, off it goes to another 
flower, and in entering leaves some of 
the pollen-dust behind and _ perhaps 
gets a fresh supply. And so, as the 
creature goes from flower to flower 
through the drowsy summer day, it 
is, without knowing it, working for the 
plants, and getting paid for it with 
honey—a very satisfactory arrangement, 
9 
