A JUNGLE LABOR-UNION 167 
with every leaf-cutting gang, hastening along 
with their larger brethren, but never doing any- 
thing, that I could detect, at their journey’s end. 
I have a suspicion that the little Minims, who 
are very numerous, function as light cavalry; 
for in case of danger they are as eager at attack 
as the great soldiers, and the leaf-cutters, ab- 
sorbed in their arduous labor, would benefit 
greatly from the immunity ensured by a flying 
corps of their little bulldog comrades. 
I can readily imagine that these nestling Min- 
ims become weary and foot-sore (like bank- 
clerks guarding a reservoir), and if instinct al- 
lows such abominable individuality, they must 
often wish themselves back at the nest, for every 
mile of a Medium is three miles to them. 
Here is where our mechanical formula breaks 
down; for, often, as many as one in every five 
leaves that pass bears aloft a Minim or two, cling- 
ing desperately to the waving leaf and getting 
a free ride at the expense of the already over- 
burdened Medium. Ten is the extreme number 
seen, but six to eight Minims collected on a sin- 
gle leaf is not uncommon. Several times I have 
seen one of these little banner-riders shift deftly 
